It has been more challenging to feed this to my baby than I anticipated based on the information on the website and other reviews. My baby (4 months) seems to not like it and she almost immediately spits out what I give her with the syringe, which is extremely frustrating. I have read the FAQs on the website and will try some of the suggestions (i.e. adding Evivo to warmed milk, making sure the syringe is in the back of the cheek, being patient and letting her get used to the syringe), but I am not optimistic. And I'm not sure I see any change in her poops or gasiness. I actually wish I did not buy 2 months supply...