Which herbal supplement is known to potentially increase blood pressure?

Ephedra is known to potentially increase blood pressure due to its active compounds that stimulate the central nervous system and constrict blood vessels. These effects can lead to elevated heart rate and increased blood pressure, making it particularly important for individuals with hypertension or cardiovascular issues to avoid this supplement. The use of ephedra has been associated with serious side effects, including cardiovascular complications, which is why its sale is restricted or banned in many countries.

In contrast, ginger, chamomile, and peppermint have not been shown to have the same potential for increasing blood pressure. Ginger is often noted for its anti-inflammatory properties and may even have a mild blood pressure-lowering effect. Chamomile is typically used for its calming effects and is not known to impact blood pressure significantly. Peppermint has digestive benefits and is generally considered safe without blood pressure implications. Therefore, ephedra is the correct choice regarding the potential to raise blood pressure among herbal supplements.