I was diagnosed with an underactive thyroid June 25th also verging on type 2 diabetes, at that time my cholestorol was 5.6. I have been taking 50 micromgs of Levothyroxine daily, have changed my diet and exercised more, at second blood test (results below) my Levothyroxine was increased to 75 micromgs, my blood glucose level had improved and doctor was happy (although I have made an appointment to see diabetic nurse again to continue trying to improve further). However my cholestral is now 6.4 and doctor has advised I may need to take statins if not improved at next blood test in November. I wonder how I can lower it myself? I have bought Benecol drinks which are supposed to be beneficial but can't understand why it has risen when I have been so careful with my diet and (although not fully medicated) my thyroid condition was being addressed. Originally serum TSH level 8.05 mU/L (now 5.56 mU/L). free T4 level 7.4 pmol/L (now 12.6 pmol/L). Has anyone got any advise?