Debunking the Myth: Dietary Fat vs. Carbohydrates in Obesity Development

Dr. Mayalata Dimpal

Abstract: Fats in the diet have long been regarded as a leading factor contributing to obesity, and as a result, low-fat dietary recommendations were made widely available. However, newer research suggests that the development of obesity may be influenced more by refined carbohydrates and lack of exercise than they are affected by dietary fat alone. This review critically assesses the scientific evidence available comparing the effectiveness of low-fat vs. low-carbohydrate dietary approaches, takes into consideration the metabolic pathways that apply to energy expenditure and storage, reviews the effects of processed foods and added sugars on the process of lipogenesis, and determines how the development of Metabolic Syndrome and insulin resistance occurs. The results of this evaluation point out that excessive consumption of refined carbohydrates, particularly in conjunction with sedentary behaviour, are more likely to impact obesity development than the effects of dietary fat alone via enhanced de novo lipogenesis, altered insulin signaling, and altered metabolic homeostasis. As a result, the change in this paradigm will affect the nutritional recommendations and guidelines provided by health professionals, as well as public health interventions regarding obesity control and prevention.

Keywords: Obesity, Lipogenesis, Carbohydrates, Dietary Fat, Insulin Resistance, Metabolic Syndrome, Physical Activity, De Novo Lipogenesis

How to Cite?: Dr. Mayalata Dimpal, "Debunking the Myth: Dietary Fat vs. Carbohydrates in Obesity Development", Volume 14 Issue 12, December 2025, International Journal of Science and Research (IJSR), Pages: 1612-1619, https://www.ijsr.net/getabstract.php?paperid=MR251219231317, DOI: https://dx.doi.org/10.21275/MR251219231317