It’s no secret that what you eat affects your teeth just as much as your waistline. While new diet trends often promise better health, weight loss, or more energy, some can unintentionally harm your smile. Your teeth and gums rely on a steady balance of nutrients and saliva-friendly habits to stay strong. When your eating patterns shift drastically, your oral health can suffer — even if the diet seems “healthy.”

Here are 5 popular diet trends that might be doing more harm than good to your teeth.