Ingredients and Usage Recommendations: ON Gold Standard 100% Casein by Optimum Nutrition is a slow-digesting, anti-catabolic protein formula designed to support overnight recovery, muscle maintenance, and long-lasting amino acid delivery. Unlike fast-digesting whey proteins that absorb quickly after workouts, casein proteins coagulate in the stomach and are digested over several hours — making them ideal for use before sleep or between meals to help prevent muscle breakdown. Each serving delivers 24 g of micellar casein — the highest quality form of slow-release casein — plus 5 g of naturally occurring BCAAs, and nearly 10 g of essential amino acids. The sustained absorption profile makes this product a powerful tool for long periods without food intake, such as fasting, travel, or overnight recovery. The 1816 g format is suitable for regular athletes, professionals, and sports teams who value consistent supply and reduced cost per serving. Ingredients (Latin names, listed in descending order by weight):
Caseinum Micellare (Micellar Casein)
Aromata Naturalia et Artificialia (Natural and Artificial Flavors)
Cacao Processus (Processed Cocoa – in chocolate-based flavors)
Colorantium Naturale (Natural Color – varies by flavor)
Usage Recommendations: Mix 1 scoop (approx. 32–34 g) with 300–400 ml of cold water, milk, or another beverage of choice. Shake, stir, or blend until fully dissolved. Ideal timing for use:
Before bedtime – to provide a steady amino acid supply during sleep
Between meals – to bridge long periods without protein intake
As a high-protein snack – to curb catabolism during caloric restriction or cutting phases
Due to its slow digestion rate, casein is not ideal for post-workout unless combined with a fast-absorbing protein source. Storage: Close the lid tightly after each use and store in a cool, dry place. Daily Dosage: 1–2 servings daily depending on protein needs, goals, and dietary structure Product Benefits:
24 g of Slow-Digesting Protein Per Serving:
Made with 100% micellar casein, known for its ability to release amino acids gradually over up to 8 hours. Perfect for nighttime recovery and extended protein support.
Supports Anti-Catabolic Activity:
Helps prevent muscle tissue breakdown during long periods of fasting, such as sleep or restricted eating windows.
Satiating and Thick Texture:
Naturally thick and creamy when mixed, casein provides a feeling of fullness — beneficial for weight management or appetite control.
Rich in BCAAs and EAAs:
Contains approximately 5 g of branched-chain amino acids and over 9–10 g of essential amino acids per serving to stimulate protein synthesis and muscle preservation.
High Protein, Low Fat and Sugar:
Low in sugars (≈1 g or less) and fats (≈1 g), supporting lean mass development without unnecessary calories.
Flavor Variety & Smooth Mixability:
Available in popular flavors like Chocolate Supreme, Vanilla, and Cookies & Cream. Mixes easily in water or milk without clumping when prepared properly.
Trusted Quality by Optimum Nutrition:
Made in the USA under strict quality control. Each batch is tested for purity, consistency, and safety — making it one of the most reliable slow-protein products available.
Who Should Use This Product:
Athletes seeking overnight muscle support
Individuals who train in the evening or fast overnight
People on intermittent fasting or low-calorie diets
Those who need protein between meals
Fitness professionals aiming for muscle preservation while losing fat
Active adults who want long-lasting satiety
Manufacturer: Optimum Nutrition, USA A Division of Glanbia Performance Nutrition Warning:
Do not use the food supplement as a substitute for a varied diet.
It is important to follow a varied and balanced diet and lead a healthy lifestyle.
Do not exceed the recommended daily dose; this is a warning not to use the food supplement as a substitute for a varied diet.
Keep out of reach of children.
Not to be used by children.
Not to be used by pregnant or breastfeeding women.
Contains milk and soy. May contain traces of wheat, eggs, or nuts depending on production line.
