Coenzyme Q10 is a vitamin-like substance found in small amounts in meat and seafood and also made in the body. It helps produce energy in cells and works as an antioxidant. Low levels are linked with conditions like heart failure, high blood pressure, Parkinson’s disease, and HIV.

Uses & Effectiveness:

Likely effective: CoQ10 deficiency, mitochondrial myopathies.

Possibly effective: Heart failure, diabetic nerve pain, fibromyalgia, migraine prevention, multiple sclerosis (fatigue), muscular dystrophy, heart attack recovery, Peyronie disease.

Possibly ineffective: Alzheimer’s, ALS, cancer drug fatigue, diabetes, Parkinson’s disease, post-polio fatigue.

Likely ineffective: Athletic performance, Huntington’s disease.

Insufficient evidence: Angina, cancer, autism, infertility (male & female), high blood pressure, cholesterol, kidney/liver disease, COPD, NAFLD, PCOS, statin side effects, wrinkles, and many others.

How it Works:
Supports energy production in cells and acts as an antioxidant.

Side Effects:
Generally safe. May cause mild stomach upset, nausea, diarrhea, loss of appetite, rashes, or lower blood pressure. Splitting the dose reduces side effects.