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Optimum Nutrition
Gold Standard 100% Whey Protein Powder
76% positive of 995 users
Trusted all-rounder, but price hikes and quality decline concern.
Micellar Casein Protein Powder
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Sentiment score75% positive
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Last updated: Jun 30, 2026
Reddit Reviews
44 of 44 reviews
abestractI think it’s like 4 ingredients, best protein powder I’ve had.
anonymousaspossableThis one is far superior and no sucralose, and the same price as the kirkland until the 30th. * Edit: pic didnt attach Its the levels brand with a cow on the bag.
Im gonna edit. Its the same price as the Kirkland while on sale.my mistake.
I ordered more vanilla (very tasty) and the chocolate which I haven't had yet.
Levels is fantastic. Im ordering more now because it's om sale.
Avocolada178Levels protein, got it from costco in both vanilla and chocolate. Not the best flavor but it has super clean ingredients
azentropyNot my favorite in terms of taste. Recently did my own taste test and this is the order I ranked Vanilla. Dymatize ISO 100 9/10 ON 8/10 Ascent 6/10 Levels 5/10 Muscle Milk 4/10 That said, the macros are good and the price is good. I mix it with peanut powder and I like it much better that way.
BlemsrCheck out Levels protein. They claim to be third party tested, with minimal ingredients. I've enjoyed the flavors so far all except strawberry.
Both-Activity6432I mostly like it, but the MFE does add a weird after taste for me. Not terrible, but cannot mix it within anything like milk or it becomes sickly sweet IMO. I tried to do a mocha and 🤢
Top Protein Powder on Reddit
2
Dymatize (BellRing Brands)
ISO100 Hydrolyzed Protein Powder
88% positive of 185 users
High-quality hydrolyzed isolate, great taste, but pricey with sucralose concerns.
3
Transparent Labs
Grass-Fed Whey Protein Isolate
96% positive of 80 users
Clean, third-party tested isolate; premium price for quality.
4
Kirkland Signature (Costco)
Whey Protein
72% positive of 452 users
Budget king; great value, but clumpy with artificial taste concerns.
5
Oath Nutrition
Clear Whey Protein Powder
97% positive of 68 users
Refreshing, juice-like fruit flavors; pricey, low carb, but gentle.
Rankings by Use Case
Best for Baking
Ranked #1
PEScience - Select Protein
Culinary-focused users who incorporate protein into muffins, pancakes, and breads rather than drinking shakes.
See rankings → Best for Curbing hunger
Ranked #1
Optimum Nutrition - Gold Standard 100% Whey Protein Powder
Individuals using protein to manage appetite between meals or as a bridge to prevent overeating during weight loss.
See rankings → Best for Hardgainers
Ranked #1
Optimum Nutrition - Gold Standard 100% Whey Protein Powder
Underweight individuals or those with very high metabolisms who struggle to consume enough solid food to maintain a caloric surplus.
See rankings → Best for Heavy metal safety
Ranked #1
Optimum Nutrition - Gold Standard 100% Whey Protein Powder
Health-conscious users concerned about the long-term cumulative effects of heavy metal exposure in supplements.
See rankings → Best for Natural taste & texture
Ranked #1
Oath Nutrition - Clear Whey Protein Powder
Individuals who find traditional protein textures 'gag-inducing.'
See rankings → Best for Sensitive stomachs
Ranked #1
Equip - Prime Protein
Users who experience bloating, gas, or stomach pain from standard dairy-based or highly processed protein supplements.
See rankings → 
