Effects of kefir on paraoxanase activity (PON1), total antioxidant status (TAS), total oxidant status (TOS), and serum lipid profiles in smokers and non-smokers

Abstract

Some scientific evidence indicates that antioxidant-rich diets may prevent the negative effects of free radicals. In this study, we aimed to evaluate the effects of kefir consumption on paraxonase-1 (PON1) activity, total antioxidant status (TAS), total oxidant status (TOS), and serum lipid parameters in smokers and non-smokers. At baseline, PON1 activity, TAS, and high-density lipoprotein cholesterol (HDL-C) levels were lower (P0.05). Regular consumption of kefir increases the PON1 activity and TAS value in both smokers and non-smokers. It can be concluded that kefir plays an important role in favor of antioxidants in the formation of antioxidant/ oxidant balance in both smokers and non-smokers.