Common food sensitivities can cause bloating and weight gain.
When most people hear the term "food sensitivities," they imagine a stuffed or runny nose, itchy eyes, or other common symptoms from environmental allergens. While food sensitivities can cause these symptoms, they can also masquerade as other health issues, including weight gain and bloating.
Tissue swelling or bloating is a common symptom linked to eating foods to which you are sensitive. Some people lose weight just from cutting out those trigger foods. Some foods that commonly cause sensitivities are wheat, dairy products, corn and corn derivatives, soy, refined sugar, eggs, coffee or caffeine, beef, fish, or shellfish. Of course, there are others, but these are the most common offenders.

