Richard Siegel, MD, is a double board-certified endocrinologist, the Co-Director of the Diabetes and Lipid Center at Tufts ...

Some people pair glutamine with a shot of apple cider vinegar. This is a great way to keep your gut’s microbiome balanced, which aids digestion and also gives your immune system a boost. Just mix 1 ...

Ayesta, RD, owner of Planos Nutrition in Tampa, Florida. The active ingredient in apple cider vinegar is acetic acid, produced when apples are fermented and exposed to certain enzymes.