Salt is in nearly everything you eat! How bad is it? Sodium and calcium are regulated by the same molecule in your body, according to new research. When you have too much salt, this molecule gets rid of it through your urine—and brings calcium with it. Too little calcium in your body can cause thin bones and osteoporosis—and too much in your urine can cause kidney stones.

Most adults should stick to 2300mg of sodium a day. If you’re at high risk for cardiovascular health problems, aim lower—about 1500mg per day. The best way to avoid overdosing on sodium? Eat fresh, home-cooked meals over canned and frozen foods. Your face may even start to lose extra puffiness!