Other substances
Comparable to the properties of some drugs, certain substances present in food, or in the form of so-called dietary supplements, also have an effect on the GMA record. An example is ginger, a rhizome with a specific odour and a characteristic pungent taste. In folk medicine, it is a known herbal medication with antiemetic, antiseptic and stimulating properties. Research has shown that ginger administered prophylactically significantly reduces the severity of both subjective symptoms, and objective changes in the electrogastrographic record associated with motion sickness [25].