The Mechanism
The digestive stimulant action of spices is mediated through two possible modes:
(i) By stimulating the liver to secrete bile rich in bile acids that are vital for fat digestion and absorption, and
(ii) By stimulation of enzymes, both of pancreatic and intestinal origin that are responsible for digestion.
The above actions lead to an accelerated overall digestive process. This results in a significant reduction in the duration of passage of food through the gastrointestinal tract and thereby lesser exposure of the body to toxic waste substances, gas formation, bloating, headaches and uneasiness.