Citation: Gundu HR Rao. "Diet, Nutrition and Cardiometabolic Health". Acta Scientific Nutritional Health 2.12 (2018): 26-33. In a view point published in JAMA titled, "The challenge of reforming nutritional epidemiological research", Loannids writes, "Some scientists and much of the public, often consider epidemi-ologic associations of nutritional factors represent causal effects, that can inform public health policy and guidelines [1]. However, the emerging picture of nutritional epidemiology, is difficult to reconcile with good scientific policies. The field needs radical reform." To explain the complexity, he further states, that in recent updated meta-analyses of prospective cohort studies, almost all foods revealed statistically significant associations with mortality risk [2]. In a short review like this, it is rather difficult to cover all aspects of diet, nutrition, as they relate to cardiometabolic health,-another Abstract Keywords: Diet; Risk Factor; Nutrition; Cardiometabolic Nutrition plays a key role in the prevention of cardiometabolic diseases, which contribute significantly to the development of cardiovascular disease, the leading cause of death worldwide. Day to day diet, influences a broad spectrum of cardiometabolic risk factors, including hypertension, excess weight, obesity, metabolic syndrome (a cluster of known metabolic risk factors), dyslipid-emia, impaired glucose metabolism, type-2 diabetes and vascular diseases. According a report by Houston and associates, 80% of the coronary vascular disease [CVD] can be prevented with optimal Nutrition, coupled with of course, exercise, weight management, mild alcohol consumption, and smoking cessation. Among all of these factors, optimal nutrition provides, the basic foundation for prevention and treatment of CVD. Bergeron and associates have put together a comprehensive monograph, on Nutrition and Car-diometabolic Health. Cover page of the book states, "international experts present state-of-the art reviews of dietary and lifestyle effects on metabolic systems associates with cardiovascular health and disease. It covers broad range of topics, including biological and behavioral process regulating food intake: lifestyle and various approaches to weight loss; nutritional considerations for optimal cardiometabolic health across life span; the relationship of macronutrients, whole foods, and dietary patterns to diabetes and cardio-vascular disease; and diet as modulator of gene expression, epigenetics and the gut microbiome and the relationship of these traits to disorders of metabolism". In a short overview like this, we will not be able to discuss all of these very important topics. We will discuss few examples to illustrate the importance of diet, nutrition, and lifestyle for better cardiometabolic health.