According to Traditional Iranian Medicine (TIM), health preservation and disease prevention are prior to disease treatment. To get this aim, there are recommendations in TIM such as appropriate physical activity (1) and appropriate nutrition which are introduced as two parts of six principles for healthiness (2). Today, these two factors are very important for health preservation and disease prevention too (3). Representing viewpoints of Ibn Sina (Avicenna), one of the greatest Iranian medical scientists about nutrition is the purpose of this study in order to find out the best quality of nutrition because nutrition is one of the most important things to survive man, which is effective in all aspects of his/her life. Therefore, health and disease of an individual, society, and generations depend on it.