I have read that 2/3rds of weight issues is food intake, 1/3 is exercise. I can believe it, because if you look up how many calories are burned walking 30 minutes, it's 80-100 calories. By contrast, there are 150 calories in a can of soda.
If I was overweight, I'd concentrate on the food aspect and forget about exercise, because that's 2 difficult things to change at once. Cut out grains (bread, rice, pasta), sugar, high fructose corn syrup, starchy vegetables (limas, peas, corn, beans, potatoes). Losing weight requires putting the body in calorie deficit so that it has to use fat already stored rather than relying on incoming food calories.
If I was overweight, I'd concentrate on the food aspect and forget about exercise, because that's 2 difficult things to change at once. Cut out grains (bread, rice, pasta), sugar, high fructose corn syrup, starchy vegetables (limas, peas, corn, beans, potatoes). Losing weight requires putting the body in calorie deficit so that it has to use fat already stored rather than relying on incoming food calories.