Proof.Fit

Zinc

17 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Main Effects
Immune support

Gut barrier - intestinal permeability

Immune defense - infections -20%

Strong
145,245
Growth support

Growth + zinc intake

Growth +10%

Strong
47,633
Metabolism

Zinc↓ ALT/GGT, waist

Phytate↓ zinc absorption

Strong
16,105
Cell health

Liver/oxidative protection

Cell damage −10%

Inflammation/antioxidants ↑

Strong
15,773
Inflammation

Inflammation↓ CRP/TNF-α

Inflammation↓ plaques/gingivitis

Inflammation↓ diarrhea/infection

Strong
8,779
Skin health

Barrier/healing +7pp

Acne/dermatitis reduced

-35 days wound

Strong
7,641
Eye health

AMD progression -25%

Vision loss / function

Macular electrophysiology +38%

Strong
102,847
Skin repair

Ulcer healing +90%

Mucositis pain reduction

Wound infection −79%

Strong
4,450
Mental clarity

Better cognition +2

Mixed behavior/attention -37%

Improved neurodevelopment +14.8pp

Strong
3,403
Fertility

Sperm count/motility +47.8%

+74% normal sperm count

Pregnancy rates +18.9%

Strong
3,974
Nerve health

Smell recovery: 18→7 days

Bad breath: VSC ↓

Strong
2,630
Mood balance

Depression down; response faster

PMS/anxiety down; mood up

Strong
1,197
Hormone balance

IGF-1/growth ↑

+48%, +20%

Testosterone/sex hormones ↑

Strong
1,256
Appetite regulation

↑ Intake, appetite +

↓ Nausea/illness, +

Strong
1,866
Bone health

Bone growth + density

Bone turnover ↓

Moderate
1,353
Energy & Fatigue

less fatigue, +43.7

better exercise tolerance, -1.0

improved fatigue/energy, +0.8

Moderate
1,545
Hair & Nails

Dandruff/hair conditioning +1

Hair loss/zinc status

Moderate
1,108