Doggie Bags in Food Traditions & Culture Posted February 12, 2003 To maintain regular weight for a healthy guy the average daily calorie intake should be in the region of 3000, slightly less for a woman. Now assuming that you eat out on a regular basis and not just once in a while as a "treat" then what you eat at any given meal should enable you stay within these limits. If your main meal is eaten out I would think that in total it should add up to no more than 2000 calories with a reasonable balance between carbs, proteins and fats. So a 12 ounce broiled sirloin would take half of that so the rest of your meal should add up to 1000 calories. There are many ways of achieving a "reasonable" diet, and I'm not talking "strictly follow the guidelines healthy" diet, but the start of this is to have reasonable portions which stay (more or less) within the RDA guidelines for calorie and fat intakes.