What's the true truth about saturated fats? So I am looking for a good reliable source about the truth of saturated fats. Preferably one with primary sources listed.

Saturated fats have been contested a lot in nutrition and I am trying to get the story straight. Most of the fitness linked articles link sat fats to increased levels of testosterone, which promotes muscle growth, but obviously such articles can ignore other side effects of of the fats.

I mainly ask because I LOVE coconut and its pretty much all sat fat and I know that some recent research says coconut oil is about as unhealthy as butter.

Help please :)