Update
CHANGE YOUR FLAVORS
Turning over a product to read the nutrition label should make your decision easier, not more confusing. But between percentages, ingredient lists, and a unfamiliar terms, it can feel like a lot to process in a short time.
Once you know what to look for, the nutrition facts panel becomes one of the most useful tools for understanding how a product actually supports your goals. Whether you are focused on performance, recovery or overall health, learning how to read a nutrition label helps you move beyond marketing claims and focus on what truly matters.
Every number on a nutrition label is based on the serving size, which is why this is always the best place to start.
According to the U.S. Food and Drug Administration, serving sizes are designed to reflect what people typically consume, not necessarily what they should consume in one sitting.(1) This means that if you double the serving, you are also doubling everything else on the label, including calories, protein and sugars.
It is important to look at the number of servings per container, since what appears to be a single serving packaging may actually contain multiple servings. This can significantly change the total amount of calories, protein, carbohydrates, fats and other nutrients being consumed.
For products like protein powder, where a scoop can vary slightly depending on how it is measure, this detail matters more than most people realize.
Calories tell you how much energy a product provides, but they do not tell you how that energy is being delivered.
Two products with the same calorie count can have very different nutritional value depending on their protein content, carbohydrate sources, fat content and ingredient quality. Instead of focusing on calories alone, it is more helpful to look at how these calories are made up.
Protein is often the first thing people check, especially when evaluating performance products. Seeing 10 to 25 grams per serving is a good starting point, but that number alone does not tell the full story.
Protein quality matters just as much as quantity. Research shows that high quality proteins, particularly whey, support muscle protein synthesis and recovery when consumed regularly as part of an active lifestyle.(2,3) Whey is considered a complete protein because it contains all essential amino acids, which also contributes to a higher percent daily value (%DV) on the nutrition label. Not all protein sources provide the same amino acid profile, which is why two products with similar grams of protein may have different %DV values listed.
There are also ways to evaluate protein quality more directly. The digestible indispensable amino acid score, or DIASS, measures how effectively a protein can be digested and used by the body.(4) High quality dairy proteins, like whey, typically score very well because they provide all essential amino acids in highly digestible forms, while some other protein sources, such as pea or soy protein, may score differently due to variations in amino acid composition and digestibility.
This becomes especially relevant when thinking about overall intake and how protein is distributed across the day, both of which influencer your daily protein needs.
Carbohydrates are the body's primary source of energy and can play an important role depending on your activity level.
For active individuals, carbohydrates support training performance and recovery. One a nutrition label, it is helpful to look at total carbohydrates, dietary fiber, and added sugars to better understand the type and purpose of the carbohydrates included in a product.
Total carbohydrates represent the combined amount of carbohydrates in a serving, including starches, fiber and sugars. Dietary fiber is a type of carbohydrate that the body does not full digest and is often included to support digestion and overall health. Added sugars, on the other hand, refer to sugars introduced during processing rather than those naturally occurring in foods like fruit or dairy.
Understanding the difference between these categories can provide more context around ingredient quality and how a product may fit into your routine. In some cases, small amounts of carbohydrates are included intentionally to support function, energy or absorption.
The percent daily value provides a quick reference for how a nutrient fits into your overall daily intake. Percent daily values are based on general nutrition recommendations using a 2,000 calorie diet and are intended to serve as a reference point rather than a personalized target for every individual.(1)
According to the U.S Food and Drug Administration, five percent or less is considered low, while twenty percent or more is considered high.(1) This can help guide decisions around nutrients you may want to limit, such as added sugars, or prioritize, such as protein depending on your goals.
Sodium appears in the main section of the nutrition label alongside carbohydrates, fiber or protein.
It plays an important role in fluid balance and hydration(1). On a nutrition label, the sodium content can also provide insight into how a product was formulated and processed. Some sodium occurs naturally in ingredients, while additional sodium may be added for flavor, preservation or texture.
Looking at both the amount of sodium and the overall ingredient list can help provide better content for how a product fits into your routine and nutrition goals.
The bottom portion of the nutrition facts panel highlights nutrients that many people may not get enough of, including vitamin D calcium, iron and potassium.(1) These nutrients are listed separately because they play important roles in overall health and can provide additional context about the nutritional value of a product.
Vitamin D and calcium help support bone health and muscle function, while iron supports oxygen transport throughout the body. Potassium helps regulate fluid balance inside the cell and supports normal muscle and nerve function.(5)
Looking at these nutrients can also help you better understand where a products nutritional value is coming from. Some nutrients occur naturally in ingredients, while others may be added during formulation or fortification. Together, this section provides a more complete picture of whether a product contributes meaningful nutrients beyond macronutrients like protein, carbohydrates and fats.
While the nutrition facts panel gives you the numbers, the ingredient list tells you what those numbers are made of. Ingredients are listed in descending order by weight, meaning the first few ingredients make up the majority of the product.
This is where you can quickly assess the primary protein source, the presence of added sugars or sweeteners and the overall simplicity of the product.
Reading a nutrition label is less about focusing on one number and more about understanding how everything works together. Looking at serving size, protein quality, carbohydrate sources, sodium content and ingredient transparency provides a more complete picture of how a product fits into your routine.
At the end of the day, your nutrition should support what your body is trying to do. Whether your goals include:
The nutrition label helps you determine whether a product is actually delivering on those needs, especially when considered alongside how you fuel throughout the day and structure your daily routine.
U.S. Food and Drug Administration. (2022). How to understand and use the nutrition facts label. https://www.fda.gov/food/nutrition-facts-label/how-understand-and-use-nutrition-facts-label
Devries, M. C., & Phillips, S. M. (2015). Supplemental protein in support of muscle mass and health: Advantage whey. Journal of Food Science, 80(S1), A8–A15. https://doi.org/10.1111/1750-3841.12802
Mamerow, M. M., Mettler, J. A., English, K. L., Casperson, S. L., Arentson-Lantz, E., Sheffield-Moore, M., Layman, D. K., & Paddon-Jones, D. (2014). Dietary protein distribution positively influences 24-hour muscle protein synthesis in healthy adults. The Journal of Nutrition, 144(6), 876–880. https://doi.org/10.3945/jn.113.185280
Marinangeli, C. P. F., & House, J. D. (2017). Potential impact of the digestible indispensable amino acid score as a measure of protein quality on dietary regulations and health. Nutrition Reviews, 75(8), 658–667. https://doi.org/10.1093/nutrit/nux025
Institute of Medicine. (2005). Dietary reference intakes for water, potassium, sodium, chloride, and sulfate. National Academies Press. https://doi.org/10.17226/10925