• Essential amino acid delivery
• Supports energy, focus, and muscle recovery
• Promotes nitric oxide production
• Caffeine derived from natural sources
• Fruit Fusion flavor

Looking for the perfect pre-workout boost or anytime pick-me-up? ESSENTIAL AMIN.O. ENERGY by Optimum Nutrition supports muscle recovery before, during, and after exercise with 5g of micronized free-form amino acids—plus 100mg of caffeine to promote energy and focus.

Frequently Asked Questions

What are essential amino acids?

Essential amino acids (EAAs) are amino acids that your body can’t produce enough of on its own, including leucine, isoleucine, valine, histidine, lysine, methionine, phenylalanine, threonine, and tryptophan. EAAs support muscle growth and recovery.

What are micronized free-form amino acids?

Micronized free-form amino acids are single amino acids that are already in a pre-digested form for faster absorption by the body.

Why is nitric oxide important?

Nitric oxide plays a key role in exercise endurance because it’s a vasodilator. A vasodilator is a substance that supports the dilation of blood vessels for increased blood flow.

• Essential amino acid delivery
• Supports energy, focus, and muscle recovery
• Promotes nitric oxide production
• Caffeine derived from natural sources
• Orange Cooler flavor

Looking for the perfect pre-workout boost or anytime pick-me-up? ESSENTIAL AMIN.O. ENERGY by Optimum Nutrition supports muscle recovery before, during, and after exercise with 5g of micronized free-form amino acids—plus 100mg of caffeine to promote energy and focus.

Frequently Asked Questions

What are essential amino acids?

Essential amino acids (EAAs) are amino acids that your body can’t produce enough of on its own, including leucine, isoleucine, valine, histidine, lysine, methionine, phenylalanine, threonine, and tryptophan. EAAs support muscle growth and recovery.

What are micronized free-form amino acids?

Micronized free-form amino acids are single amino acids that are already in a pre-digested form for faster absorption by the body.

Why is nitric oxide important?

Nitric oxide plays a key role in exercise endurance because it’s a vasodilator. A vasodilator is a substance that supports the dilation of blood vessels for increased blood flow.

• Essential amino acid delivery
• Electrolyte support
• Supports energy, focus, and muscle recovery
• Caffeine derived from natural sources
• Juicy Strawberry flavor

Looking for the perfect pre-workout boost or anytime pick-me-up? ESSENTIAL AMIN.O. ENERGY + ELECTROLYTES by Optimum Nutrition supports muscle recovery before, during, and after exercise with 5g of micronized free-form amino acids. BONUS: it’s got 100mg of caffeine for energy and electrolytes to help replenish what’s lost with sweat.

Frequently Asked Questions

What are essential amino acids?

Essential amino acids (EAAs) are amino acids that your body can’t produce enough of on its own, including leucine, isoleucine, valine, histidine, lysine, methionine, phenylalanine, threonine, and tryptophan. EAAs support muscle growth and recovery.

What are micronized free-form amino acids?

Micronized free-form amino acids are single amino acids that are already in a pre-digested form for faster absorption by the body.

• 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.