While I do see a lot of evidence that adopting a ketogenic diet is an effective way to drop body fat, I’m not sold on ingesting ketones as a way to mimic the effects. To me it would be like someone saying “people who work out a lot are healthy and they sweat a lot, so here, drink some of this sweat, it’s going to do practically the same thing as a workout.”
Your body produces Ketones, you don’t need to ingest them.