Cardiologist Dr. Evan Levine warns about supplements increasing heart attack and liver failure risks. Niacin, exceeding recommended doses, doubles cardiovascular disease risk and causes liver toxicity. Green tea extract, in high doses, harms the liver. Erythritol and xylitol, artificial sweeteners, raise blood clot risks. Gel capsules containing phthalates cause artery inflammation, potentially leading to heart attacks and strokes. Dr. Levine urges caution and moderation in supplement use.

Prepared by Olivia Bennett and reviewed by editorial team.