In addition to the Toco ^^ these are some supp's that will help protect you while you are hdl-impaired and will also help you more quickly normalize your lipid numbers once you come off.
Some have had success keeping HDL up and LDL down while on with these, it might be dose dependent on the offending compound. When I went above 50mg Anavar - oxandrolone - , nothing prevented my HDL from temporarily disappearing.
But some of the supp's below (especially the garlic, grape seed extract, and fish oil) provide a substitute HDL function while you are impaired - preventing/reducing new plaque formation and flushing ldl. The garlic studies are the oldest and haven't been negatively critiqued in any serious way thus far.
1) policosanol 20mg evening (+hdl, -ldl, blood thinner also)
2) garlic - cardiac formula dose of garlique or garlicin etc (acts as a substitute/super hdl, clearing ldl and reducing new plaque formation - also a blood thinner)
3) Niacin or inositol hexanicotinate (noflush niacin) - (one of the few substances to raise hdl - the niacin is preferred, but flushing and liver sides)
4) red yeast extract - a natural form of lovastatin, the same ingredient found in prescription stain drugs - (- ldl)
5) psyllium seed husk products/ hi fiber diet (-ldl )
6) diet high in unsaturated fats ("good fats" from vegetbles) mostly monostaurated fats which will raise hdl (olive oil, peanut oils, walnuts etc)
7) cardio, 30 minutes 3x weekly - even brisk walk - (increases hdl)
8) obviously a diet low in "bad fats" (saturated fats- meat and diary, and trans fats)
9) Fish Oil supplements or fish (better balanced than omega-3 pills) reduce risk of CV event and plaque formation .
10) Grape Seed Extract (-ldl, maybe +hdl, more important prevent oxidation of ldl and plaque formation) - similar protection as garlic during hdl-impaired periods such as during cycle and proximate post-cycle