Weight maintenance takes work. This is true whether you are hoping to maintain a recent weight loss or to ensure your weight stays on track as you age. Calories In vs. Calories Out Maintaining your weight is more complicated than maintaining the ratio of calories eaten vs. calories burned. Why? Because there are so many variables that affect this ratio, such as metabolic efficiency (is your body burning the right types of energy appropriately) timing of meals, and type of exercise (anaerobic vs. aerobic). Be sure to take into account your energy needs (for daily living plus exercise), nutritional needs, and exercise regimen. These are different for every person and vary according to age, sex, weight, co-morbidities, and fitness level. Loss vs. Maintenance Be flexible in your approach to weight maintenance. What works to lose weight does not always work for maintenance. If you’ve lost weight through calorie restriction and/or by eliminating groups of foods, weight maintena...