It is important that if you are under a doctors care for health issues, then you consult with them before starting on the products. In many cases you will be able to use the products and programmes. The handy product overview guide includes all allergens and ingredients at the end of the document and is useful to share with your doctor.
Isagenix also has a great site dedicated to information about the science and use of Isagenix products. There are some great articles that provide information on some of the more regular health issues people may have: