Please note that werewolves are fictional creatures. You can make up stories as to what harms them or what makes them stronger, if you like.
There is no sunflower oil in butter.
peanut butter!
no
butter cups.'
no
Unless you have some kind of allergy, you may substitute sunflower margarine for any kind of margarine or butter.
Only if it is directly feed to the child
Because butter contain saturated fatty acids and cholesterol; it is a product of animal origin.
Possibly a bland flavored oil (such as sunflower). But the result will not be as good.
Soybeans or sunflower seeds. You can buy both as an alternative to peanut butter also.
You could use almond butter or peanut butter.
Vegan butters like butters made from nuts, vegetable fat, sunflower seed butter, olive oil. These are all cholesterol free. Hope this helps.