I recommend this book with reservations.  It is strictly an early reader book, and it is not likely to be chosen for recreational reading, which means it serves a small niche in a school library collection.  I have a hard time recommending such books, due to the limited information one gets for one’s buck, but if you need something to fit this particular niche in your curriculum, this is a good choice.  It lists examples of foods included in the protein group, including portion sizes and daily recommendations. It describes some of the benefits offered by the protein group, and offers meal/snack suggestions.  One or two simple sentences on each page accompany full-page color photos.  The full gambit of non-fiction text features are included at a rudimentary level. And it’s got a good, sturdy binding