What supplements can a person take to maintain a healthy blood pressure?

Supplements that people can take to maintain healthy blood pressure include calcium, magnesium, potassium and fish oils, notes WebMD. Supplements that may help lower blood pressure include cocoa, fiber and folic acid, reports Mayo Clinic.

Most of the essential nutrients that people need to prevent or treat high blood pressure are available in food. For example, low-fat dairy products such as cheese, milk and yogurt contain significant amounts of calcium. The average individual requires approximately 1,000 to 1,200 milligrams of calcium per day, according to WebMD. Pregnant women require even more calcium, as they must supply enough for themselves and their babies.