
Optimum Nutrition
Gold Standard 100% Whey Protein Powder
Trusted all-rounder, but price hikes and quality decline concern.
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Nutricost Been using it for years and I’m very happy with the amount of protein, the flavor, and the affordability. https://a.co/d/1DMxrn2
Nutricosts strawberry milkshake flavor is nasty. I bought 2 tubs of this shit
Nutricost Chocolate Peanut Butter Isolate is my choice. Tastes really good, is as “reasonable” as protein gets these days, and is third-party tested as well.
Nutricost whey isolate milk chocolate has become my go-to.
Nutricost Whey Protein Powder is the cheapest that I've come across - 5 lbs container, 69 servings, 25g protein per serving, which makes it $2.79 for 100g protein.
There are a few facets to this: cost, calories, lead content. It's also worth noting that different products have different serving sizes, which each have differing protein and calorie content. It's difficult to compare across products, for that reason. I've been doing research on products and have settled on "per 100g protein" as a metric. Here are a few suggestions: * Cheapest: Nutricost Whey Protein Powder, $2.79 and 480 calories/100g protein. No lead testing. * With lead testing: Optimum Nutrition Gold Standard, $4.18 and 500 calories/100g protein, 1.2 mcg lead/100g protein (low) * Lowest calories: Isopure Zero Carb, $6.13 and 400 calories/100g protein. No lead testing. * With lead testing: Muscle Feast Grass-Fed, $6.10 and 423 calories/100g protein, 0 mcg lead/100g protein (very low) I hope this helps! If you'd like more detail about a particular product, or in general, let me know!
Bingo! This is the cheapest I've found - $2.79 per 100g of protein, and at the lower end of calories (480 calories per 100g protein).
I switched to Nutricost whey isolate unflavored due to price. 5lbs is like $85 on Amazon. I don’t notice a huge difference, but I really only mix it with chocolate breakfast essentials and milk so not sure I can be considered a protein powder expert.

Optimum Nutrition
Gold Standard 100% Whey Protein Powder
Trusted all-rounder, but price hikes and quality decline concern.

Dymatize (BellRing Brands)
ISO100 Hydrolyzed Protein Powder
High-quality hydrolyzed isolate, great taste, but pricey with sucralose concerns.

Transparent Labs
Grass-Fed Whey Protein Isolate
Clean, third-party tested isolate; premium price for quality.
Kirkland Signature (Costco)
Whey Protein
Budget king; great value, but clumpy with artificial taste concerns.

Oath Nutrition
Clear Whey Protein Powder
Refreshing, juice-like fruit flavors; pricey, low carb, but gentle.

Ranked #1
PEScience - Select Protein

Ranked #1
Optimum Nutrition - Gold Standard 100% Whey Protein Powder

Ranked #1
Optimum Nutrition - Gold Standard 100% Whey Protein Powder

Ranked #1
Optimum Nutrition - Gold Standard 100% Whey Protein Powder

Ranked #1
Oath Nutrition - Clear Whey Protein Powder

Ranked #1
Equip - Prime Protein