Turmeric
The Essentials

It is the best-studied cooking spice for calming inflammation, and most of that effect comes from curcumin (the yellow compound that gives turmeric its colour).
Your body absorbs very little curcumin on its own. Black pepper (which contains piperine) and a little fat are what help it get in.
Good-quality trials show real relief in knee osteoarthritis, plus small improvements in blood sugar and blood fats.
A daily pinch in food is safer and easier to keep up than strong extracts, which can interact with medicines and, rarely, harm the liver.
Turmeric (Curcuma longa) is an underground stem — a rhizome — from the ginger family. Its main active compound, curcumin, gives the root its bright gold colour and is the part researchers have studied most for inflammation and cell health. People across India, Persia, and Southeast Asia have cooked with it and used it as medicine for thousands of years.