Wishing you all the best of luck on your journeys ladies, but I just wanted to mention incase these supplements are expensive, that the claim that cassava helps with twinning is unproven and in fact it is more likely that the 'link' with the Yoruba tribes high twinning rate was more to do with the fact that they are a smaller tribe, where people are possibly more closely related with the 'twinning gene' just being passed on more through the female line due to this. I noticed the site selling this supplement doesn't actually mention what the 'fertility ingrediant' is, and the claim of 50% or more chance???
If I'm right then the only ways to increase twinning would be through clomid whether prescribed or brought unprescribed off the internet.
Just research and don't waste any money you can't afford to lose ladies!!