12 June, 2019 What Causes Food Allergies? Posted in : Health, Video on 06/12/2019 by : EYEONFOOD Tags: What Causes Food Allergies? Share This! For some people, a simple peanut or a bite of shrimp can cause the body’s immune system to wildly overreact. In some cases, the results can be deadly. But what exactly is happening in the body for it to confuse nuts or shellfish with a true threat? Share This!