Proof.Fit

Selenium

17 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Main Effects
Cell health

Antioxidant defense ↑

Cell damage ↓

Mortality ↓ 89%→0%

Strong
52,637
Antioxidant

GPx↑, oxidative stress↓

Se status↑, GPx↑

Strong
16,503
Healthy aging

Lower mortality −9%

Lower cancer deaths −13%

Cardiovascular deaths −49%

Strong
185,690
Immune support

Inflammation↓ IL-6/TNF

Infections↓, vaccine↑

Strong
42,654
Heart health

Cardio mortality -49%

Heart function, biomarkers

Cholesterol reduced ~12%

Strong
107,145
Pregnancy support

Se status ↑, pregnancy outcomes

~20% lower complications

Antioxidants/GPx ↑, glucose↓

Strong
7,938
Nutrient uptake

Selenium status ↑; uptake markers

Insulin/HOMA-IR ↓; uptake markers

Strong
4,816
Hormone balance

Thyroid antibodies -36%

TSH/FT4 shifts

Strong
6,250
Respiratory comfort

Asthma: better comfort

Ventilation: fewer days

Lung flow: slight gain

Strong
4,925
Fertility

Sperm quality +47%

Pregnancy/embryo outcomes +19%

Strong
1,779
Detoxification

GPx↑, MDA↓

Toxic metals excretion↑

Mortality 89%→0%

Strong
1,455
Skin health

Wound healing +50%

Skin inflammation +function

Cancer risk +17%

Moderate
2,171
Mood balance

Mood↑, anxiety↓

HDRS −5.1; TAC↑

EPDS↓

Moderate
371
Focus & concentration

EEG preserved

+0.015 gamma

MMSE stable

Moderate
250
Energy & Fatigue

Fatigue/appetite better

Nutrition/KPS +23%

Moderate
216
Muscle maintenance

Muscle damage ↓

Strength +11%

Weak
144
Hair & Nails

Cure rates +90.9%

Well tolerated

Weak
40