This is a collaborative post: Cooking oils are mostly produced from oilseeds as well as from legumes, nuts and some fruits. Vegetable oils are extracted from the plants and are then processed and refined to produce high-quality oils suitable for use as an ingredient for frying, salad dressings and the production of margarine and spreads.
There has been a rapid growth in the seed oil market over the past 30 years. This was initially driven due to health concerns. In 2008, the four main types of vegetable oil that dominated the international market were soybean oil, palm oil, rapeseed oil and oil made from organic sunflower seeds. In the UK, the only oilseed crops mostly harvested are hempseed, rapeseed and linseed/flaxseed. There are substantial imports of groundnuts, sunflowers, soybeans, and palm kernels which are then processed in the UK, resulting in the production of various oils in the UK. In 2020, the UK purchased around 2.8 billion pounds worth of oils and fats. An increase of approximately 579 million pounds in comparison to the previous year.
If you have a medical condition and are unsure which cooking oil to use, it is better to talk to your doctor or an expert at Click Pharmacy.
A healthy outside always starts from the inside. The nutrients come from the diet you choose to eat. Good choice in food sets the standards of your health, which in turn are responsible for the quality of life you live. For example, healthy cooking oils can have numerous health benefits preventing heart stroke, cancer and improve arthritis and menopause symptoms.
A wide range of cooking oil is available in the market, but it is better to keep a check on health benefits and risk factors before you select any. Cooking oils get their name from the plants, seeds, and nuts from which these are extracted. The healthy and unhealthy cooking oils are classified in terms of their high-fat content, including:
- Saturated fat
- Monounsaturated fatty acids
- Polyunsaturated fatty acids
What is a Healthy Cooking Oil?
Oils are the key source of vitamin E and essential fatty acids. Healthy cooking oil undergoes less processing and is not refined. Due to minimum processing, the unrefined oils have natural flavour, colour and contain sediments or particles. The unrefined oils have a low smoke point and are more nutritious.
The smoke point is the temperature at which the oil starts to smoke and tastes burnt. It starts to break down and is no more stable. At high temperatures, the oil reaches its smoke point and tends to break down. It begins to oxidize and release compounds that are harmful to health. A healthy oil has a low smoking point and does not oxidize.
Healthy Cooking Oils
- Olive Oil
Health experts and nutritionists believe that extra virgin olive oil is the healthiest of all the cooking oils. An extra virgin olive oil is best because:
- Contains a large number of monounsaturated fats.
- Contains some polyunsaturated fatty acids.
- Has a lower smoke point /best for low-medium heat cooking.
- Best for heart health/helps prevent stroke.
- Maintains a healthy cholesterol level.
- Relieves constipation.
- Helps prevent cancer, ulcerative colitis, and pancreatitis.
- Strengthens bones.
- Avocado Oil
Avocado is a fruit rich in healthy fat. Avocado oil is unrefined cooking oil like extra virgin olive oil and contains antioxidants. The smoke point of avocado oil is high and is ideal for high heat cooking, especially for stir-frying. In addition, avocado oil contains a high amount of oleic acid (a monounsaturated omega-9 fatty acid). The avocado oil is healthy because:
- It is rich in Oleic acid, a healthy fat.
- It contains an antioxidant, Lutein, good for the eyes.
- Helpful in the absorption of essential nutrients
- Reduces cholesterol and is suitable for heart health
- Helps prevent arthritis and gum disease
- Canola Oil
Canola oil is extracted from the flowering plant rapeseed. Like avocado oil, it also has a high smoke point and is suitable for high heat cooking. It is the healthiest oil due to its high content of omega-3 and omega -6 fatty acids. Canola oil is considered best because:
- It is rich in omega-3 and omega-6 acids
- It has just 7% fat which reduces cholesterol level
- It contains vitamin E and k, best for skin problems like acne, blemishes, spots, and fine lines
- It reduces inflammation and joint stiffness
- Safflower Oil
Safflower oil is derived from the seeds of the safflower plant. The smoke point of safflower oil is high and is low in saturated fat. It has a neutral flavour and is best for dips, sauces, marinades and barbecues. It might be the best option because:
- It is rich in unsaturated fatty acids, high in good fats.
- It improves blood sugar levels.
- It boosts heart health and lowers cholesterol.
- It fights inflammation, soothes dry skin, and contains vitamin E.
- Sesame Oil
Sesame oil is derived from raw and pressed sesame seeds. It is flavourful and unrefined cooking oil. It has a low smoke point and contains two powerful antioxidants, sesamol and sesaminol. Sesame oil is a good choice because it is:
- High in antioxidants
- Rich in monounsaturated fats and improves heart health
- Helps regulate blood sugar levels
- Has anti-inflammatory properties
- Heal wounds and burns
Unhealthy Cooking Oils
- Grapeseed Oil
This oil is extracted from the grape seeds used in winemaking. Grapeseed oil is oxidized when processed industrially. It is rich in omega-6 polyunsaturated fats and vitamin E. However, it is flavourless and has a high smoke point. Grapeseed oil is considered unhealthy because:
- Contains 70% omega-6 fatty acid, causes inflammation
- May lead to heart problems and cancer
- May cause hormonal imbalance
- May cause thyroid damage
- Soybean Oil
Soybean oils cause health problems. It is extracted from soybeans. It is one of the most widely used vegetable oil. Soybean oil contains omega-6 fatty acids. It is bad for health because:
- It is rich in omega-6 fatty acid (54%) linoleic, a bad fat.
- It causes inflammation, hardening of arteries.
- It may lead to heart and liver disease.
- Causes increased risk of obesity.
- Corn Oil
This oil is extracted from corn and is a highly processed and refined oil. It is made by using genetically modified (GMO) corn. As a result, the smoke point of corn oil is high.
- It is high in omega-6 fatty acid, causes inflammation.
- It produces harmful acrylamide when heated.
- Omega-6 fatty acid accelerates the growth of cancer cells.
- It may lead to fatty liver, induces obesity.
- Margarine
Margarine is derived from the vegetable oils from the plants like sunflower, soybean, and cottonseed. These crops are nowadays mostly genetically modified (GMO). Margarine should be avoided as it contains Trans-fat.
- It contains large amounts of highly damaging trans-fat
- It increases blood cholesterol level
- It tends to make blood platelets stickier
- There is an increased risk of heart disease
- Cotton Seed Oil
Cottonseed oil is the most common vegetable oil derived from the seeds of the cotton plant. It is economical, but its saturated fat content makes it a bad option. It is commercially used because of its extended shelf life. It contains gossypol that is associated with:
- Infertility and reduced sperm count
- Pregnancy problems
- Liver damage
- Respiratory distress
- anorexia