When to take it
After training or any time to meet daily protein needs; ideally spread protein over 3–4 meals.
← All supplements
Amino acidsStrong evidence
Whey protein
Also known as: whey, WPC, WPI
Whey protein is obtained from whey during cheese making and is one of the highest-quality proteins, rich in leucine. It digests quickly, making it practical for topping up protein after training or during the day.
What it is used for
- building and maintaining muscle with training – strong evidence (protein has an EFSA-approved claim)
- post-training recovery – moderate evidence
- satiety and appetite control – moderate evidence
- maintaining muscle in older age – moderate evidence
Forms and how they differ
concentrate (WPC 80)
about 70–80% protein, some lactose and fat, best value
isolate (WPI 90)
over 85–90% protein, minimal lactose
hydrolysate
partly pre-digested, fastest absorption, more bitter, pricier
grass-fed
from pasture-fed cows; the nutritional difference is small
Pairs well with
Creatine, fruit, oats; water or milk.
Do not combine / separate
With lactose intolerance prefer isolate. Count dietary protein so you do not exceed needs unnecessarily.
Watch out for
Not suitable with cow's milk protein allergy. With kidney or liver disease, discuss higher protein intake with your doctor. In pregnancy a standard protein is usually fine, but check the additives.
Safety
Safe for healthy people within normal total protein intake; do not exceed the label dose.
Practical tip
Check protein per 100 g and the amino-acid profile – a good product has at least 70% protein.
Products containing Whey protein 11
Whey protein organic concentrateorganic concentrate
Whey protein clear isolateclear isolate
Whey protein + Collagenblend
Whey protein + Ashwagandhablend
Whey protein hydrolysatehydrolysate
Whey protein isolateisolate
Whey protein lactose-freelactose-free
Whey proteinclear hydrolyzed isolate
Whey protein concentrateconcentrate
Whey protein 30 gnative whey concentrate · 30 g / serving
Whey protein grass-fed concentrate/isolategrass-fed concentrate/isolate
How to read the evidence rating
Strong evidenceModerate evidenceWeak evidenceNo evidence
Strong = several good human studies or official recommendations; moderate = promising but smaller studies; weak = few studies or mixed results; no evidence = claims not confirmed.
Combination check
Select the supplements you take and, if relevant, your medicines. We show what interferes, what needs a time gap and what to watch out for.
Check Whey protein with othersWhich supplements do you actually need?
Fénix Methode picks them from your blood results and schedules when to take what – no needless purchases.
From the same group
Acetyl-L-carnitineWeak evidenceAlmond proteinWeak evidenceAmino acid complexWeak evidenceBCAAWeak evidenceBeef proteinModerate evidenceCaseinStrong evidence
Important notice
This information is educational and does not replace advice from a doctor or pharmacist. We do not give medicine dosages. Supplements are no substitute for a varied diet; if pregnant, breastfeeding, ill or on medication, consult a doctor first.