So my son just turned 11 months, I’m exclusively breastfeeding and I recently started pharmacy school. I leave him with my mom for about 5 hrs, I pump and leave a 5 oz bottle every day with him. But I’m concerned about if he still gets hungry in between the hours. So my question is what milk can I give him ? Any kind of special formula ? We’ve tried giving him formula before when he was younger and it was just a waste of money with buying formula and bottles. So what can I do to help my mom a little bit.

Thanks in advance !