This reminds me of Sheldon Cooper's suggestion to Penny on The Big Bang Theory when she was having financial problems: "You know, it occurs to me that you could

This reminds me of Sheldon Cooper's suggestion to Penny on The Big Bang Theory when she was having financial problems: "You know, it occurs to me that you could solve all your problems by obtaining more money". Weight depends on a complex interaction between many systems of the body. Losing significant weight and keeping it off in healthy way without side effects can be difficult. There was a good look at much of this in the Nova episode "The Truth About Fat" in 2020. Old Nova episodes are usually behind a paywall if you aren't a member of your local PBS station but occasionally old episodes become free for a while. It might be worth checking occasionally to try to catch it during one of those free periods.