You can eat yourself healthy,the French , they apparently have an unhealthy diet but paradoxically they don't , the Mediterranean diet is healthy and good,
While it's true that your own body can produce unhealthy levels of cholesterol , you can help the statins and any other medication the gp might have prescribed .
I had a partner with high cholesterol who the gp wanted to put on meds for cholesterol, I don't think they were statins , the gp gave him 3 months to lower his results so he did more exercise and we changed foods low dairy, olive oil, pasta, veg, no meat , all fish , glass or two of red wine and he managed it and lost a few pounds as well.
( there was a rare steak a month ,
Of course I don't know if he broke out at lunch but I suppose the results showed once he started he made a lot of small healthy choices)