Your body can gain from Nutri System by becoming healthier and creating a better metabolism for you to help you burn calories faster. It also provides you with the proper portions and food groups to help you know what to eat and when.
The 11 body systems are as followed (not in order): the muscular,immune, skeletal, digestive, nervous, endocrine, circulatory, reproductive, integumentary, excretory, and the respitory system.