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Whey Isolate — Representative isolate; micros vary by brandC
Proteins · #23 of 34

Whey Isolate

Representative isolate; micros vary by brand · Protein Powders

58/100C tier
Calories375
Protein80g
Fiber0g
Sodium2mg
Sugar—g

Graded C — 58 out of 100, #23 of 34 proteins. Clean label carries the score (96/100); omega-3 drags it down (0/100).

The short version: The purest protein-per-calorie on this list. Also the most processed.

The catch: Micronutrients are stripped in processing — this is protein, not nutrition.

Nutrition facts

Nutrition Facts

per 100g
Calories375
% Daily Value*
Total Fat 1g1%
Saturated Fat 0.5g2%
Cholesterol 10mg3%
Sodium 200mg9%
Dietary Fiber 0g
Protein 80g160%
Calcium 450mg35%
Iron 0.5mg3%
* % Daily Values use FDA label references (2,000-calorie diet). Micronutrient %DV uses the same reference values as our scoring. Values: USDA SR Legacy or the manufacturer/chain’s published label.

Why it scored 58

Clean label ×1596
Protein quality (DIAAS) ×2096
Protein ×2585
Micronutrients ×309
Omega-3 ×100

Each factor is scored 0–100, then combined with the weights shown. Read the full methodology.

Where it ranks

#23 of 34 in Proteins. Why per-100-calorie scoring changes everything →

More protein powders

Questions people ask

Is Whey Isolate healthy?

It grades C — 58 out of 100, #23 of 34 proteins in our system. The purest protein-per-calorie on this list. Also the most processed.

How many calories are in Whey Isolate?

375 calories per 100g. For context, that is scored per 100 calories here, which is why energy-dense foods can grade lower than you’d expect.

How is the nutrition score for Whey Isolate calculated?

Each factor (protein, fiber, micronutrients, and others depending on the category) is scored 0–100 against a fixed benchmark, then combined with published weights. See the score breakdown above or read the full methodology.

A note before you eat your screen: grades are computed from published nutrition data with a transparent formula. They are a starting point for thinking about food, not medical advice. Talk to your doctor or a registered dietitian about your diet.