The link takes you to the USDA's Nutrition.gov Web site. The Web site has an enormous amount of useful information, but I would not call it a teaching too. It is a good resource for better understanding the large nutrition programs that students may have heard in the news and want to know more about. I gave it 3 stars because it is not a unique Learning and Online Teaching tool.
The Web site is easy to navigate if you are looking for information about a specific government led nutrition campaign, such as Let's Move and the current Dietary Guidelines.