Agree with the sentiment. But in this instance the data, preliminary as it is, is pointing towards "no effect" in humans.

This is true of both animal studies, and preliminary statistical data on the few humans that have been trying CR for a few decades now. There is health improvement, but that's because CR is watching your diet, which is generally good for you. You correct for those factors and the effect basically disappears, at least into the high level of noise that comes with low sample sizes.

But if you still believe in CR, even easier is taking resveratrol. My understanding is that the caloric restriction basically causes the production of resveratrol which is the cause of the beneficial effects in mice. So take resveratrol and eat a normal amount of healthy food should have the same result.

For me CR is not so much interesting for the health benefits, rather the ability to self control and not submit to any feeling of hunger immediately.

I found stimulants (e.g. coffee or something stronger) achieve that quite well.

Indeed, coffee works well to cut the feeling of hunger. Also, just drinking a lot of liquid works too.

It's not because it's unknown we should assume this effect scales linearly, either..