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Nearly 55 per cent of UAE residents lack awareness about the smoke points of commonly used cooking oils, raising concerns among health experts about the risks of using unsuitable oils for high-heat cooking. While a recent YouGov poll revealed dismal data, the survey also had a promising finding -- over half, i.e., 53 per cent of the residents mentioned that they would consider switching to oils with higher smoke points if informed about the associated health benefits.
The smoke point of a cooking oil is the temperature at which the oil starts to visibly smoke and break down. Experts warn that overheating oils such as extra virgin olive oil, flaxseed oil, or even butter can lead to the release of harmful compounds, including acrolein, a chemical linked to respiratory irritation.
Overheated oils produce harmful compounds
Dr Dana Al-Hamwi, a clinical dietician at Dubai London Hospital, said, “Raising awareness about oil smoke points is crucial. When oil reaches its smoke point, it breaks down and releases harmful compounds and toxic fumes. Using the wrong oil for frying can produce free radicals that may contribute to inflammation and chronic diseases, affect the taste and quality of food, and might lead to digestive issues and discomfort.”
Other specialists, too, reiterated that when these oils are overheated, they degrade and produce harmful compounds and free radicals.
Swapna Mary John, Clinical Dietetics, International Modern Hospital Dubai, said, “Acrolein is a respiratory irritant that can cause coughing, wheezing, and throat irritation, especially in poorly ventilated kitchens. Over time, repeated exposure to oxidized fats and toxic byproducts has been linked to inflammation, cell damage, and an increased risk of chronic diseases such as cardiovascular issues and even certain cancers.”
Doctors advise consumers should begin by checking the label — refined oils typically mention “refined” or “suitable for high heat.” For high-temperature cooking methods like deep frying or stir-frying, stable oils such as avocado oil (smoke point ~520°F), refined olive oil (~465°F), ghee (~450°F), and peanut oil (~450°F) are recommended.
Store oils properly
Dr Jyothsnadevi, Specialist Internal Medicine, LLH HOSPITAL, Musaffah, said, “These are less likely to break down and release harmful byproducts. For low-heat cooking or finishing dishes, cold-pressed or unrefined oils like flaxseed or unrefined olive oil are suitable, but these should not be exposed to high heat. It’s also important to store oils properly, in a cool, dark place, and avoid using oils that have a burnt smell or produce visible smoke.” See details.
Source: Online/OFA
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