Question for nursing moms. Please note that I am not asking this in order to loose weight but to make sure I am getting enough calories for nursing.

I struggle to get enough calories in a day for both me and Juniper. I've been using MyFitnessPal to make sure I am getting enough calories and nutrients. I'm not getting enough calcium and protein. In the past I would drink protein shakes to add more calories, protein, and calcium. I am still taking my prenatal vitamins. Does anyone have any good recommendations for good protein shakes for nursing?