Coenzyme Q10

Principal claimsa
Slows aging; increases energy; enhances endurance and aerobic performance; strengthens heart; lowers blood pressure; improves immune function; promotes weight loss; treats cancer, stroke, and gum diseases.

Principal known adverse effects
Rare, but include heartburn, nausea, stomachache, diarrhea, headache, fatigue, and skin reactions.

Principal known contraindicationsb
N/A

Principal known interactions
May interact with blood thinners.

* Dehydroepiandrosterone (DHEA)

Principal claimsa
Slows aging; improves memory; stimulates libido and increases sex drive; eases symptoms of depression; boosts energy; promotes weight loss; builds muscle mass and increases strength; prevents growth and recurrence of some cancers; protects against heart disease; reduces the risk of osteoporosis; prevents diseases such as diabetes, Parkinson’s, and Alzheimer’s.

Principal known adverse effects
Increased facial hair; acne; scalp hair loss; oily skin; mood swings; aggressiveness; altered hormone profiles; liver abnormalities; menstrual cycle irregularities; increased risk of heart disease, diabetes, stroke, prostate cancer in men, and breast and endometrial cancer in women; insomnia; fatigue; low energy; headache; nervousness; deepening of the voice; irritability; decreased levels of high-density lipoprotein (HDL) cholesterol; heart rhythm disturbances; hepatitis.

Principal known contraindicationsb
People with a hormone-related cancer (prostate, ovarian, endometrial, breast) should consult physician. Should be avoided by men with enlarged prostate.