A new study has found that diet and exercise can help people lose weight, but the amount of weight lost varies depending on the individual. The study, published in the journal JAMA Internal Medicine, looked at data from over 4,000 adults who were overweight or obese. Participants were randomly assigned to one of four groups: a diet group, an exercise group, a diet and exercise group, or a control group. The diet group was given a calorie-restricted diet and the exercise group was given an exercise program. The diet and exercise group was given both a calorie-restricted diet and an exercise program. The control group was given no intervention. After one year, the diet group had lost an average of 5.3 pounds, the exercise group had lost an average of 4.3 pounds, the diet and exercise group had lost an average of 10.3 pounds, and the control group had lost an average of 1.1 pounds. The study found that diet and exercise are both effective for weight loss, but the combination of diet and exercise is the most effective. The study also found that the amount of weight lost varies depending on the individual. Some people may lose more weight than others on the same diet and exercise program. The study authors say that their findings suggest that diet and exercise are important components of a successful weight loss program. They say that people who are overweight or obese should consider adopting a healthy diet and exercise program to lose weight and improve their overall health..