Are these two things really equals?
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| | | Protein powder is often heralded as the answer to our protein needs. But protein powder is a supplement. So can it really offer our bodies the same nutritional value as the protein we get from food? Registered dietitian Kirsten Seele is here to help us understand more. | | | | | | | Eat up,
Ginger Wojcik
Newsletter Editor, Healthline |  | | Written by Ginger Wojcik
December 23, 2025 • 3 min read | | | |  | | | | Q: | Is there any difference in how the body uses protein powder versus protein from food? | | | A: | Your body generally uses the protein in protein powder in the same way it uses protein from food; however, we don't want to rely solely on protein supplements for our protein intake.
Protein powders are not considered meal replacements, as they don't contain adequate calories, macronutrient ratios, or micronutrients to be considered an actual "meal." If you're eating a well-balanced diet alongside the protein supplement, it can help ensure your body gets the necessary nutrition.
Another reason is the safety aspect of supplementation. Like all supplements, protein powders are not regulated by the Food and Drug Administration (FDA) for safety. Recently, high levels of lead were found in common protein powders and ready-to-drink protein shakes.
If you opt to use a protein supplement occasionally, it's best to find a product that has been tested by a third-party organization, such as the NSF.
Those with increased protein needs, such as older adults, athletes, and individuals managing their weight, may benefit from supplementation. This is a way to get a boost of protein without adding (many) additional calories.
Common types of protein powders include casein and whey for animal-based options and pea, soy, and hemp for plant-based options. Whey is generally the preferred choice for its quick absorption rate.
One key difference between animal-based and plant-based protein powders is the amino acid content. Animal-based proteins, along with soy-based powders, will contain all of the essential amino acids. Other plant-based options may lack specific amino acids, so make sure to read the label to see whether a product includes all nine essential amino acids.
Things to consider when choosing a protein include: - allergens
- ability to digest dairy
- veganism or vegetarianism
- other added ingredients
Protein powders are just one tool available to help you meet your needs. They are not a necessity, as most people can likely get enough protein through dietary sources. | | | | | Kirsten Seele, Registered Dietitian | | | Want to learn more about food, diets, cooking, or some other nutrition subject? Let us know at nutritionedition@healthline.com and we'll look into it for you! (Heads up, we may use your response in an upcoming newsletter.) | | | | | | | | What we're digesting | | 🫂 6 myths, misconceptions, stereotypes, and stigmas of schizophrenia. Learn more about this complex and often misunderstood condition. | | ❌ Everything you need to know about multiple food allergies. About 40% of kids with food allergies are allergic to more than one food. | | ✅ 5 impressive health benefits of acai berries. Their nutritious composition makes them an excellent addition to a healthy diet. | | 🦠 9 ways lactobacillus acidophilus can benefit your health. To boost levels, consume fermented goods or take supplements. | | | |   | | | Until next time, |  | Take care of yourself, and we'll see
you again soon! | | | | |  | | This edition was powered by | | essential amino acids.️ | | | | |
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