Why Gold Standard 100% Casein™?
- Packed with 24 grams of slow digesting premium micellar casein protein to support muscle recovery.
- A slow digesting protein may be used to support muscle recovery at times you go without food such as while you sleep or between meals.
- 9 grams of naturally occurring Essential Amino Acids (EAAs) to support muscle recovery.■
- Active Lifestyle
- Sports Performance
- Strength Training
Optimum Nutrition® has been trusted to provide the highest quality in post-workout recovery, pre-workout energy, and on-the-go sports nutrition for over 30 years and in 90+ countries. After careful supplier selection, each ingredient is tested to assure exceptional purity, potency and composition. We hold ourselves to the highest production standards, all so you can unlock your body’s full potential.
■When taken over time with regular resistance training.
**Naturally Occurring Amino Acids
†Compared to Whey Protein
Suggested use
- 34 grams – Adult 1 scoop casein protein powder
- 10-12 fl oz – Cold water, milk or other beverage
- 30 seconds – Stir, shake or blend until dissolved
For best results, mix up your shake 30-60 minutes before bed, or have it between meals as an anytime snack in your balanced, high-protein diet.
Use 8-10 fl oz for a thicker consistency and 12-14 fl oz for a thinner consistency.
Gold Standard 100% Casein™ is designed for maximum mixability and superior drinkability.
For healthy adults, consume enough protein to meet your daily protein requirements with a combination of high protein foods and protein supplements throughout the day as part of a balanced diet and exercise program.
Other ingredients
Micellar casein, cocoa powder (processed with alkali), natural and artificial flavor, salt, gum blend (guar gum, acacia, xanthan gum), sunflower and/or soy lecithin, magnesium oxide, acesulfame potassium, sucralose, zinc sulfate monohydrate.
Contains: Milk and soy.
Warnings
Notice: Use this product as a food supplement only. Do not use for weight reduction.
Contents sold by weight not volume.
Store in a cool, dry place.
Serving scoop included, but may settle to the bottom during shipping.

Allergy Research Group, Mastica, Chios Gum Mastic, 240 Vegetarian Capsules
Bioray Inc., CytoFlora, Probiotic Immunity Tonic, 4 fl oz (118 ml)
New Chapter, Perfect Postnatal Whole-Food Multivitamin, 270 Vegetarian Tablets
Mushroom Wisdom, Lion's Mane Amyloban , 180 Vegetarian Tablets
Onnit, Shroom Tech Sport, Daily Energy Support, 84 Capsules
Ageless Foundation Laboratories, UltraMax Gold, Advanced Rejuvenation Formula with Alphatrophin, Valencia Orange, 22 Packets, 0.61 oz (17.4 g) Each
Optimum Nutrition, Platinum Hydro Whey, Turbo Chocolate, 3.61 lb (1.64 kg)
Nordic Naturals, ProOmega 2000-D, Lemon , 1,250 mg, 120 Soft Gels
Garden of Life, Primal Defense, Ultra, Ultimate Probiotic Formula, 180 UltraZorbe Vegetarian Capsules
Isopure, Zero Carb Protein Powder, Creamy Vanilla, 4.5 lb (2.04 kg)
Seeking Health, Histamine Digest, 90 Capsules
HealthForce Superfoods, Integrity Extracts, Cordyceps, 4.58 oz (130 g)
Dragon Herbs (Ron Teeguarden), Tonic Alchemy, The Ultimate SuperTonic Superfood Blend, 9.5 oz (270 g)
Optimum Nutrition, Platinum Hydro Whey, Velocity Vanilla, 3.52 lb (1.6 kg)
Mt. Capra, Goat Milk Colostrum Powder, 6 oz (174 g)
Sun Potion, Cordyceps Powder, Organic, 3.5 oz (100 g)
Dymatize, Elite Casein, Cinnamon Bun, 4 lb (1.8 kg)
RSP Nutrition, TrueFit, Grass-Fed Whey Protein Shake with Fruits & Vegetables, Chocolate, 4.32 lbs (1.960 kg)
Optimum Nutrition, Gold Standard 100% Casein, Cookies & Cream, 3.86 lb (1.75 kg)
RSP Nutrition, TrueFit, Grass-Fed Whey Protein Shake with Fruits & Vegetables, Cinnamon Churro, 4.14 lbs (1,880 g)
MegaFood, Men's Advanced Multivitamin, 120 Tablets
Optimum Nutrition, Gold Standard 100% Casein, Chocolate Peanut Butter, 3.97 lb (1.8 kg)
Amazing Grass, Greens Blend, Superfood, Chocolate, 1.76 lb (800 g)
Dymatize, ISO100 Hydrolyzed, 100% Whey Protein Isolate, Gourmet Vanilla, 5 lb (2.3 kg)
Optimum Nutrition, Gold Standard 100% Casein, Chocolate Supreme, 3.97 lb (1.8 kg)
Xtend, Pro, Whey Isolate, Vanilla Ice Cream, 5 lb (2.27 kg)
Symbiotics, Colostrum Plus, Powder, 21 oz (597 g)
NATURELO, Whole Food Multivitamin for Men 50+, 120 Vegetarian Capsules
Animal, Meal, Chocolate, 5 lbs (2.27 kg)
Amazing Grass, Greens Blend Superfood, The Original, 1.76 lb (800 g)
Planetary Herbals, AHCC , 250 mg, 60 Capsules
Real Mushrooms, Reishi, Mushroom Extract Powder, 200 Capsules
Sovereign Silver, Bio-Active Silver Hydrosol, 10 ppm, 32 fl oz (946 ml)
310 Nutrition, All-In-One Meal Shake, Vanilla Creme, 14.2 oz (403.2 g)
Xtend, The Original 7G BCAA, Lemon-Lime Squeeze, 2.78 lb (1.26 kg)
RSP Nutrition, TrueFit, Grass-Fed Protein Powder Drink Mix with Fruits & Veggies, Vanilla, 4.23 lbs (1,920 g)
Isopure, Low Carb Protein Powder, Dutch Chocolate, 4.5 lb (2.04 kg) 





