The blood sugar is transported through the bloodstream to supply energy. It is important that the body regulates the blood sugar levels and it does not have too high or low glucose level. A balanced diet and the herbal tea control blood sugar level naturally. The mix of medical herbs contains marjoram. According to the University of Georgia in the United States marjoram stops the glycosylation of proteins which is responsible for the sugar level. Also, nettle, hibiscus and the dandelion is beneficial for the sugar and have diuretic properties. Hibiscus gives a beautiful bright red color that will impress you.