Seed Oils and Health: Debunking the Myth

The idea that seed oils are detrimental to health is not supported by evidence. Seed oils, which are made from seeds such as soy, canola, peanut, and corn, are high in linoleic acid (LA), a type of omega six fatty acid. Research has shown that higher levels of LA are actually associated with lower risks of cardiovascular disease and mortality. Studies consistently indicate that replacing saturated fats from red meat and animal products with polyunsaturated fatty acids (PUFAs) from seed oils can reduce the risk of heart disease. Claims about the harmful effects of seed oils are primarily based on studies with rats or are mechanistic in nature, rather than human clinical studies. However, it is important to note that the main dietary source of seed oil consumption in the US is from ultra processed foods. Therefore, reducing seed oil consumption by limiting ultra processed food intake could be beneficial, but simply replacing seed oils in an otherwise healthy diet pattern may not yield significant health benefits.