The brand, graded

Optimum Nutrition

5 products on the index · average grade B (78/100) · 4 score A–B, 0 score D–F

Bavg 78
best of the lineup
AGold Standard 100% Isolate (Chocolate)85/100
worst of the lineup
CSerious Mass Weight Gainer (Chocolate)63/100
what Optimum Nutrition shouts
“24 g protein per scoop”
what the math says

Across the lineup the brand averages grade B. Genuinely good. Buy without squinting. Graded on usable protein, value per rupee and hidden sugar, not the headline gram count.

Every Optimum Nutrition product, best to worst

1AGold Standard 100% Isolate (Chocolate)Whey · 88 g/100 g · ₹129/20 g usable852AGold Standard 100% Whey (Double Rich Chocolate)Whey · 79 g/100 g · ₹121/20 g usable823APerformance Whey (Chocolate Milkshake)Whey · 71 g/100 g · ₹93/20 g usable824AGold Standard 100% Casein (Chocolate)Whey · 71 g/100 g · ₹155/20 g usable805CSerious Mass Weight Gainer (Chocolate)Mass gainer · 15 g/100 g · ₹148/20 g usable63
Compare every brand on the index →How much protein do you need?

Graded by math, not brands. Macros are label/brand-listed (June 2026); not medical advice.