Like other anabolic steroids, nandrolone hormone interferes with the HDL and LDL ratios, causing cholesterol problems. Its ability to suppress HDL (good cholesterol) production is greater than that of testosterone, and can cause real problems for those with cholesterol and blood pressure problems. To eliminate the risk of cholesterol-related health problems, users should implement a cholesterol friendly diet and lifestyle. Perhaps the biggest problem associated with nandrolone use is suppression of natural testosterone production. While all anabolic steroids will suppress the production of natural testosterone, in the case of genuine Deca-Durabolin usage the suppression is extreme since the drug is a 19-nor anabolic steroid. Users must supplement with exogenous testosterone and implement an appropriate Post Cycle Therapy to avoid the problems associated with a low testosterone condition.