Sold in suppository form, boric acid is often touted as a natural treatment for yeast infections. The acid form of the mineral boron, boric acid was deemed a "safe, alternative, economic option" for women with recurrent yeast infections in a 2011 report published in the Journal of Women's Health. However, it's important to note that boric acid is poisonous when taken orally.
Available in dietary supplement form, boron is sometimes recommended as a natural remedy for conditions like diabetes and high cholesterol. But while consuming boron-rich foods (such as broccoli, red apples, peanuts, and bananas) is important for your overall health, there's currently a lack of scientific support for the claim that boron supplements can protect against specific health problems. What's more, there's some concern that boron supplements may increase estrogen levels and therefore be harmful to people with hormone-sensitive conditions (including breast cancer and endometriosis). Read the article: Boron - What You Need to Know.