Thanks for reading and commenting, Joel. It was her main project (called "Let's Move, link below) throughout the eight years her husband was president. Much of it drew a lot of debate at the time, but the calorie count aspect was included in the original Obamacare legislation but not implemented until 2018.

Interestingly, McDonald's was the first to adapt it (long before the law went into effect). Others did so over time. I haven't seen studies on it but I can cite my own example of benefiting from it: I've lost 20 pounds. So I find it pretty helpful. Thanks again.

This site stopped being updated after 2017 (when they left office) but it shows things they did at the time:

https://letsmove.obamawhitehouse.archives.gov/about