Optimum Nutrition Gold Standard 100% Casein
by Optimum Nutrition
"Slow-digesting micellar casein for overnight muscle recovery — the gold standard in nighttime protein"
Overview
Optimum Nutrition Gold Standard Casein provides 24g of slow-digesting micellar casein protein per serving. Unlike whey protein which digests quickly, casein forms a gel in the stomach and releases amino acids gradually over 6-8 hours, making it ideal for overnight muscle protein synthesis. The formula delivers 5g of BCAAs and 5g of glutamine per serving. ON Gold Standard Casein has been the category leader in casein protein for over a decade, trusted by bodybuilders and athletes who want to maximize their recovery window during sleep.
Key Ingredients
| Ingredient | Amount |
|---|---|
| Micellar Casein | 24 g |
| BCAAs | 5 g |
| Glutamine & Glutamic Acid | 5 g |
Pros & Cons
What We Like
- Slow-release protein (6-8 hours)
- 24g protein per serving
- Gold Standard quality from ON
- Thick, pudding-like texture
- Ideal for overnight recovery
What Could Be Better
- Thicker and harder to mix than whey
- Contains milk allergens
- More expensive per serving than whey
- Only 28 servings per container
Who Is This For?
Best For
- Nighttime protein supplementation
- Bodybuilders in cutting phase
- Those wanting sustained amino acid release
- Between-meal protein
Not Ideal For
- Lactose-intolerant individuals
- Those wanting fast-absorbing protein
- Post-workout immediate use
Our Verdict
ON Gold Standard Casein remains the king of nighttime protein. The slow-digesting micellar casein provides a sustained amino acid drip that whey simply can't match. Mix it thick before bed for a protein pudding that feeds your muscles while you sleep.
Alternatives to Consider
No direct alternatives listed for this product yet.