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Protein, scored by what's actually in it

We score every protein by how much of each scoop is actually protein — not fillers, carbs, or fat.

Find Protein!
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Why Gaindex

Protein Density Score

Protein Density Score

Protein grams ÷ serving size. Higher means less filler in every scoop.

Advanced Filters

Advanced Filters

Filter by sweetener, blend type, NSF certified, vegan, and more.

Community Reviews

Community Reviews

Real ratings from lifters on taste, mixability, and value. Be the first to review.

Top Picks

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Whey Protein Isolate – French Vanilla

Whey Protein Isolate – French Vanilla

Transparent Labs

pure isolateInformed Sport
★ —80% protein
Gold Standard 100% Whey – Double Rich Chocolate

Gold Standard 100% Whey – Double Rich Chocolate

Optimum Nutrition

concentrate blendInformed Sport
★ —77.4% protein
ISO100 – Chocolate

ISO100 – Chocolate

Dymatize

pure isolateInformed Sport
★ —80.7% protein
CBUM Itholate – Birthday Cake

CBUM Itholate – Birthday Cake

RAW Nutrition

pure isolateInformed Sport
★ —75.8% protein
Organic Protein – Natural Unsweetened

Organic Protein – Natural Unsweetened

Orgain

★ —48.8% protein

Latest

RYSE × Uncrustables
NewApr 2026

RYSE × Uncrustables

RYSE teases a possible collab with Smucker's for a PB&J Uncrustables-flavored Loaded Protein. No official drop date yet, but the internet is already losing its mind.

View on Instagram →
Ghost Whey × General Mills
NewApr 2025· 3 flavors

Ghost Whey × General Mills

Ghost teams up with General Mills for three cereal milk flavours: Lucky Charms, Trix, and Cocoa Puffs.

See all flavors →

Recent Reviews

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