hmm, I have some herba mate on the shelf.. I had to stop drinking it last year alreday, it was definitely giving me major foggy head. don't think I've dared touch that since last may or june.

I am ok with 3-4 cup of green tea a day though, I dropped the honey just a little bit of cream or milk in there. My body actually seems to miss that if I stop drinking it.

I also make a ginger drink with fresh ginger which makes me feel pretty good, just run some fresh chopped ginger through the blender, add some honey or xylitol, best steeped overnight. You can boiled the chopped ginger too to get more flavor quicker. add ice and a lime or lemon.

ginseng maybe would help too.