Try to sip, rather than chug, water. Sipping water allows your body to digest food properly. Chugging water can actually make your belly swell up. [2] X Research source

Avoid canned soups and frozen meals as salt is used as a preservative in these foods. Go for fresh meat from the butcher over deli meats, which is full of sodium. Use table salt sparingly in your cooking and use less spices in your food to cut back on sodium. Avoid pre-made salad dressings and sauces, as these are often high in sodium. Cheese is also a high sodium food, so cut back on cheese if possible.

Have a breakfast high in fiber, like a bowl of whole grain cereal, or add a few tablespoons of flax seed to your breakfast cereal, your yogurt, or your morning smoothie. Flaxseed is high in fiber and omega-3 fatty acids. They can be ground in a coffee grinder or a food processor to then add to foods. Have steamed or raw vegetables as part of your lunch and dinner. Avoid boiling or roasting your vegetables as this removes a lot of the nutrients and healthy fiber. [6] X Research source Be sure to snack on fruits like blueberries, strawberries, raspberries, and blackberries, which are packed with fiber and other antioxidants.

You can also drink cranberry juice, a natural diuretic that will help to flush toxins and fluids from your body. [8] X Research source

Spend only 30 minutes at a time in the sauna to avoid dehydration. You will likely gain the water weight back after drinking or eating, but this is a good way to temporary shed water weight for the night.

High intensity interval training (HIIT) can help you burn fat and sweat out water weight. This type of training is structured around simple, intense exercises, followed by short bursts for recovery or rest. You can perform HIIT exercises with gym equipment, or an exercise mat and a few free weights. There are several popular HIIT programs listed here.