Do I have drink milk now?

I asked my gynae if I should drink maternity milk, she say it’s optional. It’s good as a healthy snack and good if your diet is healthy. The sugar level in the maternity milk must also take note as some brands can get quite sweet. My baby’s size is abit big at 25th weeks with her weight at 888g. My gynae told me I need to watch my sugar and that maternity milk is only for me as a healthy snack when I’m craving for sweet stuffs