i've never tried capsules, i usually go to an asian/pakistani shop/store, and buy a large bag full, it's very cheap. and take about a small handfull and just chew it.when i was on holiday in pakstan, i found a distilled form, and it was fantastic.as with anything there is a limmit to how much you can consume. i dont think there is a written limmit on an overdosage of fennel, but i'm sure that 1 tablet 3 times a day shouldnt overdose you.