The use of supplement & drugs to enhance performance has become a part of mainstream players. Numerous cryogenic aids that claim to enhance performance in sports are used by professional athletes. More interest is current shown for the contribution of nutrition to optimize training and athletic performance. About this often, scientific studies cannot provide absolutely clear answer to the questions under study. Beta Blockers can enhance performance in sports such as golf and shooting events and therefore have been banned. Divertics increasing urine production, Anabolic steroid use increase muscle mass and strength and reduces body fat, which can improve performance in strength type sports activities. Blood dopping, erythropoietin, oxygen supplementation Amino acids, and creative can also increase sports performance protein & carbohydrate supplementation provides modest benefits with no major adverse effects. An understanding of their products is essential for the sports medicine practitioner to provide sound, safe advice to the athlete. Substance or phenomena that improve an athlete’s performance are referred to as Ergogenic aids. Purpose of this study is to find out the effects of Ergogenic aids on sports performance. This study to base on the researcher’s personal observation after read many books, research papers & documents of Ergogenic aids.