I am on a 1200 calorie diet. Fruits, vegetables and tofu. And some fat-olive oil, coconut oil. As a vegetarian of 22yrs (10 of those vegan) it is not far from how I usually eat, except now I do not eat tons of home made bakery! I was 146.6 and now I am 139. I run (always have) 3x a week, and now weight lift 3x a week. Suddenly I am constipated. I want to eat the right amount of calories, not just a small number that may not actually appropriate. What is a good amount for me? I am 37 and 5'4".