Proof.Fit

Quercetin

19 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Lipids down: LDL/TC

Blood pressure/endothelial function up

Arrhythmia/ischemia reduced

1,454 people

CRP/IL-6↓

JAK/STAT, TNF-α↓

hs-CRP −0.23

1,846 people

Inflammation/antiviral boost

Immune cells/antibodies

1,751 people
Metabolism
Moderate

Lipids/fat oxidation

+45% MFO

Insulin/androgens/adipokines

940 people
Antioxidant
Moderate

Antioxidant ↑ +7 min

Oxidative stress ↓

Bioavailability ↑ 20-fold

657 people

Better vessel dilation

Lower blood pressure

Reduced clotting

714 people

Bone markers +2.7%

Inflammation/vascular aging

NAFLD liver fat −1.9%

1,167 people
Skin health
Moderate

Healing + elasticity

Acne + barrier

Wrinkles -7%

422 people

less soreness, −5.5%

faster strength recovery, −10pp

better endurance, +3.9%

232 people

Respiratory relief, +symptoms

Faster lung recovery, inflammation

Fewer URTIs, allergies

478 people

Pain/function improved

Uric acid -26.5

Vitamin D +11.9

250 people
Blood sugar
Moderate

Postmeal glucose ↓

Insulin timing ↑

HOMA-IR ↓ 21%

298 people

Eye symptoms ↓, +55%

Rhinoconjunctivitis flare ↓, 46%

194 people

Gut barrier/permeability

Metabolite & absorption shifts

146 people

ALT, liver fat -1.9%

Visceral fat, BMI

102 people

Endurance +3–13%

Strength +10%

68 people

Reaction time improved

CBF trend only

80 people

Faster reaction time

CBF trend, no change

80 people

Eye symptoms ↓; -62.5%

Itching/congestion ↓; quercetin ↑

66 people