1
Optimum Nutrition
Gold Standard 100% Whey Protein Powder
76% positive of 995 users
Trusted all-rounder, but price hikes and quality decline concern.
Whey Protein
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TL;DR: Budget king; great value, but clumpy with artificial taste concerns.
Sentiment score72% positive
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Top Pros
Top Cons
Last updated: Jun 30, 2026
Reddit Reviews
452 of 452 reviews
1chester555I added a scoop of the vanilla one to my brownies and a scoop to my banana chocolate chip muffins. It’s improved the taste and added protein to my homemade goodies. Love it.
2JZMX83I didn't like it, upset my stomach. I stick with ON
303uruCostco Kirkland protein powder mixed in milk fits the bill. Much cheaper and tastes good.
3BallCornerPocketGet Kirkland if you have it. Close enough and cheaper.
4scoreand20yearsagoI’ve only seen whey under the Kirkland brand
4-snizzle-dizzleI think it tastes fine. Worth the discount
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 → 
