Fitness guru Bob Harper revealed he drinks at least a gallon of water a day and said it's "one of the best weight-loss tips in the world." But there's no need to drink that much! Maya Feller, MS, RD, of Maya Feller Nutrition, told POPSUGAR we should aim for 91 ounces a day.
Drinking water throughout the day will fill your belly and satiate your thirst, which is often mistaken for hunger. Staying hydrated will also help you consume fewer daily calories and keep you alert so you're less likely to need sugar or a specialty Starbucks drink to pep you up.
"Rather than food right away, I recommend that each meal start with drinking water first," Muhlstein said. Aim to drink 16 ounces of water before reaching for your first bite of food. To help you remember, when you sit down to eat, make sure you have a big water bottle or two eight-ounce glasses. She said you may find yourself feeling fuller and slimmer in just a few days.