Make sure you haven't handled food beforehand. If you have wash your hands to get rid of the smell. Try using gloves that way she won't like the taste. Then after a while stop using them when she does try to bite anymore. Also if your picking her up try doing so from behind so she can't reach your hand. If you have a towel or cuddle sack try picking her up with that.
Lina don't bite me when I pick her up. Her bites came from from all of her nibbling. I washed my hands, but she still nibbles it. She is 4 months old. I hold her by my chest with my two hands. She would squirm around until she finds my fingers then she calms down and nibble them.