CHCECE004 - Understanding Of Nutritional Requirments

I have been stuck on the assessment for a while now and can not come up with anything other than; by having an understanding you know what foods help children grow and develop and which foods don't really assist in that..

Not sure if this is correct but will appreciate any help offered thanks.

Question; Explain how an understanding of the nutritional requirements for children impacts on the foods offered to children in an education and care service.