In a study of 20 14, 50 obese women drank 500 ml of water 30 minutes before meals for 8 weeks, and the participants' weight and body fat decreased.
Water is necessary for burning fat.
Without water, the body can't metabolize the stored fat or carbohydrate normally. Fat metabolism is the process of fat decomposition. The first step in this process is hydrolysis. When water molecules interact with triglycerides (fats), glycerol and fatty acids are produced. Drinking enough water is very important for burning calories in food and drinks and fat stored in the body.
Drinking water will increase the number of calories burned when the body is inactive or at rest, which is called "resting energy consumption", which can make you burn more calories. Here are some findings:
A study in 20 14 years showed that 12 people drank 500 ml of cold water and warm water, and burned 2% to 3% more calories than usual within 90 minutes after drinking water;
The resting energy consumption of adults increases by 24-30% within 10 minute after drinking water. The duration of this process is at least 1 hour;
A study on overweight and obese children found that resting energy consumption increased by 25% after drinking cold water;
A study on overweight and obese women investigated the influence of drinking more than 1 liter per day on weight loss.
Two other studies show that drinking 500 ml of water consumes an extra 23 calories. It is equivalent to a total consumption of about 17000 calories per year, which is more than 2 kilograms of fat.
Several other studies monitored obese people, who drank 65,438+0-65,438+0.5 liters of water every day for several weeks, and found that their body mass index (BMI), waist circumference and body fat rate were significantly reduced.
When drinking cold water, the result is even more impressive. Cold water can further improve the effect of burning calories, because the human body consumes extra calories to raise the water temperature to body temperature.