People with postural orthostatic tachycardia syndrome (POTS) experience a fast heart rate, dizziness, and other symptoms when standing. Can any supplements or lifestyle changes help? Find out in our answer to the question: Are there supplements that help treat POTS?

A small study among people who suffer from POTS (postural tachycardia syndrome) suggested that supplementing with thiamin (vitamin B-1) may help some. For details, see the Thiamin (B-1) section of the B Vitamin Supplements Review >>

Can supplementing with vitamin D reduce the risk of orthostatic hypotension (low blood pressure when standing)? Find out what a recent study showed in the What It Does section of our Vitamin D Supplements Review. Also see our Top Picks for vitamin D.

CoQ10 may help reduce the fall in blood pressure that occurs in orthostatic hypotension (low blood pressure upon standing) according to a recent report. See the details in the "What It Does" section of the CoQ10 and Ubiquinol Supplements Review >> [Also see our Top Picks for CoQ10 supplements in the Review.]

Vitamin D deficiency has been linked with a form of low blood pressure (orthostatic hypotension) in older men. Get the details in the What It Does section of Vitamin D Supplements Review. Also see our Top Picks for vitamin D.