What is the most convincing study that shows the health benefits of a ketogenic diet?

I came to this sub as other groups felt more like a cult and while I had great results on keto over the last 10 months in terms of weight loss, my blood work is mixed. Cholesterol initially dropped from really scary bad to perfect 2 months into my diet but last results were very high on uric acid (guess upping fat would help), cholesterol and even sugar went slightly up to 100, so I went back to reading about pros and cons of my diet and while I feel good and would have no issue sticking to the diet from a taste perspective, these videos that tell me to not worry about high cholesterol don't take my worries away when they only point at the poor quality of studies that show that cholesterol is bad.

In short, where is the study on keto relation with all cause mortality?