You must also be very careful when preparing the cassava root (bitter or wild - as used in Africa)
as the peelings contain the toxin (Cyanogenic glycoside)
The roots should be peeled,
soaked in water 1-3 days (refreshing water at least once a day),
drained and rinsed and then finally cooked.
It has also been noted that if one consumes the cassava root before ovulation it have the reverse effect of causing infertility.
The cassava root should be consumed after ovulation for some time before conception to increase the chance of hyperovulation.
Taking folic acid also increases the chances,
as well as consuming dairy products,
conceiving over 40-45 years of age,
maternal family history,
healthy diet and bmi over 30.
Best of luck and take care.