PlainPill

Whey vs Whey Protein Isolate

Short answer: Overall, Whey gets more positive reports (88% vs 83%).

Whey has 148 meta-analyses and 998 randomized trials on PubMed; Whey Protein Isolate has 1 and 80.

Based on 21 reports about Whey and 39 about Whey Protein Isolate. Not medical advice.

Whey
Supplement
Whey Protein Isolate
Supplement
Users say it helped88%helped9 reports · few reports83%helped18 reports · few reports
Verdict
Mostly positive
Mostly positive
ResearchAResearch: StrongBResearch: Moderate
Meta-analyses / RCTs148 / 9981 / 80
Mainly used for
Performance
% reporting improvement
—100% (6)
Common side effectsNone reportednausea, stomach issues
Typical dose reported24 g protein per scoop20 g / 2x daily
Whey
Latest review conclusion

Dietary protein supplementation significantly enhanced changes in muscle strength and size during prolonged RET in healthy adults. Increasing age reduces and training experience increases the efficacy of protein supplementation during RET. With protein supplementation, protein intakes at amounts greater than ~1.6 g/kg/day do not further contribute RET-induced gains in FFM.

Br J Sports Med, 2018 ↗
What a user said
“ON costs which to this day is still the best out there and the quality is equal or i dare say better nowadays”
Full Whey profile →
Whey Protein Isolate
Latest review conclusion

Caution must be considered regarding these results as controlled, non-randomized, trials were included in the analysis, which may have contributed to high risk of bias. Future research should focus on protein types and the impact they have on kidney disease progression and inflammation markers.

Nutrients, 2021 ↗
What a user said
“If you get the quality whey isolate from true nutrition or another popular bulk powder site, you can easily find the difference. For me, isolate dissolves much faster, doesn't give stomach problems”
Full Whey Protein Isolate profile →

Related comparisons

Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate