Proof.Fit

Casein

15 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Main Effects
Nutrition source

Protein status: +albumin

Metabolic/BP: glucose, BP

Infant tolerance: allergy↓

Strong
14,748
Protein source

Amino acids/insulin↑

Digestion/satiety/growth

Strong
10,759
Weight management

Satiety/intake ↓

Weight loss/maintenance ↑

Body fat ↓

Strong
3,366
Body composition

Lean mass ↑

Fat mass ↓

Strong
965
Muscle growth

Casein boosts MPS

Whey stronger short-term

Strong
923
Tissue repair

Muscle synthesis +

Protein balance +

Recovery/anabolism +

Moderate
626
Healthy aging

Protein synthesis +31%

Lean mass +4 kg

Moderate
647
Strength

Strength +31%

Strength gains

Moderate
421
Exercise recovery

Synthesis + recovery

+25–30% overnight MPS

Performance + soreness

Moderate
380
Satiety

Satiety +CCK/PYY

Lower intake ~10%

Moderate
336
Muscle maintenance

Protein balance +MPS

Leucine delivery +28%

Moderate
321
Appetite suppression

CCK/GLP-1 ↑ satiety

Intake ↓ 44 kcal

Moderate
302
Bone health

Bone markers +15%

Enamel remineralization +70%

Moderate
331
Sleep quality

Sleep onset/quality: improved

Cortisol/stress: reduced

Sleep latency: -7.7 min

Moderate
207
Energy & Fatigue

Satiety + energy

Lower glucose spikes

Slower AA release

Weak
102