Form Comparison

Hydrolyzed Whey Protein vs Whey Protein Concentrate

How hydrolyzed whey protein and whey protein concentrate differ in potency, absorption, tolerance, and cost.

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Quick verdict. Choose concentrate for muscle gain and protein targets: it is the cheapest per gram, and hydrolysate's faster peptide appearance has not produced more muscle than intact whey. Hydrolyzed whey is worth its price and bitterness only when a medical or GI problem calls for pre-digested protein. Neither is safe with milk allergy, and concentrate holds enough lactose to bloat people who are intolerant.

Side by Side

Hydrolyzed Whey Protein Whey Protein Concentrate
Absorption High High
How it is absorbed Pre-digested by enzymes into peptides, which appear in blood slightly faster. Faster appearance has not translated into meaningfully greater muscle gain over intact whey. Intact milk whey proteins digested to amino acids and small peptides. Rapidly digested and rich in leucine, which drives muscle protein synthesis.
Typical dose 20-40 g protein per serving 20-40 g protein per serving
Common uses hypoallergenic infant and medical formulas, GI intolerance of intact protein meeting daily protein targets, post-exercise protein
Side effects Bitter taste. Partial hydrolysis does not make it safe for milk allergy. Contains some lactose; can cause bloating in lactose intolerance.
Cost High Low
Also called whey hydrolysate, WPH WPC, WPC80

When to Choose Hydrolyzed Whey Protein

Choose hydrolyzed whey protein when you need pre-digested protein for a medical or GI reason. Extensively hydrolyzed whey is used in hypoallergenic formulas under medical direction.

Hydrolyzed Whey Protein

Faster absorption, worse taste, higher price, and no proven long-term advantage.

What to look for: Reserve for specific GI tolerance problems; isolate does the same job for less.

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When to Choose Whey Protein Concentrate

Choose whey protein concentrate when you tolerate lactose and want the lowest cost per gram of protein. Protein content varies widely by grade; WPC80 (about 80% protein by weight) is the usual supplement grade.

Whey Protein Concentrate

The value choice. Its lactose content is low enough for most people with mild intolerance.

What to look for: At least 75% protein by scoop weight, a published amino acid profile, and no free amino acids in the ingredient list.

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Products on Titrate

The Protein Powder category in Titrate's index holds 5,888 labels from the NIH Dietary Supplement Label Database, 3,475 of them currently on market, out of 214,745 labels indexed in total.

Open supplement search

Supplement Search loads one category at a time. Choose the Protein Powder tab, then type a form such as "hydrolyzed" under Must contain, or a form to avoid under Must not contain.

Related

References

Institute of Medicine. National Academies Press, 2005. Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids.

Moore DR, et al. Ingested protein dose response of muscle and albumin protein synthesis after resistance exercise in young men. Am J Clin Nutr. 2009;89(1):161-168.

Tang JE, et al. Ingestion of whey hydrolysate, casein, or soy protein isolate: effects on mixed muscle protein synthesis at rest and following resistance exercise in young men. J Appl Physiol. 2009;107(3):987-992.

Schoenfeld BJ, Aragon AA, Krieger JW. The effect of protein timing on muscle strength and hypertrophy: a meta-analysis. J Int Soc Sports Nutr. 2013;10(1):53.

Macnaughton LS, et al. The response of muscle protein synthesis following whole-body resistance exercise is greater following 40 g than 20 g of ingested whey protein. Physiol Rep. 2016;4(15):e12893.

Jäger R, et al. International Society of Sports Nutrition Position Stand: protein and exercise. J Int Soc Sports Nutr. 2017;14:20.

Morton RW, et al. A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. Br J Sports Med. 2018;52(6):376-384.