I've been asked a few times lately about exogenous ketones and whether I thought they were a good/worthwhile supplement to take for fat loss. First, let me say I'm not an expert in this area nor do I have a chemistry background. However, from my research there are a few cases where ketone supplementation is worth looking into.
1) You are already in or going into dietary ketosis. Supplements do appear to help you get there and stay there. They also appear to provide a buffer against carb slip ups while you are in dietary ketosis.
2) You are a high level athlete on a restricted calorie diet. Ketones have been shown to give extra energy to athletes during time of high physical demand when calorie consumption is deficient to support activity.
For the rest of us, don't waste your money. Some studies show that in average folks, it actually restricts fat burning because the body will use the ketones in the supplement rather than fat stores. Any positive effect for the average person is probably coming from the caffeine that many of these supplements contain.
Folks, THERE IS NO MAGIC PILL! If it were easy to be healthy and in good shape, everyone would be. Unfortunately we live in a society that makes unhealthy very easy and healthy very hard.
It won't be easy. It won't be fast. And if it is, it won't last.
Accept that it is going to be hard, prepare to fight, man up and fight!