The main objective of the First International Conference on Bio-antioxidants is focused on all fields of chemistry and biology of bio-antioxidants related to innovative and current topics. The study of the antioxidant inhibiting activity is an exciting challenge from both experimental and theoretical viewpoints. In recent years, a substantial body of evidence has developed, supporting a key role for oxidative processes in many fundamental cellular reactions and suggesting that oxidative stress might be important in the pathophysiology of many common diseases, including inflammatory processes, atherosclerosis, chronic renal failure, diabetes mellitus etc. The introduction of antioxidants in the affected body normalizes not only the peroxide oxidation, but also the lipid content. Antioxidants used in oncology are effective in the first stages as mono-therapy with antioxidants at high concentrations and at the last stages mainly as additives in the complex tumor therapy - the antioxidant is in low concentrations. In this respect the medical treatment of most of diseases includes formulations based on a combination of traditional drugs with targeted functionality and different antioxidants. Capacity of antioxidants has at least two sides: the antioxidant potential, determined by its composition and properties of constituents which is the subject of food chemistry, and the biological effects, depending, among other things, on bioavailability of antioxidants, which is a medico-biological problem. Thus bio-antioxidants are believed to be essential for the body defense system against oxidative stress and the interest has increased remarkably in finding natural bio-antioxidants or their synthetic analogues for use both as new drugs and in foods and medicinal materials. Following this trend, during the last decade the antioxidant properties of biologically active compounds, have been subject of growing interest. Multidisciplinary topics with related fields such as oxidative stress and human health, natural bio-antioxidants, synthetic analogues of natural products, homogeneous and heterogeneous lipid oxidation, food analysis and food additives/supplements and advance methods for study and analysis of bio-antioxidants will be strongly encouraged. High-level scientific contributions including basic research and industrial applications will be particularly appreciated.