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Supermarket shelves are filled with various cooking oils, ranging from budget-friendly sunflower oil to premium avocado oils which promise nutritional advantages.

Fats and oils have long been at the center of nutritional debates, and to grasp why it matters, it is useful to examine the different types of fatty acids they include.

Not all fats behave the same way in the body—certain ones increase blood cholesterol while others assist in reducing it.

Cholesterol is a naturally occurring fatty substance made in the liver and can also be found in certain food items we consume. Too much LDL cholesterol can lead to a accumulation of plaque inside the walls of arteries, leading to them to become narrowed or blocked.

Given the numerous changing recommendations, knowing which product to pick can frequently feel overwhelming.

According to a Expert of Population Health and Nutrition, no one oil holds the magic key to wellness, and she clarifies three widespread myths about cooking oils.

1. Choose Sunflower Oil for Cooking

Rapeseed oil and sunflower oils often receive bad press, with some suggesting they are ultra-processed and can cause inflammatory responses that could harm heart health.

But, there lacks scientific proof to back this up.

In fact, these oils contain a small percentage—5-10%—of less healthy saturated fats and are rich in healthier mono- and polyunsaturated fats. These fats, including omega-3 and omega-6, are vital for brain and heart health.

The expert says that these oils are "definitely good for us."

She clarifies that they can offer a reduction in health risks "if saturated fats like butter are replaced with these oils."

At around two pounds per liter in many grocery stores, it's also a highly budget friendly choice for cooking at home.

Second: Spreadable Fats Can Help Reduce LDL Cholesterol

Margarine has carried a bad reputation for decades, and most people think we should avoid it.

That's because it once contained damaging trans fats that are strongly linked with heart disease, but contemporary margarines "have close to zero amounts trans fats," according to the expert. "Therefore it can in fact be part of a healthy diet and lower the bad cholesterols."

Butter also is not forbidden completely. "For those who enjoy butter, for example on your toast, certainly have it," advises the expert.

You can employ either margarine and dairy butter for cooking, but she suggests sometimes swapping them out for oil as an alternative, which has lower saturated fat.

UK health guidelines advise keeping your saturated fat intake below ten percent of daily calories, and this is simpler to achieve if you're opting for cooking oil to prepare meals instead of butter.

3. Olive Oil Is Not Ideal for Deep Frying

Oils react in varied ways when exposed to heat, making some of them unsuitable for high-heat cooking.

Premium olive oil, as an instance, is packed with beneficial compounds and nutritious substances, but its lower heat tolerance means it is better for salad dressings or finishing dishes rather than deep frying.

The smoke point is the temperature at which the oils in the oil start to break down and release unpleasant substances that can cause the oil taste burnt or off-putting.

As noted by a chef, for shallow frying he uses a standard olive oil.

But for deep frying something like french fries or battered fish, rapeseed or sunflower oil is optimal as they tolerate higher temperatures without breaking down.

Some studies have additionally indicated that oils raised to above their smoke point release harmful chemical by-products.

But the professor notes that type of culinary practice in the household is not very common and that long-term health studies still demonstrate that vegetable oils "consistently are linked with improved results for chronic diseases."

Which Oils Should I Be Choosing?

If you're looking for a simple cooking approach:

• For daily meal preparation: Rapeseed oil are affordable, healthy, and flexible. You could also use a standard olive-based oil
• When preparing salads or garnishing: High-quality olive oil imparts taste and nutritional value
• For deep frying: Stick with a high smoke point oil such as sunflower oil
• To add diverse tastes: Although they lack the same nutritional advantages as olive oil, you could use coconut or avocado oils for uncooked recipes if you like the taste

In summary, the expert says it is better to look at your overall eating habits rather than obsess over which bottle to purchase.

"She suggests selecting what taste and budget factors you have and trying out with various kinds of oil that will bring you some wellness advantages," she explains.