My husband (Bob) and I (Rusty) are both doing this study together. I have Hashimotos and have very limited foods that I can eat. I can’t eat anything in the nightshade family, which eliminates Ashwaganda for me. It is in several of the tincture formulas that I would like to make and take but am wondering if Rhodiola would do as a good substitute for Ashwaganda?