The aims of this study were to clarify the effects of high dietary supplementation with boric acid and
borax, called boron (B) compounds, on lipid peroxidation (LPO), anti oxidant activity,some vitamin
levels, and DNA damage in rats.Thirty Sprague Dawley male rats were divided into three equal groups:
the animals in the first group (control) were fed with a standard rodent diet containing 6.4 mgB/kg, and
the animals in the experimental group were fed with a standard rodent diet added with a supra-
nutritional amount of boric acid and borax (100mgB/kg) throughout the experimental period of 28
days. The B compounds decreased malondialdehyde (MDA), DNA damage, the protein carbonyl content
(PCO) level in blood,and glutathione (GSH) concentration in the liver, Cu–Zn superoxide dismutase
(SOD), andcatalase (CAT) activity in the kidney.The B compounds increased GSH concentration in
blood and the vitamin C level in plasma.Consequently,our results demonstrate that B supplementation
(100 mg/kg) in diet decreases LPO, and enhances the antioxidant defense mechanism and vitamin
status.There are no differences in oxidant/antioxidant balance and biochemical parameters except for
serum vitamin A and liver GSH concentration,between the boron compounds used in this study