Ashwagandha dosage???

Sophie • TTC #1 in my 30s with Endo and Hashimoto 🤞💓

I read a lot about ashwaghanda, its pro and cons and decided I would like to take it .. most sources I trust say to take about 1/2 teaspoon per day...I would much rather take a tablet so I was wondering if anyone knew how many grams that would be approximately???