what kind of nuts are used to make a therapeutic pillow?

Question

nuts of course are left in shell-

Answer 1

Buckwheat and ground walnut shells are two popular choices.

Answer 2

I think they use Beans, I saw a green beans pillow once. They can be heated up in the microwave and use to relive period pains.

Kidney beans versions are also widely available. It seems like the bigger the bean the longer it can store to heat.

Answer 3

flax seeds

Answer 4

coconuts