My Cholesterol is 234. Do I need medication?

I just got blood work back and my cholesterol is high (Cholesterol 234, HDL is 64, LDL is 160, triglycerides is 27). I am normal weight, exercise all the time, rarely eat at restaurants. However, I have never paid much attention to saturated fat, so I could improve there. Should I go on medication to lower my cholesterol right away, or start with reducing saturated fat? Thanks!