How do you lose weight in one day?

A person can lose weight in one day by limiting intake of sodium and starches. Sodium and starches encourage fluid retention, so drastically reducing them can result in a loss of water weight at the start of a diet.

Drinking more water also helps fight excessive water weight because a hydrated body is less likely to retain excess water. Fruits, vegetables, ginger, garlic and parsley contribute to loss of water weight. Adding cardio exercise to a daily regimen raises the heart rate, which encourages fat loss and may help with fluid retention.

Burning more calories than are eaten each day results in weight loss, and a 500-calorie daily deficit results in roughly a pound lost per week. Staying within this goal helps with long-term weight loss after the initial water-weight drop. Vegetables are low in calories, so a person can consume a large amount of them to fight hunger without dipping into the calorie deficit.

Fad or crash diets, laxatives and fasting are typically not healthy ways to lose weight. Fad diets usually require fewer calories than are healthy and require deprivation, which results in regaining the weight afterward. It is healthy for most people to lose up to 3 pounds per week after the initial water-weight loss.