Note

This product contains 2 disputed ingredients: Amino Blend, Green Tea Leaf Extract. Evidence is mixed or doses are undisclosed — see the ingredient science section below for details.

Optimum Nutrition
Optimum Nutrition

Essential AMIN.O.ENERGY

★★★★★
4.5 / 5·6 reviews at The FeedRecovery

Rating and review count from The Feed's customers. Pello community reviews are submitted separately on Pello.

$25.99for 30 servings· $0.87 per serving
Where to buy

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Used for: post-workout recovery and building muscle
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Optimum Nutrition
Optimum NutritionBudgetFounded 1986

Founded in 1986.

View all 3 Optimum Nutrition products →
Strengths
  • ✓2 science-backed ingredients
Watch out for
  • →2 disputed ingredients — check label
6
Reviews at The Feed
0
Quality standards
5
Key ingredients
Pello Score™

Average

Meets the basics — check individual pillar scores

47
Science9/25
Transparency14/25
Value10/20
Athlete experience12/20
Quality2/10

Independent analysis No brand partnerships

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Ingredient science

Cross-referenced with PubMed & Examine.com

✓No flagged ingredients detected
Sodium10mg
✓ Proven

Sodium is the main electrolyte lost in sweat; replacing it supports fluid balance in long or hot sessions.

Amino Blend5g
Disputed

A blend of amino acids; check it provides the essential ones at useful doses, or a protein serving does the same job.

Caffeine100mg
✓ Proven

Around 3mg per kg of body weight reliably improves endurance performance and focus; count all caffeine sources across the day.

Green Tea Leaf Extract50mg
Disputed

Contains antioxidants and a little caffeine; evidence for performance or recovery is limited.

Green Coffee Bean Extract10mg
~ Likely

A natural source of caffeine; count it towards your total caffeine intake. Caffeine at around 3mg per kg of body weight improves endurance.

Quality standards

What these mean →

0 of 5 standards Pello tracks · No third-party banned-substance testing listed

Tested for sport

  • NSF Certified for Sport
  • Informed Sport
  • Cologne List

Food & sourcing

  • USDA Organic
  • Non-GMO Project Verified

Diet claims

  • Vegan: not stated

    Brand or retailer label claim, not a certification.

  • Gluten-free: yes

    Brand or retailer label claim. In the US a gluten-free label means under 20 ppm gluten.

  • Dairy-free: yes

    From the allergen list, where one is available.

Certifications are as listed on the product's page at The Feed. NSF Certified for Sport is also checked against NSF's own database. Certifications can lapse, so check the certifier's search before you rely on one, especially if you're drug tested.

Transparency & Sources

70
Good transparency
0 certifications · 6 reviews at The Feed
The Feed
6 reviewsmedium

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As an Amazon Associate we earn from qualifying purchases. Pello Nutrition participates in affiliate programs and may earn commissions on purchases made through links on this site — this never influences our editorial scores or recommendations.Affiliate disclosure →