I got mine from the local naturopath, and each tablet is 2g. She told me to take two each day during the third trimester, but I was a little wary about starting a dose that high for two long. In any case I didn't get them until week 37 so I was late anyway lol. I did notice that I'd get BH after taking them, so they're definitely doing something! She also told me to keep taking them after the birth, they can help with milk production and getting the uterus and tummy muscles all back into place