Proof.Fit

Branched-Chain Amino Acids

10 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Anabolic signaling +mTOR

Muscle preservation +gains

6,248 people

Muscle mass↑, breakdown↓

Fat loss, insulin↑

7,957 people
Strength
Strong

Frailty/Walking +0.7

Strength/Muscle +5–15%

5,409 people

Muscle sparing/anabolism +

Endurance/performance +

3,879 people

Anabolic recovery +MPS

Lower breakdown -CK

Glycogen sparing +135%

3,439 people

Anabolism +MPS

Proteolysis ↓ balance

+2d N balance

2,993 people

Protein gain +BCAA

Protein breakdown -BCAA

2,112 people
Endurance
Strong

BCAA/Leu: better endurance

Lower fatigue, +performance

1,298 people

Less fatigue, better endurance

Reduced damage, faster recovery

354 people

Less soreness, CK↓

Soreness↓, recovery↑

76 people