All About Eating 500 Calories A Day For A Month Today we will discuss eating 500 Calories A Day For A Month to Reduce Weight. What happens if you only eat 500 calories a day for a month? One of the greatest dangers associated with a diet of 500 calories relates to deficiency in vitamins and minerals. Deficits in vitamins and minerals can cause a variety of health problems. If you are eating less than 1200 calories a day, you are not going to be able to meet your vitamin and mineral requirements. How much weight can I lose by eating 500 calories a day? It is generally believed that if you reduce 500 to 1,000 calories a day from your typical diet, you will