Healthy Diet—Not Exercise—Fuels Weight Loss
When it comes to weight control, hitting the gym most days of the week is a good thing—it's just not enough on its own, according to a recent study. The study shows that, without a healthy diet, exercise doesn't do much to help people lose weight or maintain a healthy weight.
For the study, more than 1,900 participants were given exercise trackers to monitor their physical activity and determine whether they met the U.S. Surgeon General's guidelines for exercise—at least 2 1/2 hours of moderate activity per week. Researchers also measured each participant’s height, weight, and body fat at the start of the study, one year later, and after two years.
At the end of the 2-year study, researchers found that some of the people who met exercise guidelines had gained weight. The reasons for this are not fully understood, but it could be that exercising increases appetite, causing people to eat more than they normally would. Regular exercise provides a number of important health benefits, but it seems high-calorie foods and drinks play a bigger role in the obesity epidemic than physical inactivity.
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