Proof.Fit

Zinc

17 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Gut barrier - intestinal permeability

Immune defense - infections -20%

145,245 people

Growth + zinc intake

Growth +10%

47,633 people

Zinc↓ ALT/GGT, waist

Phytate↓ zinc absorption

16,105 people

Liver/oxidative protection

Cell damage −10%

Inflammation/antioxidants ↑

15,773 people

Inflammation↓ CRP/TNF-α

Inflammation↓ plaques/gingivitis

Inflammation↓ diarrhea/infection

8,779 people

Barrier/healing +7pp

Acne/dermatitis reduced

-35 days wound

7,641 people

AMD progression -25%

Vision loss / function

Macular electrophysiology +38%

102,847 people

Ulcer healing +90%

Mucositis pain reduction

Wound infection −79%

4,450 people

Better cognition +2

Mixed behavior/attention -37%

Improved neurodevelopment +14.8pp

3,403 people
Fertility
Strong

Sperm count/motility +47.8%

+74% normal sperm count

Pregnancy rates +18.9%

3,974 people

Smell recovery: 18→7 days

Bad breath: VSC ↓

2,630 people

Depression down; response faster

PMS/anxiety down; mood up

1,197 people

IGF-1/growth ↑

+48%, +20%

Testosterone/sex hormones ↑

1,256 people

↑ Intake, appetite +

↓ Nausea/illness, +

1,866 people
Bone health
Moderate

Bone growth + density

Bone turnover ↓

1,353 people

less fatigue, +43.7

better exercise tolerance, -1.0

improved fatigue/energy, +0.8

1,545 people
Hair & Nails
Moderate

Dandruff/hair conditioning +1

Hair loss/zinc status

1,108 people