This ahaar ras is circulated around the body as the ras dhatu through the srotas - channels. This nourishing ras in which are inherent building blocks of all dhatus, thus reaches all the parts of the body.
*The digestive action of the agni - enzymes replenishes dhatus and produced ojas. Pitta plays a vital role in this entire digestive process. So ayurveda does not differentiate between pitta and agni.
*Aamatoxins - When the ahaar ras nutritive part of the ingested food is not properly digested due to decreased activity of agni or enzymes, it turns toxic and is called aama ras or toxins. This causes various ailments in the body. As toxins are not acceptable to the body, they accumulate in different body parts like lungs, heart and other organs. The four cavities that usually attract toxins are the brain, chest, abdomen and rectum of which, the abdomen is the most common site of aama ras accumulation. This leads to dyspepsia and other disorders.