A headache is a common early side effect of a ketogenic (keto) diet. This high-fat, low-carb diet was initially intended to help control seizures in people with epilepsy. In recent years, the keto ...
A soy allergy is the body's abnormal response to the proteins found in soy. The key to a soy-free diet is to stay away from all foods or products containing soy. Soybeans are classified as a legume.