Proof.Fit

HMB

13 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Muscle growth
Strong

Lean mass +0.8–12.7%

Muscle loss −2.0 kg

3,008 people
Muscle maintenance
Strong

Lean mass +2.55kg

Muscle loss -14%

3,470 people
Strength
Strong

Strength ↑; +4.6kg grip

Lean mass ↑; +1.2%

Power/function ↑; +21.5% jump

2,100 people
Illness recovery
Strong

Muscle loss↓, strength↑

Mortality↓, recovery↑

Function↑, mass↑

2,501 people
Healthy aging
Strong

Muscle/strength + function

Nutrition/weight + less mortality

Cardio-endothelial +27% FMD

3,204 people
Body composition
Strong

↑Lean mass +3.0kg

↓Fat/VAT −93.8g

↑Strength/power +23%

1,826 people
Exercise recovery
Strong

Damage markers ↓, recovery ↑

Strength/function ↑, stay ↓

1,040 people
Daily comfort
Strong

Strength/mobility +17%

Mass/weight gains

Hospital stay -4.3d

1,763 people
Joint mobility
Moderate

Strength/mobility +17%

Walk +47.6m

550 people
Workout performance
Moderate

Strength/power +18%

Aerobic/endurance +9%

Recovery/damage markers

211 people
Endurance
Moderate

Endurance: +VO2max

Threshold/delay: +9.1% OBLA

Recovery: 24h work capacity

202 people
Muscle soreness
Weak

Less CK, soreness

Better strength recovery

69 people
Bone health
Weak

Bone density/strength +6-28%

Bone density + strength

30 people