No nuts or seeds, for several reasons.
1. Peanuts ( as well as crickets, and dried corn products ) have a very high risk of aflatoxins which are deadly to gliders.
Aflatoxin is produced by certain molds that affect Peanuts, dried corn, and crickets living in corn based products.
2. Nuts are very high in fat.
3. Gliders teeth are not designed to eat nuts and seeds. Their teeth are designed to compress the juices from foods, the pulp is spit out. The teeth don't grind nuts and seeds enough, their saliva doesn't break down the particles, nuts and seeds are not easily digested.
Feeding nuts and seeds regularly, often results in digestive blockages, constipation, impaction, often times resulting in the glider agonizingly slowly dying.
There is no delicate way to explain what it is like to watch a glider suffer this fate. Especially when it is so often avoidable by feeding safe snacks and foods.