**6. Conclusion**

Food contaminants can cause consumer illness such as allergy, immunosuppression, cancer, teratogenicity, mutagenicity, genotoxicity. Therefore, monitoring of food contaminant is an important issue for the protection of public health. In order to protect public health use of many veterinary drugs for prophylactic purposes is prohibited by most of the countries. However, significant differences can arise among countries concerning the types of prohibited drugs and MRL values. This situation results in problems particularly for imported/ exported products. On the other hand, there are still some veterinary drugs that have no MRLs for even conventional animal products. In addition, animal products may include environmental contaminants associated with industrial and agricultural activities. This situation raises concerns about the presence of residues/contaminants in animal products despite strict policy of the legal authorities. Therefore, people, especially in developed countries, tended to consume organic products. However, difficulties in production of organic products thus their high prices result in the consumption of them by only certain populations, which leads to social inequality in society. On the other hand, contamination may arise due to the failure to provide the required standard in organic products. Therefore, the regulative arrangements that are launched by the EU for organic products should be expanded and put into practice at countries basis as in conventional products.
