The Agriculture Department introduced an updated pyramid guide in 2005 that incorporated new nutritional standards. It retired the pyramid idea altogether in 2011 and now uses the MyPlate concept, which stresses eating a healthy balance of different foods based on factors such as age and sex.

Fox News medical analyst Dr. Marc Siegel discusses RFK, Jr. and Pete Hegseth's fitness challenge as they encourage Americans to eat healthier and exercise.

Health Secretary Robert F. Kennedy Jr. and Defense Secretary Pete Hegseth competed in a fitness challenge of 50 pullups and 100 pushups under five minutes.

Jesse Watters: "Why do you wear jeans when you work out." RFK Jr: "Well, I just started doing that a long time ago... I would go hiking in the morning and then i'd go straight to the gym." Robert F. Kennedy Jr. explains why he was wearing jeans during the "Pete and Bobby… pic.twitter.com/j5HIIRntGP

The 224-pound, fast-food-loving president has supposedly inspired two of his cabinet secretaries to adopt healthier habits.

RFK Jr. hasn't completely alienated all his famous in-laws, however. Earlier this week, Chris Pratt came to the defense of the politician, whose cousin Maria Shriver is the mother of Pratt's wife, Katherine Schwarzenegger.

The 71-year-old’s odd workout clothing choice caught the internet’s attention again this week after Kennedy posted a video with Defense Secretary Pete Hegseth.

Chris Pratt appeared on Bill Maher’s 'Club Random' podcast on Monday, Aug. 18, and briefly touched on the controversial political views of Robert F. Kennedy Jr., who is the cousin of Pratt's wife, Kat