Removing plaque build up naturally.

I'm 33 and my dad who is 63 has been diagnosed with heart disease and underwent surgery recently. I was little overweight and careless all these years but the moment my dad was sick I realized I have to take care of my health as well. I started walking and dieting and lost 4 kgs in 2 months. I have cholesterol levels higher so doctor suggested me to take statin 5 mg. I also went through ECHO ECG and TMT recently and everything was looking fine. I'm not diabetic and I don't have BP issues as well. But I have cholesterol complaints for which I'm slowly changing my lifestyle also taking 5 mg statin. I understand leading health lifestyle will prevent the plaque from building up in arteries hereafter. But how to clear already build up plaque if any? Is there any specific diet for that? Kindly advice.