Diabetes is a chronic disease that is the result of the pancreas being unable to produce insulin or to use the insulin produced in the body the proper way. There are two types of diabetes: Type I diabetes and bacteria.
Companies create specific types of Natural and organic products, are usually good choices as well. (Note: when rubbing around the feet do not put cream between the toes as this may allow for bacteria to grow.)
It is important to pick a foot creams that are specifically designed to fight callouses and sooth cracks in the palms or heels.
Of course, always remember to consult your physician to make the best choices for your skin care when you have special requirements.