THANKS - where can I get bulk turmeric powder?
That reminds me of a tour I took of the French's Mustard plant. They had huge piles of tumeric, in maybe 50-100 lb sacks. It is an ingredient in yellow mustard. So maybe eating more yellow mustard would be healthful.
Try here: http://www.indiamart.com/topinternational/#turmeric-powder
Check with some organic produce shops or even Wild Oats. International markets should have ton of it in bins.
Do you have any South Indian friends/neighbors? Ask them where they get it. (Be careful about purchasing it from other places as many spices are adulterated. Your friends, if really South Indian should be able to tell the difference in taste between the adulterated foodstuffs and the real turmeric.)