When we think of taste, we usually think of the tongue.
In Siddha medicine, taste (Suvai) is much more than flavour. It is one of the principles used while prescribing medicines. Treatment is individualized based on the patient’s Thega Nilai (body constitution) rather than treating the disease alone.
For centuries, Siddha has described six tastes (Arusuvai), sweet, sour, salty, bitter, pungent, and astringent, each believed to influence the body’s physiological balance differently.
Interestingly, modern science has discovered that taste receptors are not limited to the tongue. Similar receptors are found in the gut, airways, pancreas, and several other tissues, where they participate in metabolism, immunity, hormone secretion, and other physiological processes.
These are known as extragustatory taste receptors.
https://www.sciencedirect.com/science/article/abs/pii/S0014299921006348?
Even more intriguing, many medicinal plants contain bitter phytochemicals such as alkaloids, polyphenols, flavonoids, and terpenoids that can interact with bitter taste receptors (TAS2Rs). Researchers are now exploring whether these interactions contribute to some of their biological effects.
Does this prove Siddha’s concept of Suvai? Not yet.
But it opens an exciting avenue for research, where ancient observations and modern receptor biology may begin to speak the same language.
Could the ancient emphasis on taste reflect more than just flavour and point toward deeper biological interactions we are only beginning to understand?
MBH/PS