Optimum Nutrition Gold Standard Protein Shake Chocolate

Solvent base for the ready-to-drink shake.

Higher-purity milk protein with minimal lactose and fat; supports muscle recovery.

Complete dairy protein providing whey and casein fractions; higher bioavailability than any plant protein.

Fast-digesting whey fraction supporting muscle protein synthesis.

Slow-digesting casein-derived protein; complete amino acid profile but more processed than native casein.

Dutch-processed cocoa has reduced flavanol and antioxidant content compared to natural cocoa. Cocoa itself is also a known cadmium accumulator.

Refined seed oil high in inflammatory omega-6 linoleic acid. Adds processed fat with little nutritional value in a protein product.

Proprietary flavor blend; can hide dozens of synthetic aroma chemicals and phthalate carriers under FDA trade-secret rules.

Wood-pulp-derived thickeners used to maintain shake consistency. Inert and safe at typical concentrations but a processed-product marker.

Synthetic micronutrient fortification supporting marketing claim of 24 vitamins and minerals.

Industrial phosphate emulsifiers. Excess phosphate intake from processed foods is associated with cardiovascular and kidney concerns.

Dairy fat for mouthfeel; small contribution to overall fat content.

Sodium for flavor balance; minimal contribution to total sodium intake.

Chlorinated artificial sweetener linked to disruption of gut microbiome, potential insulin response issues, and generation of harmful chlorinated compounds during metabolism.

Artificial sweetener (Ace-K) with limited long-term safety data. Often paired with sucralose to mask aftertaste — a double artificial sweetener load.

Controversial thickener extracted from red seaweed. Linked to gastrointestinal inflammation, intestinal lesions, and potential tumor promotion in animal studies. Banned in infant formula in the EU.