Metabolic Renewal Review: Does Hormone-Based Weight Loss Work?

Metabolic Renewal Review: Does Hormone-Based Weight Loss Work?

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Metabolic Renewal is a popular weight loss program targeted to women. It claims to be effective because it’s targeted to the “female metabolism."

But do women really require different weight loss strategies than men? Does hormone-based weight loss make sense? Does Metabolic Renewal provide medical proof of their health claims?

In this article we'll seek to answer these questions and more by reviewing the Metabolic Renewal program in detail and highlighting some claims made by the company we find questionable.

Does Metabolic Renewal Work?

Metabolic Renewal uncited scientific data

Metabolic Renewal’s site makes various health claims on a “Science” page of their website which are entirely uncited. 

The first “Finding” states that women burn 65% more fat than men. The details state that a 2002 study in The American Journal of Physiology, Endocrinology and Metabolism proves this, however we searched every article published that year and cannot find this study. Use this link if you’d like to search the journal’s database for that year yourself. 

We have never come across clinical data suggesting that this is true, so we will consider it to be false.

Medical research has shown that women burn more fat during exercise than men, because women have higher body fat on average, but we cannot find any data backing the 65% claim.

Metabolic Renewal’s “Finding #3,” shown above, claims that the program burns 10x more fat with zero medical citations or proof in the entire section.

While any exercise program can help individuals lose weight, we do not believe that Metabolic Renewal is likely to be more effective than any other exercise program, given the lack of legitimate proof of their claims.

Metabolic Renewal Real User Review

One of the most popular reviews of Metabolic Renewal on YouTube is published by a channel called "Ruby Rouge Reviews." It has achieved over 35,000 views at the time of updating this article.

The video appears unsponsored and the creator shares her experience using Metabolic Renewal for eight months, and explains whether it caused weight loss:

Questionable Health Claims

Metabolic Renewal uncited health claims

Metabolic Renewal’s site makes many questionable and uncited health claims.

At the time of initially writing this article, the brand's homepage claimed that “exercising like a man can suppress a woman’s thyroid.” This claim had a citation number, but no matching citation anywhere on the page, likely because this claim is complete nonsense and unscientific.

There are no medically-defined gender roles for exercise. Both men and women benefit from all forms of exercise, from anaerobic to aerobic to low-intensity exercise like walking.

Their homepage also claimed that “for the past 100 years, nearly all of the exercise and nutrition research has been done on men.” This is blatantly false.

A cursory search of PubMed, the leading free medical database of research studies, provides 572,000 results for the search term “men”, and 1,526,000 for the search term “women”.

A search for “women + exercise” (which searches the database for published medical papers containing both terms) provides 58,000 results.

Both of the above statements have since been removed from the brand's website, potentially because our article (which ranks very well in Google search and reaches many people) clearly disproved both claims.

Metabolic Renewal’s site still claims that “most women fall into one of 7 core Hormone Types” without any medical citation. We consider this statement unscientific. We have not come across any medical evidence that women can be categorized into "hormone types."

Modern medicine has a good understanding of hormones and this is a made-up term the company is using to market an email solution to their customers. We find this to be a highly questionable business practice.

Are Gendered Weight Loss Programs Illogical?

We consider gendered weight loss programs to be entirely illogical. While men and women are certainly different biologically, weight loss is a simple thermodynamic process: calories in versus calories out.

Regardless of gender, an individual burning more calories than they consume will lose weight (outside of exceedingly rare medical conditions). An individual consuming more calories than they burn will gain weight.

We have not come across any convincing medical evidence that women and men require distinct weight loss strategies.

Gendered weight loss programs are a great marketing strategy, because they can appear to be more targeted and relevant than broader strategies like eating healthier and exercising, but we consider it to be a red flag when brands make gendered weight loss claims, and we'd recommend that consumers avoid products and services making gendered weight loss claims without medical evidence.

Founder Is Not Medical Doctor

The founder of Metabolic Renewal is a man by the name of Jade Teta. As he documents on the “About Dr. Teta” page on their site, he is a naturopathic doctor.

While naturopaths are allowed to refer to themselves as doctors, typically Medical Doctors (MD) bear this title, so we wanted to highlight this distinction for readers.

Naturopathic doctors are only required to complete around 6,000 hours of clinical training, while Medical Doctors complete around 21,000 hours according to this breakdown by the American Academy of Family Physicians (AAFP).

We’re not against naturopathic medicine necessarily; we’re against bad science.

Our Clean Weight Loss Picks

There are food-based nutrients which have been shown in medical studies to be effective for weight loss.

Dietary fiber was shown in a medical review published in The Journal of Nutrition to cause 16 pounds of weight loss in 6 months when combined with moderate caloric restriction (750 calories per day below baseline).

Supergut Fiber Mix is our top fiber supplement, because it contains three different types of fiber powder, and retails for only $1.75 per serving at a subscription rate.

MCT oil was shown in a meta-study to cause more than one pound of weight loss over 10 weeks. This equates to potential annualized weight loss of 6 pounds per year with less than one tablespoon's worth of MCT oil per day.

Bulletproof MCT Oil is our top MCT oil product, because the only ingredient is MCT oil derived from coconuts. and it currently costs only $15.50 for over a month's worth of product.

Ginger intake "significantly decreased body weight" according to a 2019 meta-study on ginger and weight loss that analyzed data from 14 clinical trials.

Pique La Ginger is our top ginger product, because it's an organic tea in convenient crystallized form, and all that's needed is to pour the powder into a glass and add hot water.

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

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We strongly recommend that consumers avoid Metabolic Renewal, and consider the program to be a waste of money.

While the program may be effective for weight loss, because any diet and exercise program can be effective for weight loss if it reduces calories consumed below maintenance, we haven't come across any medical research suggesting that this program is more effective than any other weight loss program.

Metabolic Renewal's website makes various health claims which appear unscientific and are entirely uncited. We have not seen any legitimate medical research suggesting that men and women require different weight loss strategies, which calls the entire premise of the company into question.

We consider this to be the worst weight loss program we've ever reviewed on Illuminate Health.

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