You’ll probably know if you drank alcohol the night before, but sometimes sodium-rich foods can sneak up on you. Most sodium-rich foods are found in processed snacks or meals, but sometimes you’ll find high amounts of sodium in foods like soups, broths, sauces, and even canned or pickled vegetables.

Bloating can also signal dehydration, especially if you’ve consumed a lot of salty food or alcohol. “Lack of proper hydration can cause water retention in the body, leading to puffiness,” explains Anna Askari, MD, family physician at One Medical. “This can be exacerbated by drinking alcohol or caffeine, which dehydrates the body.”

So, while hydration is important at all times, it will be even more important when combined with alcohol and high salt intake.