Nice, I thought bigu was the chinese name for fasting, not for abstaining from grainsIt is called Bigu (abstaining from grains). It includes all grains wheat, barley, rice, rye, corn, etc. It has been shown that all grains promote the growth of unhealthy gut flora. Sugar, fructose and some sweeteners do that too. Consume pseudocereals like buckwheat, amaranth etc and tubers or roots instead.