Whey Protein Isolate (WPI)
90.0gprotein / 100g370 cal · 1.0g fat · $$$ · Quality 1.0
Whey Protein Hydrolysate (WPH)
85.0gprotein / 100g380 cal · 1.5g fat · $$$$ · Quality 1.0
There's a meaningful protein-density gap here: Whey Protein Isolate (WPI) runs 90.0g per 100g against Whey Protein Hydrolysate (WPH)'s 85.0g, roughly 5.0g more per equal weight.
Protein quality is essentially matched between the two — both land in a similar tier for amino acid completeness.
Budget-wise, Whey Protein Isolate (WPI) runs meaningfully cheaper per typical serving ($$$) than Whey Protein Hydrolysate (WPH) ($$$$).
These two are closer than the comparison headline suggests. Either Whey Protein Isolate (WPI) or Whey Protein Hydrolysate (WPH) works well in most contexts — let cost, prep time, and personal preference decide rather than the macros.
Full nutrition comparison
| Per 100g | Whey Protein Isolate (WPI) | Whey Protein Hydrolysate (WPH) |
|---|---|---|
| Protein | 90.0g | 85.0g |
| Calories | 370 | 380 |
| Fat | 1.0g | 1.5g |
| Carbs | 1.5g | 2.0g |
| Fiber | 0.0g | 0.0g |
| Quality score | 1.0 | 1.0 |
| Relative cost | $$$ | $$$$ |
| Prep time | 1 min | 1 min |
Frequently asked
Which has more protein, whey protein isolate (wpi) or whey protein hydrolysate (wph)?
Whey Protein Isolate (WPI) has 90.0g of protein per 100g compared to Whey Protein Hydrolysate (WPH)'s 85.0g.
Which is lower in calories?
Whey Protein Isolate (WPI) is lower in calories per 100g, at 370 vs the other's 380.