Optimum Nutrition Mega-Size BCAA 1000 Caps

Optimum Nutrition · Mega-Size BCAA 1000 Caps

Optimum Nutrition

Mega-Size BCAA 1000 Caps

Amino acid/Protein200 servings

Skip our read

None of the 3 actives we can check reach a studied dose.

Dose 0 of 3 reach a studied dose

Quality

How it scores

$36.82★4.6 (16,819)

Overall

F

Evidence

F

Dose

F

Formulation

B

Brand

73/100

The label

What's in it, judged

Supplement Facts

Serving Size: 2 Capsule(s)

200 per container

IngredientAmount%DV

† Daily Value not established

Other ingredients: Gelatin, Microcrystalline Cellulose, Magnesium Stearate.

Suggested Use: Consume 2 BCAA 1000 Capsules between meals, 30-45 minutes before workouts, and/or immediately after workouts.

below the studied range Every ingredient links to our evidence.

Reported interactions

Side effects:
Gastrointestinal symptoms (nausea, bloating, diarrhea, constipation, reflux) ·Valine_and_isoleucine_depletion ·Blood_ammonia_increase ·Reduced_isoleucine_and_valine_plasma_concentrations

From research databases. Not medical advice — talk to your physician.

Dose check

Does the dose do anything?

  • L-Leucine

    Below the studied range

    0.5 g / day studies used 1.56-14 g · 9 studies

  • L-Isoleucine

    Below the studied range

    0.25 g / day studies used 2-17.61 g · 13 studies

  • L-Valine

    Below the studied range

    0.25 g / day studies used 5-10 g · 3 studies

What it's studied for

  • Gut motilityC

    Movement through the digestive tract

    Gastrointestinal

  • After-meal blood sugarC

    Lower blood sugar after meals

    Glycemic & metabolic

  • Body weightC

    Body weight

    Weight management

  • Body fat percentageA

    Lower body fat percentage

    Body composition

  • Muscle strengthA

    Increase muscle strength

    Muscle function

The brand

Optimum Nutrition

73/100

Optimum Nutrition is a trustworthy sports-nutrition brand, with third-party testing and authenticity guidance supporting credibility, while certification evidence remains product-specific rather than universal.

Quality 79
Formulation 72
Safety 60
Transparency 75
Value 81
  • ✓ NSF certified
  • ✓ Third-party tested
  • ✓ Effective dosing
  • ✓ Premium ingredients
Read the full Optimum Nutrition investigation →

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