16 Printed educational materials in the field of nutrition; Printed instructional, educational, and teaching materials in the field of nutrition; A series of printed books, printed articles, printed handouts and printed worksheets in the field of nutrition; Printed articles in the field of nutrition; Printed workbooks directed to nutrition; Printed worksheets in the field of nutrition; Printed educational publications, namely, worksheets, articles, and workbooks in the fields of nutrition; Printed materials, namely, written articles in the field of nutrition