The National Dairy Council has produced a nutrition curriculum for primary to upper elementary grades, and it's available for free to teachers and homeschoolers. The curriculum includes lesson plans, worksheets, activities, and more.
Teaching health education without a formal curriculum is not as difficult as it sounds. Your local library and the internet...
Thanks for finding this and sharing it with us!!
Just wanted to share another free resource for nutrition lesson plans, this one specifically for homeschoolers. http://nutritionforhealthykids.blogspot.com/ Thanks!!!