That is great to experiment with different vegs and fruits and try to find the best combination. I have never used tumeric in my smoothies but I love it in my cooking. Also you made me recall the moment when I was experimenting in fruit yogurt, I took fresh plain yogurt and added mango and strawberries, did not eat that evening but in the morning. I was quite shocked how bitter was the taste of it, I still have this taste when I am writing. My son refused to eat it and I could understand him very well. I just picked up the fruits and have to dispose the yoghurt. I believe it was Mango that made this funny taste. Since then I eat Mango just separate and really enjoy it :)