Seed Oils: Separating Fact from Fiction in the Quest for a Healthy Diet
A recent statement by US politician and environmental activist Robert F Kennedy Jr has sparked controversy over the health effects of seed oils, commonly used in Indian cuisine. With millions of Indians struggling with rising rates of diabetes and obesity, experts weigh in on whether these oils are indeed the culprit behind chronic diseases.
Dr. Balbir Singh, Chairman of Cardiac Sciences at Max Hospital, New Delhi, attributes the lack of evidence linking seed oils to harm as a major issue. "Fact of the matter is there is no scientific evidence till date to prove they can harm us," he says.
To understand the controversy, let's examine what seed oils are and how they're used in cooking. Seed oils, such as those extracted from corn, sunflower, soybean, and rice bran, contain unsaturated fats with a high ratio of Omega-6 to Omega-3 fatty acids. While some critics claim this imbalance can lead to inflammation and increased risk of heart disease, experts argue that the scientific evidence is limited.
Critics point out that when seeds are processed or refined for high-heat cooking, they lose essential antioxidants and micronutrient. "Ideally, all seed oils should be cold-pressed like olive oil," adds Dr. Singh. However, many commercial products may not meet this standard, making it essential to opt for cold-pressed and unrefined varieties.
Home use of refined seed oils isn't typically an issue if cooked at moderate temperatures, according to experts. However, restaurant practices that involve repeatedly heating unsaturated oils can lead to a decrease in antioxidants and nutrient loss.
Ultimately, the key to a heart-healthy diet lies not in cutting out seed oils entirely but in maintaining a balanced approach, reducing consumption of processed foods with high sugar, corn syrup, and sodium content. "Practise moderation for all oils" and adopt healthier cooking methods like stir-frying or baking, experts recommend.
As India navigates the growing health crisis faced by its population, understanding the nuances of seed oils can provide valuable insights into creating a more informed approach to nutrition.