Type 2 diabetes mellitus (T2DM) is a growing global health problem that is closely related to the obesity epidemic. It is one of the most common non-communicable diseases in the world, characterized by disorders of carbohydrate, lipid and protein metabolism, and arises from impaired insulin secretion, cellular resistance to insulin or a combination of these factors.

The modern world has been gripped by an epidemic of food restrictions. Supermarket shelves are overflowing with products labeled "gluten-free," "lactose-free," and "sugar-free." People have been on strict elimination diets for years, trying to escape bloating, pain, atopic dermatitis, or systemic allergies.