NUTRITIONAL SUPPLIMENTS AND ANTIOXIDANTS:MYTHS AND TRUTH

Have you ever wondered what exactly is nutritional supplements? What they offer in the body ; Why gets crowded ; What are 

antioxidants and what is oxidative stress? On the scientific article you read will be fully informed regarding each substance  separately , one by one , either vitamin or antioxidant , when should you ever take should not be taken and what 
it offers to the organization.
                     
                   On 14 December 2014 the European Commission endorsed the report of the European Agency Foodborne Safety 

(EFSA) on the antioxidant substances. Since that day many dietary supplements can no longer rely antioxidant properties , giving the label or by using it in advertisements. This decision created a sensation and perhaps contributed further to consumer confusion , rather than the opposite.

What are antioxidants and oxidative stress ;

                  Chemically , the antioxidants are molecules able to slow or stop the oxidation of another molecule acting as electron donors , thereby stabilizing other reactive molecules ( oxygen and nitrogen) . These chemical reactions depends and from the environment where they take place (pH, temperature , etc. ), so an antioxidant in a different environment may behave as oxidative .

                  In the human body these unstable molecules , such as reactive oxygen species ( particularly free radicals) cause damage to lipids, proteins and DNA, that are responsible for the loss of correct operation of the cell, the aging and cell death .To defend the cell from oxidative stress using a series of enzymatic and non - enzymatic mechanisms are the endogenous antioxidant defense , such as glutathione . Nutrition plays an important role in enhancing the capacity of antioxidant systems reminder of the organization. With food hire Microdata with esogeni antioxidant components involved in molecular cellular antioxidant systems and elements that stimulate the synthesis and function of the endogenous antioxidant system. 

                           The use of antioxidant foods for health and their ability to prevent aging and chronic degenerative diseases is now one of the most controversial aspects of medicine. From the one published continuously new research supporting the important 
preventive or therapeutic benefit of some of these substances than the other usually is impossible to prove that their ability to nutritional investigations in humans.

           

                          Antioxidants supplements sell increasing quantities and in many countries available even outside the traditional spaces , their pharmacies.As scientific research has not yet managed to give a final answer, the EFSA has recently published a study that reduced the importance of the these substances as dietary supplements.First of all, EFSA considered that the indication in food antioxidant ¨ ¨ and ¨ ¨ antioxidant is no longer appropriate , and not necessarily correspond to any health benefit . It should instead be used as indication ¨ protecting cells from oxidative stress ¨. Also,the EFSA for most substances examined not found a real causal relationship between intake of the substance and   antioxidant , such as to protect the cell from oxidative stress.Maintained their reputation as antioxidants capable of protecting us from oxidative stress only a few vitamins ( vit. C, vit. E, vit. B2) , some minerals ( selenium , zinc , copper) and polyphenols in olive oil .As vitamin C actually mean the family of derivative of alpha-tocopherol ( tocopherols and tocotrienols ).

                        Chemical substances fat burners carried in our body from the plasma lipoproteins and distributed in cell membranes and fat stores in the body, acting as inhibitors of peroxidation fatty acids. Vitamin E is an indispensable piece of antioxidant defense system as the cell block lipiidiki peroxidative chain . The significance of this family of vitamins in combating oxidative stress and prevent the damage it causes to the body is demonstrated by those pathological situations associated with vitamin deficiency (peripheral neuropathy, retinopathy, ataxia , etc.).\