{"id":606948196658,"title":"Isopure Review: Best Keto Protein Brand?","created_at":"2024-01-14T11:46:08-05:00","body_html":"\u003cscript type=\"application\/ld+json\"\u003e\/\/ \u003c![CDATA[\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"Article\",\n \"headline\": \"Isopure Review: Best Keto Protein Brand?\",\n \"keywords\": \"isopure, isopure protein, isopure protein reviews, isopure protein drink, isopure protein powder, isopure zero carb, isopure zero carb protein powder\",\n \"description\": \"Our research team reviews the ingredients in two of Isopure's most popular products (Protein Drink and Zero Carb Protein Powder) based on clinical studies to give our take on whether or not these prodcuts can support muscle growth, and whether or not they're healthy.\",\n \"url\": \"https:\/\/illuminatelabs.org\/blogs\/health\/isopure-review\",\n\"author\": {\n \"@type\": \"Person\",\n \"name\": \"Calloway Cook\",\n \"url\": \"https:\/\/illuminatelabs.org\/pages\/calloway-cook\",\n \"sameAs\": \"https:\/\/www.linkedin.com\/in\/calloway-cook\/\",\n \"jobTitle\": \"President\",\n \"knowsAbout\": \"entrepreneurship, dietary supplements, herbal supplements, eCommerce, medical research\",\n \"alumniOf\": {\n \"@type\": \"EducationalOrganization\",\n \"name\": \"S.I. Newhouse School of Public Communications at Syracuse University\"\n },\n \"memberOf\": {\n \"@type\": \"Organization\",\n \"name\": \"Illuminate Labs\"\n }\n},\n\"editor\": {\n \"@type\": \"Person\",\n \"name\": \"DJ Mazzoni\",\n \"honorificSuffix\": [\n \"M.S.\",\n \"R.D.\",\n \"C.D.N.\",\n \"C.S.C.S.\"\n ],\n \"url\": \"https:\/\/illuminatelabs.org\/pages\/dj-mazzoni\",\n \"sameAs\": [\n \"https:\/\/www.linkedin.com\/in\/dj-mazzoni-rd-cdn-cscs-00a33038\/\",\n \"http:\/\/djmazzoni.com\/\"\n ],\n \"jobTitle\": \"Medical Reviewer\",\n \"knowsAbout\": \"exercise, drugs, pharmaceutical, health, workout, strength and conditioning, nutrition, dietetics, medicine, medical research, scientific research, scientific method, healthcare, patient care, wellness\",\n \"alumniOf\": {\n \"@type\": \"EducationalOrganization\",\n \"name\": [\n \"State University of New York College Oswego\",\n \"D’Youville College\"\n ]\n },\n \"memberOf\": {\n \"@type\": \"Organization\",\n \"name\": \"Illuminate Labs\"\n }\n},\n\"image\": {\n\"@type\": \"ImageObject\",\n\"url\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0047\/1524\/9737\/files\/Isopure_Protein_Thumbnail.png?v=1705292801\",\n\"width\": \"1892\",\n\"height\": \"1892\"\n},\n\"citation\": [\n\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/pmid\/29497353\/\", \n\"https:\/\/pubmed.ncbi.nlm.nih.gov\/10513764\/\",\n\"https:\/\/pubmed.ncbi.nlm.nih.gov\/28832835\/\",\n\"https:\/\/illuminatelabs.org\/blogs\/health\/seeq-review\",\n\"https:\/\/pubmed.ncbi.nlm.nih.gov\/32006369\/\",\n\"https:\/\/illuminatelabs.org\/blogs\/health\/best-protein-powder\",\n\"https:\/\/pubmed.ncbi.nlm.nih.gov\/30681787\/\",\n\"https:\/\/www.theisopurecompany.com\/en-us\/Products\/Drinks\/ISOPURE%C2%AE-32G-PROTEIN\/p\/C101340\",\n\"https:\/\/www.vitaminshoppe.com\/p\/nature-best-isopure-isopure-rtd-zero-carb-alpine-punch-12-drinks\/np-1149\",\n\"https:\/\/www.theisopurecompany.com\/en-us\/Products\/Powder\/ISOPURE%C2%AE-ZERO-CARB-PROTEIN-UNFLAVORED\/p\/C101302\",\n\"https:\/\/www.walmart.com\/ip\/Isopure-Zero-Carb-100-Whey-Protein-Isolate-25g-Protein-Powder-Unflavored-3-lb-47-Servings\/21642250\"\n],\n\"mentions\": [{\n \"@type\": \"Organization\",\n \"name\": \"Glanbia Performance Nutrition\"\n },\n {\n \"@type\": \"Thing\",\n \"name\": \"whey protein isolate\"\n },\n {\n \"@type\": \"Thing\",\n \"name\": \"artificial flavor\"\n },\n {\n \"@type\": \"Thing\",\n \"name\": \"artificial food dyes\"\n },\n {\n \"@type\": \"Brand\",\n \"name\": \"Nutricost\"\n },\n {\n \"@type\": \"Thing\",\n \"name\": \"keto\"\n },\n {\n \"@type\": \"Organization\",\n \"name\": \"Amazon\"\n },\n {\n \"@type\": \"Organization\",\n \"name\": \"Google\"\n },\n {\n \"@type\": \"Organization\",\n \"name\": \"Vitamin Shoppe\"\n },\n {\n \"@type\": \"Organization\",\n \"name\": \"Walmart\"\n }\n],\n\"datePublished\": \"2024-01-14\",\n\"copyrightHolder\": {\n \"@type\": \"Organization\",\n \"name\": \"Illuminate Labs\"\n},\n\"publisher\": {\n \"@type\": \"Organization\",\n \"name\": \"Illuminate Labs\",\n \"url\": \"https:\/\/illuminatelabs.org\/\",\n \"description\": \"Illuminate Labs is the most transparent supplement company in the U.S., and is a leading publisher of research-based health information.\",\n \"knowsAbout\": \"supplements, science, nutrition, exercise, health, medication, pharmaceutical, wellness, diet, weight loss, medical research\",\n \"publishingPrinciples\": \"https:\/\/illuminatelabs.org\/pages\/editorial-guidelines\",\n \"memberOf\": [\n {\n \"@type\": \"Organization\",\n \"name\": \"U.S. Chamber of Commerce\",\n \"url\": \"https:\/\/www.uschamber.com\/\"\n },\n {\n \"@type\": \"Organization\",\n \"name\": \"Certified B Corp\",\n \"url\": \"https:\/\/www.bcorporation.net\/en-us\/\"\n },\n {\n \"@type\": \"Organization\",\n \"name\": \"Natural Products Association\",\n \"url\": \"https:\/\/www.npanational.org\/\"\n }\n ], \n \"logo\": {\n \"@type\": \"ImageObject\",\n \"url\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0047\/1524\/9737\/files\/Illuminate_Labs_Favicon_48x48_7595c3cc-e27b-47b8-a4fe-edcc7ed9b29a.png?v=1666502785\", \n \"width\": 48,\n \"height\": 48\n},\n \"foundingDate\": \"2019-01-30\",\n \"sameAs\": [\n \"https:\/\/www.instagram.com\/illuminatelabs\",\n \"https:\/\/twitter.com\/illuminatelabs\",\n \"https:\/\/www.linkedin.com\/company\/illuminate-labs-supplements\",\n \"https:\/\/www.youtube.com\/channel\/UCpgSJAsIPb-fZ25djtTxBEA\"\n ]\n }\n}\n\/\/ ]]\u003e\u003c\/script\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0047\/1524\/9737\/files\/Isopure_Protein_Review_Article_Header_Image_Optimized.png?v=1705250763\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"dc\"\u003eI\u003c\/span\u003esopure is a protein brand that's marketed as keto-friendly, and which is manufactured by a company called Glanbia Performance Nutrition. The company describes their protein powder line as \"Pure \u0026amp; Simple,\" and offers low-carb and zero-carb options.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBut do Isopure protein powders provide an effective protein dose for muscle building? Does the brand use any questionable additive ingredients? Is regular whey protein zero-carb? And how do real Isopure customers rate and describe the effects of this product line?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn this article we'll answer all of these questions and more, as we analyze the ingredients in two of Isopure's most popular protein powders based on clinical studies, to give our take on whether or not they're likely to be effective for muscle building, and whether or not they're healthy.\u003c\/p\u003e\n\u003cp\u003eWe'll review Isopure Protein Drink and Isopure Zero Carb Protein Powder.\u003c\/p\u003e\n\u003cp\u003eWe'll also feature unsponsored customer reviews, discuss whether regular whey protein contains carbs, and provide a cost comparison to show which retailers sell Isopure for the best prices.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003eIngredient Analysis \u003cmeta charset=\"utf-8\"\u003e— Protein Drink\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"Isopure Protein Drink Grape Frost ingredients\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0047\/1524\/9737\/files\/Isopure_Protein_Drink_Grape_Frost_Ingredients_Optimized.png?v=1705274112\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ingredients in the Grape Frost flavor of Isopure Protein Drink are shown above.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eWhey protein isolate\u003c\/strong\u003e is the active ingredient, and \u003cstrong\u003ethis drink provides 32 grams (g) of protein per bottle, which should be maximally effective for muscle building.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA 2018 \u003ca href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/pmid\/29497353\/\"\u003emedical review\u003c\/a\u003e suggests that around 25 g of protein post-workout or more provides maximal benefit for hypertrophy.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThere are a number of inactive ingredients in this formulation that we consider to be unhealthy.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePhosphoric acid\u003c\/strong\u003e is \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/10513764\/\"\u003eclinically shown\u003c\/a\u003e to be associated with low blood calcium levels.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNatural and artificial flavor\u003c\/strong\u003e are categorical descriptors that fail to identify the specific flavoring chemicals.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWe consider artificial flavor to be particularly unhealthy, as \u003cstrong\u003esome artificial flavors were shown to be toxic to animal cells\u003c\/strong\u003e in a \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/28832835\/\"\u003eclinical trial\u003c\/a\u003e published in the \u003cem\u003eBrazilian Journal of Biology\u003c\/em\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSucralose\u003c\/strong\u003e is an artificial sweetener shown to cause negative changes to insulin function in healthy, young adults, as we documented in our review of another protein brand called \u003ca href=\"https:\/\/illuminatelabs.org\/blogs\/health\/seeq-review\"\u003eSeeq\u003c\/a\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eRed 40\u003c\/strong\u003e and \u003cstrong\u003eBlue 1\u003c\/strong\u003e are artificial food dyes, and a 2020 \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/32006369\/\"\u003emeta-study\u003c\/a\u003e on artificial food dyes and health stated the following:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\"\u003cmeta charset=\"utf-8\"\u003eArtificial dyes have neurotoxic chemicals that aggravate mental health problems.\"\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOverall, we consider Isopure Protein Drink likely to be effective for supporting muscle growth, but we don't currently recommend this product from a health perspective due to the inactive ingredients discussed above.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBefore analyzing the ingredients in Isopure Zero Carb Protein Powder, we'll feature some unsponsored customer reviews of the brand.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003eReal People Try Isopure\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eA TikTok creator named Karla shares her experience using Isopure's protein powder:\u003c\/span\u003e\u003c\/p\u003e\n\u003cblockquote style=\"max-width: 325px; min-width: 325px;\" data-video-id=\"7282214026224913707\" cite=\"https:\/\/www.tiktok.com\/@karlagonzalezxo\/video\/7282214026224913707\" class=\"tiktok-embed\"\u003e\n\u003csection\u003e\u003ca href=\"https:\/\/www.tiktok.com\/@karlagonzalezxo?refer=embed\" title=\"@karlagonzalezxo\" target=\"_blank\"\u003e@karlagonzalezxo\u003c\/a\u003e An honest and chaotic review on Isopure infusions protein powder \u003ca href=\"https:\/\/www.tiktok.com\/tag\/isopureinfusion?refer=embed\" title=\"isopureinfusion\" target=\"_blank\"\u003e#isopureinfusion\u003c\/a\u003e \u003ca href=\"https:\/\/www.tiktok.com\/tag\/isopureinfusions?refer=embed\" title=\"isopureinfusions\" target=\"_blank\"\u003e#isopureinfusions\u003c\/a\u003e \u003ca href=\"https:\/\/www.tiktok.com\/tag\/isopureinfusionsmixedberry?refer=embed\" title=\"isopureinfusionsmixedberry\" target=\"_blank\"\u003e#isopureinfusionsmixedberry\u003c\/a\u003e \u003ca href=\"https:\/\/www.tiktok.com\/music\/Chill-Vibes-7084465663108089857?refer=embed\" title=\"♬ Chill Vibes - Tollan Kim\" target=\"_blank\"\u003e♬ Chill Vibes - Tollan Kim\u003c\/a\u003e\u003c\/section\u003e\n\u003c\/blockquote\u003e\n\u003cscript async=\"\" src=\"https:\/\/www.tiktok.com\/embed.js\"\u003e\u003c\/script\u003e\n\u003cp\u003e\u003cspan\u003eA TikTok creator named Eric Marinez shared his thoughts on the taste of Isopure Protein Drink:\u003c\/span\u003e\u003c\/p\u003e\n\u003cblockquote class=\"tiktok-embed\" cite=\"https:\/\/www.tiktok.com\/@eric_marinez\/video\/7114895535378599211\" data-video-id=\"7114895535378599211\" style=\"max-width: 325px; min-width: 325px;\"\u003e\n\u003csection\u003e\u003ca title=\"@eric_marinez\" href=\"https:\/\/www.tiktok.com\/@eric_marinez?refer=embed\" target=\"_blank\"\u003e@eric_marinez\u003c\/a\u003e 🍹\u003ca title=\"isopureprotein\" href=\"https:\/\/www.tiktok.com\/tag\/isopureprotein?refer=embed\" target=\"_blank\"\u003e#isopureprotein\u003c\/a\u003e \u003ca title=\"protein\" href=\"https:\/\/www.tiktok.com\/tag\/protein?refer=embed\" target=\"_blank\"\u003e#protein\u003c\/a\u003e \u003ca title=\"foryou\" href=\"https:\/\/www.tiktok.com\/tag\/foryou?refer=embed\" target=\"_blank\"\u003e#foryou\u003c\/a\u003e \u003ca title=\"share\" href=\"https:\/\/www.tiktok.com\/tag\/share?refer=embed\" target=\"_blank\"\u003e#share\u003c\/a\u003e \u003ca title=\"♬ original sound - Eric Marinez\" href=\"https:\/\/www.tiktok.com\/music\/original-sound-7114895531402627886?refer=embed\" target=\"_blank\"\u003e♬ original sound - Eric Marinez\u003c\/a\u003e\u003c\/section\u003e\n\u003c\/blockquote\u003e\n\u003cscript async=\"\" src=\"https:\/\/www.tiktok.com\/embed.js\"\u003e\u003c\/script\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003eIngredient Analysis — Zero Carb Protein Powder\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0047\/1524\/9737\/files\/Isopure_Zero_Carb_Protein_Powder_Ingredients_Optimized.png?v=1705283575\" alt=\"Isopure Zero Carb Protein Powder ingredients\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe ingredients in Isopure Zero Carb Protein Powder are shown above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis product has a much simpler and \"cleaner\" formulation than the brand's Protein Drink, which is why we recommended Isopure Zero Carb Protein Powder as our top keto protein powder in our \u003ca href=\"https:\/\/illuminatelabs.org\/blogs\/health\/best-protein-powder\"\u003ecleanest protein powder\u003c\/a\u003e review article.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis protein powder provides 25 g of protein per serving, which we established in the previous Ingredient Analysis section to be an effective dose for muscle building.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSoy lecithin\u003c\/strong\u003e is an emulsifier that should be safe and non-toxic.\u003c\/p\u003e\n\u003cp\u003eWe generally prefer recommending protein powders sourced from pastured animals, but this matters less from a nutritional perspective with protein isolate than with full-fat products like dairy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOverall, we consider Isopure Zero Carb Protein Powder likely to support muscle growth, and we consider this to be a healthy formulation.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBetween the two products, we would definitely recommend this one over the Protein Drink.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003eIsn't Most Whey Low-Carb?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eIsopure's marketing centers on its low-carb and zero-carb options, which is a somewhat strange value proposition in our opinion, given that whey protein isolate has low or zero carbs in most supplements.\u003c\/p\u003e\n\u003cp\u003eConsider the Nutrition Facts label below from Nutricost Whey Protein Isolate:\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0047\/1524\/9737\/files\/Nutricost_Whey_Protein_Isolate_Nutrition_Facts_Optimized.png?v=1705285756\" alt=\"Nutricost Whey Protein Isolate Nutrition Facts\"\u003e\u003c\/p\u003e\n\u003cp\u003eThis supplement contains only 1 g of carbs per serving, but also provides more protein and calories per serving.\u003c\/p\u003e\n\u003cp\u003eFor individuals on a ketogenic (keto) diet, perhaps it's worth paying extra for Isopure to save that 1 g of carbs per serving, but it's a substantial price premium.\u003c\/p\u003e\n\u003cp\u003eIsopure Zero Carb Protein Powder currently costs $79.99 for 47 servings, or \u003cstrong\u003e$1.70 per serving\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eNutricost Whey Protein Isolate currently costs $69.95 for 65 servings, or \u003cstrong\u003e$1.08 per serving\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSince whey protein isolate should be functionally equivalent between brands, budget-conscious consumers may want to consider other whey protein isolate brands than Isopure.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003eReal Customers Review Isopure\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAmazon is a better resource for honest customer reviews than a brand's website in our opinion.\u003c\/p\u003e\n\u003cp\u003eIsopure Zero Carb Protein Powder has been reviewed over 44,000 times at the time of publishing this article, with an average review rating of 4.5 out of 5 stars.\u003c\/p\u003e\n\u003cp\u003eThe top positive review from a verified purchaser comes from a user named \"AnnieK\" who gives the product a 5\/5 star rating, and who likes the taste:\u003c\/p\u003e\n\u003cp\u003e\"\u003cspan data-hook=\"review-body\" class=\"a-size-base review-text review-text-content\"\u003e\u003cspan\u003eThis is my go-to protein powder. No protein powder tastes good, including this one, but \u003cstrong\u003ethis one tastes better than all other protein powders. I would almost willingly drink this if I weren't using it for protein.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe top negative review from a verified purchaser is written by a user named \"The Nagars\" who gives the product a 1\/5 star rating, and who claims it caused side effects:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\"\u003cmeta charset=\"utf-8\"\u003e\u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003eNeither my wife nor I have any allergies or any sensitivities to food. We both had intense abdominal pain and explosive diarrhea every time we drank this.\u003c\/strong\u003e The funny thing is that we honestly didn’t realize that the culprit was this protein shake we were sharing until I got really sick.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIsopure Zero Carb Protein Powder currently has an average review rating of 4.4 out of 5 stars on Google.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cb\u003eOur Clean Protein Picks\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0047\/1524\/9737\/files\/Protein_Powder_Image_Optimized.png?v=1664075597\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/bulletproof.fdf2.net\/illuminatelabs\" rel=\"sponsored\"\u003eBulletproof Collagen Protein\u003c\/a\u003e\u003c\/strong\u003e\u003cspan\u003e is\u003c\/span\u003e our top overall protein powder pick, and costs\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eonly $1.32 per serving\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eat the time of publishing this article.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe main reason is its formulation: \u003cstrong\u003eBulletproof's protein powder only contains one single ingredient: collagen protein sourced from grass-fed animals.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eAs the core structural protein in skin, supplemental collagen is\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/30681787\/\"\u003eclinically shown\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto reduce visible signs of skin aging like wrinkles, which is a secondary benefit not offered by other types of protein like whey protein.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/promixnutrition.com\/products\/unflavored-whey-protein-powder?utm_campaign=squaredance\u0026amp;utm_source=affiliate\u0026amp;sqdid=pBwaCejYrGnzerbLkCiPwvzjiCqCjUwyJycPNOxE5KKkI523scNWeqEM-184DZ6v%2F%2F%2F\u0026amp;utm_medium=394421\" rel=\"sponsored\"\u003e\u003cstrong\u003ePromix Whey Protein\u003c\/strong\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eis our top whey protein powder, and costs\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eonly $0.93 per serving\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eat the time of publishing this article when you purchase the 5 pound bag.\u003c\/p\u003e\n\u003cp\u003eThis brand uses grass-fed whey protein and no sweeteners or flavoring additives.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eWhey protein is a \"complete\" protein, meaning it contains all nine essential amino acids.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/lovecomplement.com\/products\/complement-organic-vegan-plant-based-protein-unflavored?utm_source=illuminate\u0026amp;utm_medium=blog\u0026amp;utm_campaign=protein_un\u0026amp;utm_content=\u0026amp;aff=446\" rel=\"sponsored\"\u003eComplement Organic Protein\u003c\/a\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis our top vegan protein powder.\u003c\/p\u003e\n\u003cp\u003eThe only ingredients in this protein powder are a blend of nutritious plant proteins: organic yellow pea protein, organic pumpkin seed protein, organic almond protein, organic sunflower seed protein and organic chia seed protein.\u003c\/p\u003e\n\u003cp\u003eAll three of the products mentioned in this section are entirely free of additive ingredients that we consider to be unhealthy or unsafe.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003eWhere to Buy Isopure for the Best Price\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eIsopure products are sold at a variety of online retailers. \u003c\/p\u003e\n\u003cp\u003eHere's a price breakdown for a one-time purchase of the two products reviewed in this article, at the time of publishing:\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eIsopure Protein Drink (12-pack)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBrand website: $59.99 (plus shipping, \u003ca href=\"https:\/\/www.theisopurecompany.com\/en-us\/Products\/Drinks\/ISOPURE%C2%AE-32G-PROTEIN\/p\/C101340\"\u003elink\u003c\/a\u003e)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVitamin Shoppe: $54.99 (free shipping, \u003ca href=\"https:\/\/www.vitaminshoppe.com\/p\/nature-best-isopure-isopure-rtd-zero-carb-alpine-punch-12-drinks\/np-1149\"\u003elink\u003c\/a\u003e)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAmazon: $54.99 (free shipping, \u003ca href=\"https:\/\/amzn.to\/3RWR1j9\" rel=\"sponsored\"\u003elink to official Amazon listing\u003c\/a\u003e)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eIsopure Zero Carb Protein Powder (47 servings)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBrand website: $79.99 (free shipping, \u003ca href=\"https:\/\/www.theisopurecompany.com\/en-us\/Products\/Powder\/ISOPURE%C2%AE-ZERO-CARB-PROTEIN-UNFLAVORED\/p\/C101302\"\u003elink\u003c\/a\u003e)\u003c\/p\u003e\n\u003cp\u003eAmazon: $74.26 (free shipping, \u003ca href=\"https:\/\/amzn.to\/3O4WX8G\" rel=\"sponsored\"\u003elink to official Amazon listing\u003c\/a\u003e)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWalmart: $69.83 (free shipping, third-party seller, \u003ca href=\"https:\/\/www.walmart.com\/ip\/Isopure-Zero-Carb-100-Whey-Protein-Isolate-25g-Protein-Powder-Unflavored-3-lb-47-Servings\/21642250\"\u003elink\u003c\/a\u003e)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIsopure protein supplements are currently around 10% cheaper on third-party retailers than at the brand's website.\u003c\/p\u003e\n\u003cp\u003eHowever, the Walmart listing is from a third-party seller, so it may be safer to purchase Zero Carb Protein Powder from the official Amazon listing or the brand's website.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003ePros and Cons of Isopure\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eHere are the pros and cons of Isopure in our opinion:\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003ePros:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eZero Carb Protein Powder has no unhealthy ingredients\u003c\/li\u003e\n\u003cli\u003eZero Carb Protein Powder is only keto protein powder we've come across\u003c\/li\u003e\n\u003cli\u003eBoth products reviewed have effective protein dose for muscle building\u003c\/li\u003e\n\u003cli\u003eMostly positive online customer reviews\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eCons:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSomewhat expensive per serving\u003c\/li\u003e\n\u003cli\u003eProtein Drink contains artificial flavors\u003c\/li\u003e\n\u003cli\u003eProtein Drink contains artificial colors\u003c\/li\u003e\n\u003cli\u003eProtein Drink contains an artificial sweetener\u003c\/li\u003e\n\u003cli\u003eDoesn't appear to be clinically tested\u003c\/li\u003e\n\u003cli\u003eUnclear if brand sourced from grass-fed animals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003eConclusion\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eIn this article, we reviewed two Isopure protein supplements, and we consider one to be much better-formulated than the other. \u003c\/p\u003e\n\u003cp\u003eIsopure Protein Drink provides an effective protein dose for muscle building, but also contains a range of unhealthy additives including artificial flavors, artificial colors and an artificial sweetener.\u003c\/p\u003e\n\u003cp\u003eIsopure Zero Carb Protein Powder provides an effective protein dose for muscle building, and has no additive ingredients that we consider to be unhealthy.\u003c\/p\u003e\n\u003cp\u003eThe Zero Carb Protein Powder is also the only protein supplement we've reviewed to date on Illuminate Health that contains 0 g of carbs per serving, so it may be a good option for keto dieters.\u003c\/p\u003e\n\u003cp\u003eIndividuals on low-carb, rather than keto, may benefit from considering other whey protein isolate supplements, because Isopure's Zero Carb Protein Powder has a relatively high price per serving.\u003c\/p\u003e\n\u003cp\u003eMost of the online customer reviews of Isopure that we came across while researching this article were positive.\u003c\/p\u003e\n\u003cp\u003eAt the time of publishing this article, third-party retailers like Amazon and Vitamin Shoppe have better prices on one-time purchases of Isopure's products than the brand's website.\u003c\/p\u003e","blog_id":49281925193,"author":"Calloway Cook","user_id":26601750601,"published_at":"2024-01-14T23:32:15-05:00","updated_at":"2024-02-14T13:54:12-05:00","summary_html":"We review the ingredients in two of Isopure's most popular products (Protein Drink and Zero Carb Protein Powder) based on clinical studies to give our take on whether or not these prodcuts can support muscle growth, and whether or not they're healthy.","template_suffix":"","handle":"isopure-review","tags":"_related:protein"}

Isopure Review: Best Keto Protein Brand?

Isopure Review: Best Keto Protein Brand?


| |
| |
Read our Editorial Guidelines to learn more about what makes our site the premier resource for online health information.

Isopure is a protein brand that's marketed as keto-friendly, and which is manufactured by a company called Glanbia Performance Nutrition. The company describes their protein powder line as "Pure & Simple," and offers low-carb and zero-carb options.

But do Isopure protein powders provide an effective protein dose for muscle building? Does the brand use any questionable additive ingredients? Is regular whey protein zero-carb? And how do real Isopure customers rate and describe the effects of this product line?

In this article we'll answer all of these questions and more, as we analyze the ingredients in two of Isopure's most popular protein powders based on clinical studies, to give our take on whether or not they're likely to be effective for muscle building, and whether or not they're healthy.

We'll review Isopure Protein Drink and Isopure Zero Carb Protein Powder.

We'll also feature unsponsored customer reviews, discuss whether regular whey protein contains carbs, and provide a cost comparison to show which retailers sell Isopure for the best prices.

Ingredient Analysis — Protein Drink

Isopure Protein Drink Grape Frost ingredients

The ingredients in the Grape Frost flavor of Isopure Protein Drink are shown above.

Whey protein isolate is the active ingredient, and this drink provides 32 grams (g) of protein per bottle, which should be maximally effective for muscle building.

A 2018 medical review suggests that around 25 g of protein post-workout or more provides maximal benefit for hypertrophy.

There are a number of inactive ingredients in this formulation that we consider to be unhealthy.

Phosphoric acid is clinically shown to be associated with low blood calcium levels.

Natural and artificial flavor are categorical descriptors that fail to identify the specific flavoring chemicals.

We consider artificial flavor to be particularly unhealthy, as some artificial flavors were shown to be toxic to animal cells in a clinical trial published in the Brazilian Journal of Biology.

Sucralose is an artificial sweetener shown to cause negative changes to insulin function in healthy, young adults, as we documented in our review of another protein brand called Seeq.

Red 40 and Blue 1 are artificial food dyes, and a 2020 meta-study on artificial food dyes and health stated the following:

"Artificial dyes have neurotoxic chemicals that aggravate mental health problems."

Overall, we consider Isopure Protein Drink likely to be effective for supporting muscle growth, but we don't currently recommend this product from a health perspective due to the inactive ingredients discussed above.

Before analyzing the ingredients in Isopure Zero Carb Protein Powder, we'll feature some unsponsored customer reviews of the brand.

Real People Try Isopure

A TikTok creator named Karla shares her experience using Isopure's protein powder:

@karlagonzalezxo An honest and chaotic review on Isopure infusions protein powder #isopureinfusion #isopureinfusions #isopureinfusionsmixedberry ♬ Chill Vibes - Tollan Kim

A TikTok creator named Eric Marinez shared his thoughts on the taste of Isopure Protein Drink:

@eric_marinez 🍹#isopureprotein #protein #foryou #share ♬ original sound - Eric Marinez

Ingredient Analysis — Zero Carb Protein Powder

Isopure Zero Carb Protein Powder ingredients

The ingredients in Isopure Zero Carb Protein Powder are shown above.

This product has a much simpler and "cleaner" formulation than the brand's Protein Drink, which is why we recommended Isopure Zero Carb Protein Powder as our top keto protein powder in our cleanest protein powder review article.

This protein powder provides 25 g of protein per serving, which we established in the previous Ingredient Analysis section to be an effective dose for muscle building.

Soy lecithin is an emulsifier that should be safe and non-toxic.

We generally prefer recommending protein powders sourced from pastured animals, but this matters less from a nutritional perspective with protein isolate than with full-fat products like dairy.

Overall, we consider Isopure Zero Carb Protein Powder likely to support muscle growth, and we consider this to be a healthy formulation.

Between the two products, we would definitely recommend this one over the Protein Drink.

Isn't Most Whey Low-Carb?

Isopure's marketing centers on its low-carb and zero-carb options, which is a somewhat strange value proposition in our opinion, given that whey protein isolate has low or zero carbs in most supplements.

Consider the Nutrition Facts label below from Nutricost Whey Protein Isolate:

Nutricost Whey Protein Isolate Nutrition Facts

This supplement contains only 1 g of carbs per serving, but also provides more protein and calories per serving.

For individuals on a ketogenic (keto) diet, perhaps it's worth paying extra for Isopure to save that 1 g of carbs per serving, but it's a substantial price premium.

Isopure Zero Carb Protein Powder currently costs $79.99 for 47 servings, or $1.70 per serving.

Nutricost Whey Protein Isolate currently costs $69.95 for 65 servings, or $1.08 per serving.

Since whey protein isolate should be functionally equivalent between brands, budget-conscious consumers may want to consider other whey protein isolate brands than Isopure.

Real Customers Review Isopure

Amazon is a better resource for honest customer reviews than a brand's website in our opinion.

Isopure Zero Carb Protein Powder has been reviewed over 44,000 times at the time of publishing this article, with an average review rating of 4.5 out of 5 stars.

The top positive review from a verified purchaser comes from a user named "AnnieK" who gives the product a 5/5 star rating, and who likes the taste:

"This is my go-to protein powder. No protein powder tastes good, including this one, but this one tastes better than all other protein powders. I would almost willingly drink this if I weren't using it for protein."

The top negative review from a verified purchaser is written by a user named "The Nagars" who gives the product a 1/5 star rating, and who claims it caused side effects:

"Neither my wife nor I have any allergies or any sensitivities to food. We both had intense abdominal pain and explosive diarrhea every time we drank this. The funny thing is that we honestly didn’t realize that the culprit was this protein shake we were sharing until I got really sick."

Isopure Zero Carb Protein Powder currently has an average review rating of 4.4 out of 5 stars on Google.

Our Clean Protein Picks

Bulletproof Collagen Protein is our top overall protein powder pick, and costs only $1.32 per serving at the time of publishing this article.

The main reason is its formulation: Bulletproof's protein powder only contains one single ingredient: collagen protein sourced from grass-fed animals.

As the core structural protein in skin, supplemental collagen is clinically shown to reduce visible signs of skin aging like wrinkles, which is a secondary benefit not offered by other types of protein like whey protein.

Promix Whey Protein is our top whey protein powder, and costs only $0.93 per serving at the time of publishing this article when you purchase the 5 pound bag.

This brand uses grass-fed whey protein and no sweeteners or flavoring additives. Whey protein is a "complete" protein, meaning it contains all nine essential amino acids.

Complement Organic Protein is our top vegan protein powder.

The only ingredients in this protein powder are a blend of nutritious plant proteins: organic yellow pea protein, organic pumpkin seed protein, organic almond protein, organic sunflower seed protein and organic chia seed protein.

All three of the products mentioned in this section are entirely free of additive ingredients that we consider to be unhealthy or unsafe.

Where to Buy Isopure for the Best Price

Isopure products are sold at a variety of online retailers. 

Here's a price breakdown for a one-time purchase of the two products reviewed in this article, at the time of publishing:

Isopure Protein Drink (12-pack)

Brand website: $59.99 (plus shipping, link)

Vitamin Shoppe: $54.99 (free shipping, link)

Amazon: $54.99 (free shipping, link to official Amazon listing)

Isopure Zero Carb Protein Powder (47 servings)

Brand website: $79.99 (free shipping, link)

Amazon: $74.26 (free shipping, link to official Amazon listing)

Walmart: $69.83 (free shipping, third-party seller, link)

Isopure protein supplements are currently around 10% cheaper on third-party retailers than at the brand's website.

However, the Walmart listing is from a third-party seller, so it may be safer to purchase Zero Carb Protein Powder from the official Amazon listing or the brand's website.

Pros and Cons of Isopure

Here are the pros and cons of Isopure in our opinion:

Pros:

  • Zero Carb Protein Powder has no unhealthy ingredients
  • Zero Carb Protein Powder is only keto protein powder we've come across
  • Both products reviewed have effective protein dose for muscle building
  • Mostly positive online customer reviews

Cons:

  • Somewhat expensive per serving
  • Protein Drink contains artificial flavors
  • Protein Drink contains artificial colors
  • Protein Drink contains an artificial sweetener
  • Doesn't appear to be clinically tested
  • Unclear if brand sourced from grass-fed animals
Stay up-to-date on our research reviews

Conclusion

In this article, we reviewed two Isopure protein supplements, and we consider one to be much better-formulated than the other. 

Isopure Protein Drink provides an effective protein dose for muscle building, but also contains a range of unhealthy additives including artificial flavors, artificial colors and an artificial sweetener.

Isopure Zero Carb Protein Powder provides an effective protein dose for muscle building, and has no additive ingredients that we consider to be unhealthy.

The Zero Carb Protein Powder is also the only protein supplement we've reviewed to date on Illuminate Health that contains 0 g of carbs per serving, so it may be a good option for keto dieters.

Individuals on low-carb, rather than keto, may benefit from considering other whey protein isolate supplements, because Isopure's Zero Carb Protein Powder has a relatively high price per serving.

Most of the online customer reviews of Isopure that we came across while researching this article were positive.

At the time of publishing this article, third-party retailers like Amazon and Vitamin Shoppe have better prices on one-time purchases of Isopure's products than the brand's website.