In the Materia Medica for turmeric you indicate curcumin is unstable in acidic aqueous solutions as well as alkaline aqueous solutions. I have done a morning tonic for years using turmeric, ginger, black pepper and either ACV or lemon along with a small 1/2 tsp of honey and ghee or coconut oil but am now wondering if the acid portion is a problem and should be left out? There are also lots of drinks on the market combining turmeric and lemon or ACV so are they promoting a health benefit that is inaccurate if the curcumin is de-stabilized? But that led me to another question regarding the other components of turmeric that provide benefit that may not be de-activated the same way, or is it difficult to know, if they haven't been appropriately identified and tested like curcumin has been? Love the deep dives you take us on!

David said: Most of the other constituents haven’t been tested for stability since all the focus is on curcumin, and if you add turmeric to an acidic juice or vinegar over time it will degrade the curcumin. If you do it for a few minutes before you drink it, it will be fine. The commercial products though that sit on a shelf or in a refrigerator with juice in them, people are not getting the curcumin levels they think they are.