Grapefruit benefit: Fight signs of aging
Grapefruit contains retinol antioxidants that help repair damaged skin and fight the development of fine lines and wrinkles. The fruit also contains a compound called spermidine. A 2009 study found that when spermidine was added to mice diets, it slowed the cell aging process. Try a grapefruit face mask once a week to improve your skin. Mix 1 tablespoon of honey, 1/2 cup of oatmeal, and juice from 1/2 of a grapefruit.
Grapefruit danger: Interactions with medications
Due to compounds called furanocoumarins, grapefruit juice can interact with certain medications and dangerously increase their potency. “Taking one tablet of certain medications with a glass of grapefruit juice can be like taking five tablets with water,” according to David Bailey, PhD, a clinical pharmacologist at the Lawson Health Research Institute and lead researcher on a study of drugs that interact badly with the juice. A single grapefruit or glass of juice, even if consumed hours before or after taking a drug, is enough to cause a reaction. Check with your doctor to see if any medications you take are affected by grapefruits.