You can take amaranth for accumulated heat in the spleen and stomach, however, the drug is more specialized in treating diseases such as damp-heat in the large intestine as well as liver fire.
Amaranth is a heat-clearing herb, and the drug, if chosen medicinally, is primarily the dried above-ground portion of the Amaranthus plant of the Amaranthaceae family. Because the drug can clinically clear heat and detoxify (remove heat and toxicity), cool the blood and stop bleeding, and belongs to the large intestine meridian, it treats mainly diseases caused by damp-heat in the large intestine such as blood in the stool, hemorrhoidal blood, discharging of blood from a leakage (excessive or dripping menstruation), and bloody diarrhea.
In addition, the medicine can also treat carbuncles, boils, dan yu (acute infectious disease where the skin is seen to be reddened as if coated with paint), as well as snake and insect bites, eczema, etc., arising from the prevalence of fire-heat and toxin.
In addition to this, accumulated heat in the spleen and stomach can also be treated with Huanglian and Gypsum. People with cold spleen and stomach, intestinal slippage and diarrhea should avoid taking Amaranth. Specific medication should be consulted with a doctor. The effect of single medicine is limited.