Leanfit

WHEY PROTEIN™

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Leanfit WHEY PROTEIN™

Overall

#40 in

Protein Powder

according to Reddit Icon Reddit

User sentiment64% positive
37
7
14
Last updated: Apr 9, 2026

Reddit Reviews

Reddit IconAgreed_fact 1.0
r/CostcoCanadaCalling all gym rats! How’s this protein?
2 months ago

Leanfit whey protein isnt great for typical gym go-ers (EAA mix). They also don't mix all that well. Have to talk about the whey isolate, in which case this is better priced.

Reddit IconAnongamer63738 1.0
r/workoutProtein powder - Is Optimum Nutrition a quality product?
9 months ago

I use lean fit whey protein from costco as its cheapest where I live. In a 33 gram scoop, it has: 3.5g of fat, 24g of protein, 115mg cholesterol, 125mg sodium. Anyone know if that’s decent? Edit: just looked up the stats of the gold standard (55$ per kg) and the stats are so close to what I use and I’m paying 24$ per kg, and mines got less cholesterol which I’m pretty sure is a win.

Reddit IconBeeMaximum4009 1.0
r/CostcoCanadaBest protein at costco?
4 months ago

The leanfit is a whey blend. Meaning it mixes a whey concentrate and a whey isolate together. When you start getting into a straight whey isolate prices increase almost double. Isolate is more refined and packs more protein per scoop. For instance that leanfit is 72.7% protein per scoop when you jump up into an isolate product you can get into the 90% protein per scoop. Whether or not that’s important to you is your decision

Reddit Iconbrownincel240 1.0
r/CostcoCanadaThe BEST protein powder?
3 months ago

Leanfit (2nd version) is the cheapest but one scoop doesn't have enough leucine to trigger muscle protein synthesis completely. You need 2.5g leucine in a meal with protein to completely trigger MPS but leanfit only has 1.88g so you'd probably need a scoop and a half. Just something that I think is important if your trying to maximize progress like I'm atleast.

Reddit IconCapriano 1.0
r/CostcoCanadaCalling all gym rats! How’s this protein?
2 months ago

Get the other one that costco carries. White packaging. Leanfit Whey Protein. Almost same micros. Much cheaper and I find better tasting.

Reddit Iconchipdanger168 1.0
r/CostcoCanadaIs Leanfit Protein Powder Worth It?
9 months ago

Leanfit is not great when only mixed with water. The vanilla you can get away with but the chocolate is gross. People who say it's good are likely mixing it with milk. And I feel like any protein powder with milk is good lol

Reddit Iconddddhjxjx 1.0
r/nanaimoProtein Powder / Supplements?
2 months ago

Lean protein from Costco is my hookup.

Reddit IconDevelopmentWestern80 1.0
r/CostcoCanadaCalling all gym rats! How’s this protein?
2 months ago

Leanfit also mostly whey concentrate which is why it's cheaper.

Reddit IconEmanuelWilsonLover 1.0
r/CostcoCanadaBest Costco Protein Powder
about 2 months ago

Heads up OP that Leanfit whey vanilla was absolute trash in my and many others’ opinion. It’s “aggressively bland” which I know sounds weird but that’s the best I can describe it Leanfit whey chocolate tastes comparatively better

r/CostcoCanadaBest Costco Protein Powder
about 2 months ago

Heads up OP that Leanfit whey vanilla was absolute trash in my and many others’ opinion. It’s “aggressively bland” which I know sounds weird but that’s the best I can describe it Leanfit whey chocolate tastes comparatively better

Reddit Iconexpressionless420 1.0
r/CostcoCanadaAny good?
26 days ago

Idk if we're having the same stuff but leanfit vanilla is some of the nastiest whey protein I've had other than vegan proteins