New Study Highlights Soybean Oil and Obesity Risk
Prevalence of Soybean Oil
Soybean oil accounts for 57% of all cooking oils used in the United States and 30% worldwide. It is commonly found in grocery stores under the label “vegetable oil.”
Composition of Soybean Oil
This oil primarily consists of polyunsaturated fatty acids, including the essential omega-3 fatty acid alpha-linolenic acid and the omega-6 fatty acid linoleic acid, which constitutes more than 50% of soybean oil.
Health Benefits and Risks
Previous studies have suggested that soybean oil may provide some heart-health benefits. For example, a study published in September 2021 indicated that substituting saturated fats with soybean oil could lower cholesterol levels and reduce the risk of coronary heart disease. However, other research has raised concerns about the excessive consumption of soybean oil and omega-6 fatty acids, linking them to various health issues such as ulcerative colitis, neuroinflammation, type 2 diabetes, dementia, and obesity.
Expert Insights
Sonia Poonamjot Deol, PhD, an assistant professional researcher at the University of California, Riverside, commented on the significance of cooking oils in our food system. She noted, “Cooking oils are an integral part of our food system and are used not only for cooking in home kitchens but also in restaurants. They are also increasingly being incorporated into processed and ultra-processed foods. Increased consumption of [certain] fats is linked to the development of many metabolic and inflammatory diseases, including obesity.”
Importance of Understanding Soybean Oil’s Role
Deol emphasized the necessity of understanding how soybean oil, being the most widely consumed edible oil in the U.S. and the second most globally, contributes to the development of obesity. Her insights are part of a new study published in the Journal of Lipid Research, which explores the relationship between soybean oil consumption and obesity risk.