Many of these diet software’s contain a comprehensive food diary, which tells you what you can eat to lose weight at the same time. It also maintains a journal of to have been eating in the past, which you have to keep updating to keep a track of the number of calories that you are taking in. It has a very large database of different diets and exercises. For example, if you want, you can do the South Beach diet for PDA at the tip of your fingertips when you have diet software installed. Nowadays, diet software’s also contain BMI or body to mass index calculators so that you can check your BMI on the move at any time. They also allow you to track the intake of water on a daily basis.

Lastly, most of these softwares also have the ability to synchronize data with your computer as well, enabling you to have the option of seeing it that both places. The advantage of having diet software on your PDA is to give you the mobility and convenience to be able to check and maintain your diet even when you are on the move. You don't have to be near your computer. You can always come back later and update the program on your computer from new information available on your PDA diet software. Remember, that software is useful not only to those are overweight, but also to those who want to watch their weight to get a better BMI, or just to stay fit and healthy.