I find it interesting, again, that another source is citing a one plan fits all approach - "The Institute of Medicine recommends that moderately active women over the age of 50 get 1,800 calories daily". I could never eat that much a day! I eat a low carb diet with lots of veggies, protein, nuts and seeds. By choosing these foods I get full and feel satisfied and don't need to add food just because someone says I need to eat x-amount of caleries/carbs a meal/day. I listen to my body for it to tell me what I need.