Turmeric is available in different forms - Stem, powder, decoction or lotion, and as oil.
It is the best to include turmeric in your diet system regularly.
However, if the food is over-cooked by keeping in high flame for longer durations, you will lose all the nutrients in your diet. Hence, please ensure 100% that the food is cooked at the right temperature.
You can add turmeric in your glass of milk as well.
Chewing a piece of turmeric will help your resistance/fight against diabetes and its harmful effects.
Here is a small chart highlighting the quantity of consumption of turmeric:
Cut roots of turmeric 1.5 to 3 gm daily
Powdered turmeric roots 1 to 3 gm daily
High quality (certified) turmeric powder 400 to 600 milli-gm daily
Turmeric liquid extract 30 to 90 drops daily
Decoction (turmeric) 15 to 30 drops daily