Can a food allergy cause weight gain ?

A lot of people try hard to loose weight and fail in doing so. In general, this could be explained by a low metabolism, endocrine problems, certain diseases... but Dr Mark Hyman, MD is proposing  that food allergies cause inflammation in our gastrointestinal tract which also cause bloating and weight gain. By eliminating the food allergens and hence the inflammation caused by it weight loss becomes easier.

You can check his website where you would find more information on his theory.