Proof.Fit

Niacin

13 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Main Effects
Cholesterol

LDL↓ HDL↑

TG↓ +39%

Strong
75,668
Heart health

HDL↑ LDL↓ events↓

IMT↓ 0.01mm

Strong
14,867
Metabolism

HDL↑ TG↓ LDL↓

Glucose↑ insulin resistance↓

Strong
18,249
Blood circulation

HDL↑ LDL↓

CIMT/FMD +22%

Blood flow↑

Strong
2,352
Healthy aging

Atherosclerosis slowed

HDL/LDL improved

Moderate
4,648
Skin health

Barrier +25%/−20%

Flushing −50%

Itch −28%

Moderate
1,360
Energy & Fatigue

Fuel shift: FFA↓, carbs↑

NAD+ boost: ~2x

Weak
137
Digestive support

↓ flushing, GI AEs

no serious-AE rise

Weak
11,310
Vitality

Recurrent MI ↓

15-year mortality ↓14%

Weak
3,906
Detoxification

Phosphorus -0.7 to -1.0

Albumin improved

Weak
98
Immune support

HDL up, CRP -15%

Triglycerides -15%, Lp-PLA2 -20%

Weak
54
Appetite regulation

Leptin +2.38; FFA ↓

Leptin +26.8%; HOMA +42%

Weak
30
Brain health

Improved dementia ratings

Boosted blood flow

Weak
30