A trial of 186 overweight or obese women were randomly assigned to one of three groups: standard advice to eat less, another was taught to choose portions based on energy density, and the other received portion controlled meals. The last group lost the most at first, but at the end of a year all lost about 10 pounds. Those focusing on types of food did better than those trying to resist larger portions.
PositiveTip: Eat more veggies, fruit, legumes, whole grains–they are lower in calories without sugar and fats.