What do you know about DepEd's circular regarding the foods served in school?

Answer 1

Go to the US Dept of Education and browse around. For instance, I found this, "Calories In,Calories Out: Food & Exercise in Public Elementary Schools" at this site:

http://nces.ed.gov/Pubs2006/nutrition/

The individaul states also maintain websites with specific information regarding food and nutrition along with state guidelines. For instance the California Dept of Ed offers many school nutrition links here:
http://www.cde.ca.gov/ls/nu/he/mealmenu.asp#snp

I hope that helps!