• Supports muscle building and weight gain goals
• 650 calories, 60g of protein, and 81g of carbs per serving
• Delivers more than 20 vitamins & minerals
• Double Chocolate flavor

GOLD STANDARD^® PRO GAINER is a high-protein weight gain formula that delivers calories that count during recovery. Each serving of this Double Chocolate protein powder provides 650 calories, 60g of premium protein, and 81g of carbohydrates to help boost caloric intake, build and maintain muscle, and restore energy levels.

• Supports muscle building and weight gain goals
• 1,250 calories, 50g of protein, and 252g of carbs per serving
• Delivers 25 vitamins & minerals, creatine, and glutamine
• Chocolate flavor

If you’re aspiring to be bigger, have a highly active metabolism, weaker appetite, or on-the-run lifestyle, SERIOUS MASS™ by Optimum Nutrition is for you. This Chocolate weight gain powder packs 1,250 calories, 50g of protein, and 252g of carbohydrates in every serving to help boost calorie intake, support muscle building, and fuel intense workouts.

• Helps build and maintain muscle
• Supports endurance and recovery
• Instantized powder for easy mixing
• Double Rich Chocolate flavor

GOLD STANDARD 100% WHEY by Optimum Nutrition fuels your body with 24g of high-quality whey protein derived primarily from whey protein isolate, plus 5.5g of naturally occurring BCAAs to support muscle building, maintenance, endurance, and recovery.

Frequently Asked Questions

What is whey protein isolate?

Whey protein isolate (WPI) has the highest concentration of protein and BCAAs, while having less carbs, cholesterol, and fat compared to other whey proteins. WPI is also low in lactose and easy on your digestive tract.

What are BCAAs?

Branched-chain amino acids (BCAAs) include leucine, isoleucine, and valine. They support muscle growth and reduce muscle fatigue.

• 55g of protein, 228g of carbs, and 1,160 calories per serving
• Performance blend featuring creatine, glutamine, and BCAAs
• Chocolate flavor

If maximum mass is your destination, lifting alone won't cut it. Fuel your journey to huge gains with BodyTech Prime Mass High Protein Weight Gainer. This high-calorie supplement serves up 55g of high-quality whey and casein protein, plus 228g of energy-producing carbs to help you achieve the muscle mass you want.

Each serving of this nutrient-dense Chocolate-flavored powder has 25 vitamins and minerals, plus a complete amino acid profile to support you before, during, and after your workout.