A: Actually many people like to wait till the child is one to introduce nuts to their diet but there really is no conclusive study that tells an ideal age to start feeding nuts. Cashews like other nuts can have allergic reactions so you will have to start by trying very little to see how your baby responds to it and then you can slowly increase the quantity to what would be age appropriate. Since eating them as a whole may choke your baby you can break them down into small parts or even give it in powdered form. You can add the powder to his milk or food to enhance the flavour. The benefits of it are no doubt plenty from strengthening the immune system to improving brain functioning. It is also unsaturated fat that is beneficial for the body. ... See more