Dr. James B. Johnson, M.D. is the inventor of the UpDayDownDay ( UD DD ) diet. He studied on white mice at first to see how their bodies would react to eating a low amunt of calories one day and a high amount the next day. The mice that were not on the UD DD diet aged at a normal rate. The mice that were on the UD DD diet did not age as fast and seemed all around healthier!

At Dr. James B. Johnson's websight there is a food calculator on the "How does the Diet work page" that is where you to put your age, height and weight. Once you do that it will tell you how many calories you are alowd for your UD & DD . As your weight drops you will need to return to that calculator and put in your new weight to get your calories for the next week.

On your UD you can eat whatever you want just do not knowingly overeat. Just stay in your calorie range. After you have a few DD's your UD's will seem huge. But in fact before you were probly eating 2-3 times as much before!

On your DD's for the first 2 weeks a protien shake is advise. This make it so much easier to stay on the plan!You can find many recipes in book "The Johnson UpDayDownDay Diet™. "

After 2-3 weeks you will notice that your mood will improve! Your energy will increase! You will feel healthier!