I stuck to a handful of soaked almonds and walnuts daily to keep my insulin levels stable. Just don't overeat them, a small handful is more than enough.
Soaked almonds and walnuts are great for baby's brain. But don't eat too many hot nuts like cashews or raisins in large amounts. If you feel any heat or stomach pain, consult your doctor.
I ate almonds and walnuts like a squirrel during my twin pregnancy! They are great for quick energy when you are too tired to cook. Just avoid salted or fried ones.