Optimum Nutrition – Gold Standard Gainer. Premium Protein & Carb Recovery Formula for Serious Mass Gains. Fuel your growth with the gold standard of weight gainers. Gold Standard Gainer by Optimum Nutrition is engineered for athletes and hard gainers who demand quality, not just calories. With 55g of protein from high-quality isolate sources, 112g of clean carbohydrates, and MCTs, chia, and flaxseed fats, this powerhouse formula delivers 760 calories per serve to support size, strength, and serious performance recovery.

Unlike typical gainers, this advanced blend includes Carb10®—a low-GI pea-sourced carbohydrate that delivers clean energy without the insulin spike. It’s easy to digest, mixes effortlessly in a shaker, and supports high-performance lifestyles without the bloat.

Why You’ll Love It

• 55g premium protein from hydrolyzed whey, whey isolate, whey concentrate & milk isolate
• 112g of carbs from oat flour, pea starch, potato starch & Carb10®
• 760 calories per serve to support muscle gain and energy replenishment
• Good fats from MCTs, flaxseed & chia for energy and recovery support
• Carb10® – low-GI carb for sustained fuel without blood sugar spikes
• Low sugar, high-quality blend ideal for lean bulking
• Informed Choice certified – trusted by athletes worldwide
• No blender required – mixes easily in a shaker bottle

What’s Inside?

• Hydrolyzed Whey Protein – fast-digesting, easy on the stomach
• Whey Protein Isolate (WPI) – rich in EAAs for lean muscle building
• Whey Protein Concentrate (WPC) – promotes muscle recovery over time
• Milk Protein Isolate (MPI) – slow-releasing protein to support overnight recovery
• Carb10® Pea Carbohydrate – low-GI, gut-friendly fuel source
• MCT Oil Blend – fast energy and metabolism support
• Flax & Chia Seed Fats – rich in omega-3 and recovery-supporting nutrients

How to Use

• Between Meals: Mix 1 scoop to help maintain a calorie surplus
• Post Workout: Mix 1–2 scoops 30–45 minutes after training for recovery
• Before Bed: Mix 1 scoop 45–60 minutes before sleep to fuel overnight muscle repair
• Combine with a high-protein diet and regular training for optimal results

Who It’s For

Perfect for hard gainers, bodybuilders, athletes, and high-energy individuals who struggle to meet calorie demands through food alone. Also ideal for those needing clean, balanced mass-gain nutrition that fuels results—not fat gain.

Build more. Recover faster. Perform better. Gold Standard Gainer is your ultimate partner for clean bulk and size without compromise.