Can You Lose Weight by Drinking Water?
Can You Lose Weight by Drinking Water?
Add sliced fruit to your water to boost your water intake.
If there is one “holy grail” secret to keeping your body healthy, it’s drinking plenty of water. The U.S. Geological Survey notes that water makes up as much as 60 percent of our bodies, and it's responsible for everything from flushing out body waste to regulating body temperature.
“Our bodies are very dependent upon water, as all cells, body compartments, and bodily fluids for example blood within the human body contain water to some degree,” explains a gastroenterologist and the clinical director of the fatty liver program at Yale Medicine in New Haven, Connecticut. He adds that our kidneys are good at managing the amount of water within our bodies; they make more urine in states of excess water intake, and they reduce urine production during periods of reduced water intake. But the body is more sensitive to states of water deprivation, and is generally not able to survive more than a week without water.
In addition to keeping you alive by helping your bodily systems function which is obviously the biggest perk of staying hydrated, water can also help you achieve a healthy weight. But it’s not as simple as water in, weight off. Here’s what you need to know about how water may help with weight loss or maintenance.
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What Does Science Say About Hydration and Weight Loss?
There is some scientific evidence supporting water as a tool for weight loss via a number of mechanisms. Dr. Do emphasizes that it is “not clear” that drinking water directly leads to weight loss, saying the two may be indirectly related.Board-certified specialist in sports dietetics based in Los Angeles, points out that water is just one piece of the weight loss puzzle, and she doesn’t recommend counting on it as a sole weight loss solution. “However, water is needed for every process in the body — including healthy circulation, digestion, and waste elimination — so drinking enough water benefits health in other ways,” she explains.
Water Consumption May Result in Less Food Consumption
One small study Clinical Nutrition Research, found that drinking water before meals helped naturally reduce calorie intake, which may in turn support healthy weight management. When subjects drank one and a quarter cups of water prior to a meal, they ate less compared with the groups who drank the same amount after a meal or drank nothing at all. This study involved only 15 participants, all of whom were between ages 20 and 30, so larger, more diverse studies are needed.
“In other words, drinking water before eating or with food may lead to reduction of food consumed and thus lead to weight loss,” Do explains. “Drinking water in the hour before eating a meal may allow time for hormonal signals of satiety to take effect and lead to less hunger at the time of eating.”
He also notes that increasing fiber intake before meals, or opting for multiple, smaller snacks throughout the day rather than three larger meals may have a similar effect.
Upping Water Intake May Help Speed Up Metabolism
A review of studies from published in Frontiers in Nutrition, concluded that increasing water intake not only promoted weight loss via “decreased feeding,” but also helped speed metabolism by increased lipolysis the breakdown of fats and other lipids by hydrolysis to release fatty acids.
“Research shows that water can help rev metabolism, and while the effect may be slight, it can snowball to create a greater impact over time,” adds Sass.
Scope of the Journal: Obesity, Eating Disorders and its associated areas of research
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Journal of Obesity and Eating Disorder.