The tuber is very healthy and you can eat it anytime without problems. But the leaves and the roots are a different story. It is full of cyanide. Oh my.
Cassava is a famous tuber in tropical countries like in South America, Africa and some parts of Asia. They boil it and eat the tuber as is. It can also be made into a cassava cake. And there is no cyanide in that. You can be sure about it.