Disclaimer: None of the information in this article constitutes medical advice. All statements are merely the opinion of the writer(s). We recommend that patients follow their doctor’s guidance in regard to nutritional choices.
Crystal Light is a flavoring packet that’s added to water. The brand highlights the low calorie count, and claims their products can “satisfy your need for sweet refreshment.”
But is Crystal Light bad for you, or is it a healthy option? Does it contain unhealthy additives? Is Crystal Light Pure a healthier option than regular Crystal Light? And why was the brand recently sued about some ingredients used?
In this article we’ll answer all of these questions and more, as we analyze the ingredients in Crystal Light and Crystal Light Pure to give our take on whether or not the flavoring packets are bad for you.
We’ll also document a recent lawsuit filed against Crystal Light related to some of the ingredients used in their products.
Key takeaways:
- Contains large number of ingredients we consider unhealthy
- We do not consider Crystal Light Pure to be healthier than Classic
- We do not currently recommend any Crystal Light products
Ingredient Analysis – Crystal Light Classics
The “Classics” line is the original Crystal Light product line, and the ingredients in the Strawberry Orange Banana flavor are shown below:

image source: https://www.kraftheinz.com/crystal-light
There are a number of ingredients in this formulation that we consider unhealthy.
Citric acid is a flavoring additive that’s typically derived from a fungus according to a medical review published in the Toxicology Reports journal.
The same review documents that some individuals experience whole-body inflammation after ingesting this compound.
Natural flavor and artificial flavor are broad descriptors that fail to identify the specific flavoring chemicals used.
A 2013 medical review suggests that some flavoring additives and their metabolites may have toxic effects.
Aspartame is an artificial sweetener that was described as “possibly carcinogenic” in a report published by the World Health Organization in 2023.
Acesulfame potassium is an artificial sweetener that’s clinically shown to cause weight gain, as we documented in our article on is Zyns bad for you.
Red 40 and Blue 1 are artificial colorants, and a 2012 medical review on the toxicity of food dyes concluded the following:
“...all of the currently used dyes should be removed from the food supply and replaced, if at all, by safer colorings.”
This product contains a large number of unhealthy inactive ingredients, and is low in nutritional value.
Overall, we consider Crystal Light Classics to be bad for you.
Why Was Crystal Light Sued?
In 2022, Crystal Light was the subject of a class-action lawsuit according to Top Class Actions.
The plaintiff alleged that Crystal Light drinks were falsely marketed as natural, while containing an artificial flavor.
We don’t believe this lawsuit should concern prospective consumers, because it relates more to marketing than product safety.
Whether or not the brand is healthy depends on its ingredients, which we thoroughly overviewed in the previous section so that consumers can make an informed purchase decision.
Ingredient Analysis – Crystal Light Pure
The ingredients in the Raspberry Lemonade flavor of Crystal Light Pure are shown below:

image source: https://www.kraftheinz.com/crystal-light
This product has a nearly identical formulation to Crystal Light Classics.
Citric acid, aspartame, natural flavor, artificial flavor, acesulfame potassium, Red 40 and Blue 1 are all ingredients we discussed in the previous Ingredient Analysis section, and are all ingredients we consider to be unhealthy.
We do not consider Crystal Light Pure to be healthier than Crystal Light Classics, and would recommend against both products.