Although ACV is used as a natural remedy for colds, it may come without potential side effects. Amy Shah, M.D., a double board-certified physician, notes that if you overdo it, it can cause stomach upset and bloating. So if you’re new to taking ACV, start slow and don’t take too much at once. As a general rule, you never want to exceed 8 ounces per day (which is more than you need anyway).
There’s a theory that the acetic acid in the ACV may also erode tooth enamel and make you more susceptible to cavities. It’s worth noting the study that showed these results tested teeth in a lab setting and didn’t account for natural buffers in your saliva that protect your teeth from acids. Nevertheless, it’s important to acknowledge. You can protect yourself from the potential negative effects of ACV on your teeth by rinsing your mouth out with water directly after you take it and waiting for at least 20 minutes to brush your teeth.
Apple cider vinegar may also interact with certain medications, like insulin, diuretics, or potassium-lowering drugs. If you’re taking any medications, always check in with your doctor before adding something new, like ACV, to your routine.