The food categories are further grouped under the general headings of Seafood, Produce, Dairy, Meats, and Combination Foods (i.e., foods composed of a mixture 
(The food categories; are grouped; L:under the general headings of Seafood, Produce, Dairy, Meats, and Combination Foods; T:further) (foods; composed; of a mixture)
The food categories foods
are grouped composed
L:under the general headings of Seafood, Produce, Dairy, Meats, and Combination Foods T:further
of a mixture