A person Who's little tummy doesn't agree with the new formula or solid foods and who is extremely frustrated with not being able to control his hands, for example. (easybabylife.com)
This milk is very high in protein, and low in sugar / fat, to make it very easily digestible for their new little tummy. (newkidscenter.com)
These vegetables are very closely related to one another, and both of them are very mild and easy on little tummies. (abckidsinc.com)