Protein

What is Whey Protein Concentrate?

Whey protein concentrate is a common dairy-based protein. Learn how it's made, how it differs from isolate, and who might want a lactose-free option instead.

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Getting enough protein supports muscle recovery, keeps you full and helps your body do its everyday work. If you've browsed protein powders, you've seen "whey protein concentrate" on a lot of labels. So what is it, and is it a good choice for you? Here's a quick look before you buy.

What is whey protein concentrate?

Whey protein concentrate is a protein-rich dairy by-product and one of the most common forms of whey in supplements. Whey is one of the two main proteins in milk; dairy protein is about 80% casein and 20% whey, and whey is digested and absorbed quickly.

How is whey protein concentrate made?

The simplified version:

  • Cows are milked.
  • The milk is made into cheese, and the liquid whey is separated from the curds.
  • The whey is filtered to remove much of the water, lactose and fat, then dried into a powder.

"Concentrate" means some of the non-protein parts have been removed, but not as many as in whey isolate. That's why concentrates keep more lactose and fat and why their protein content varies from product to product. Check the grams of protein per serving on the label rather than assuming. For a comparison of the three forms, see what whey protein is.

Is whey protein concentrate right for you?

A few things to consider:

What's a dairy-free alternative?

If you'd rather skip dairy, a plant protein blend gives you a complete amino acid profile without lactose. So Lean & So Clean provides 23g of complete organic plant protein per serving from pea and rice, with two servings of organic greens, no added sugar and no artificial sweeteners, fillers or gums.

Frequently asked questions

What is the difference between whey concentrate and whey isolate?

Both come from the liquid whey left over from cheesemaking. Isolate is filtered further to remove more lactose and fat, so it is higher in protein per gram; concentrate keeps more of both.

Does whey protein concentrate have lactose?

Yes. Concentrate keeps more lactose than isolate, so it is more likely to cause bloating or gas in people with lactose intolerance.

Is whey protein concentrate dairy-free?

No. It is made from milk and is not suitable for people with a milk allergy or for vegans.

How can I tell if a protein powder's label is accurate?

Look for independent testing. Programs such as Informed Protein verify that the protein on the label is in the product and screen for amino spiking.

References

  1. Bendtsen LQ, et al. Effect of dairy proteins on appetite, energy expenditure, body weight, and composition: a review of the evidence from controlled clinical trials. Adv Nutr. 2013;4(4):418-38. https://pubmed.ncbi.nlm.nih.gov/23858091/
  2. National Institute of Diabetes and Digestive and Kidney Diseases. Definition & facts for lactose intolerance. https://www.niddk.nih.gov/health-information/digestive-diseases/lactose-intolerance/definition-facts
  3. U.S. Food and Drug Administration. Food allergies. https://www.fda.gov/food/nutrition-food-labeling-and-critical-foods/food-allergies
  4. LGC. Informed Protein: protein content and label-claim certification. https://protein.wetestyoutrust.com/