These Popular Supplements Could Worsen High Blood Pressure—Experts Warn

People with high blood pressure are being warned about certain supplements that could worsen their condition. Some popular herbs and vitamins may raise heart rate, interfere with medication, or increase stroke risk. Experts advise checking with a doctor before taking any over-the-counter products.

Several common supplements pose risks for those managing high blood pressure. Licorice root contains glycyrrhizin, a compound that causes the body to retain sodium while losing potassium. This imbalance can push blood pressure higher. Similarly, guarana—a plant from the Amazon—can speed up the heart and potentially raise blood pressure.

Asian ginseng, often used in traditional Chinese medicine, may also increase heart rate and blood pressure. Bitter orange supplements have uncertain effects but are known to elevate both measurements in some cases. Yohimbe, found in weight loss and performance supplements, has been linked to dangerous spikes in blood pressure and even heart attacks.

Arnica can interfere with blood pressure medication, making it less effective. If ingested, it may also cause rapid heartbeat, higher blood pressure, and heart damage. St. John's wort affects how the liver processes drugs, including cardiovascular medications, by altering the CYP3A4 enzyme system. Vitamin E supplements carry their own risks, potentially increasing bleeding and the chance of hemorrhagic strokes.

Health professionals stress that most people with high blood pressure do not need extra supplements beyond a basic multivitamin. A balanced diet rich in fruits and vegetables usually provides enough nutrients. The key advice remains: always consult a healthcare provider before starting any new supplement.

Many supplements marketed for health benefits can actually harm those with high blood pressure. Without clear medical guidelines on mixing these products with prescriptions, caution is essential. Speaking to a doctor ensures safe choices and avoids unnecessary risks.