Can my 22 month old eat too many pickles?

My 22 month old loves eating dill pickles - she eats other foods as well, and we feed her a pretty healthy selection of foods. Then she discovered pickles and that's all she seems to want to eat! I try to get the pickles that are a little lower in sodium, but all pickles are made with a a lot of sodium. She eats the little dills - how many of these can she consume a day? As I said, we only feed her a healthy selection of foods and right now she just demands "pickles!".