Key Takeaways
- Cooking oils are fats made from plants, animals, or synthetic compounds used to fry, bake, and prepare foods for consumption.
- Reheated cooking oil can become carcinogenic, more acidic, and increase LDL cholesterol.
- Switch to homemade food, cook small quantities, and carry home-cooked meals when travelling.
Can cooking oil and cancer be related? Despite the long history of cooking food in fats and oils, you might be concerned about their health effects. Let us find out if this concern is justified or fueled by a lack of understanding of the science of cooking with vegetable oils.
What you need to know:
- What are cooking oils, and how are they made?
- Harmful effects of cooking oil after re-heating
- Ways to reduce reheated oil usage
- Does cooking oil cause cancer?
What are cooking oils, and how are they made?
Cooking oils are plant or animal liquid fats used in frying, baking, and preparing foods for consumption. They are extracted from various plant sources, including seeds, fruits, nuts, and grains. This extraction process generally starts with crushing the plant material and then boiling it to release the oil. The boiled liquid is then strained through a few different filters to remove impurities before being cooled and filtered again. Sometimes, chemicals are added to help extract more oil from the plant materials or improve their quality. After all this processing, what remains is an edible cooking oil that can be used to prepare food in your kitchen.
Harmful effects of cooking oil after re-heating
Reheating or reusing cooking oil can be detrimental to your health. It can be the reason behind your acidity or rising cholesterol levels.
It becomes carcinogenic
Anything that is carcinogenic has the possibility of causing cancer. Research shows how aldehydes – toxic elements – are produced when you reheat oil. Cooking food by reusing cooking oil can also increase free radicals or unstable molecules that can damage cells in the body. This can cause inflammation – the root cause of most diseases, including obesity, heart disease and diabetes. High inflammation in the body can also reduce immunity and make you prone to infections.
More acidic
If that burning sensation in your stomach and throat has become more frequent than ever, reheated cooking oil may be the problem. Avoid eating roadside junk and deep-fried food if you experience more acidity than usual.
Increase in LDL cholesterol
Food cooked in black smoked oil, which is used and reheated throughout the day, can increase the level of LDL or bad cholesterol in the body. High levels of LDL cholesterol can increase risks of heart disease, stroke and chest pain. Avoid reusing cooking oil to avoid cholesterol-related problems.
Ways to reduce reheated oil usage
As reheated oil can harm your health, it is wise to reduce its usage. Let us explore the ways to reduce it:
Switch to home-made food
Home-cooked food is fresh and healthy. Cooking at home empowers you to decide what ingredients go into your food. It can provide the perfect balanced diet for good health and weight management, from cooking oil to carbohydrates, protein, fats and fiber. However, you should not use cooking oil that has already been used.
Cook food in small quantities
This is an effective way to reduce excess cooking oil. Calculate the amount of food you need for a particular meal to avoid wasting food. Cook fresh food as frequently as possible. Cooking food in small quantities can also help you practise portion control, a key measure for weight management.
Carry home-cooked food when travelling
There are times when you simply cannot avoid eating out. But you can work on reducing your time to eat out. Meal prepping can help you in this case. Carry your food with you when you know you have to travel. This will help you maintain your weight and avoid eating food likely cooked in reheated oil. You can also opt for fast food with less oil use, like salads, dosa and idli.
Does cooking oil cause cancer?
There is ongoing research into the potential link between cooking oils and cancer, but definitive conclusions are still being sought. However, some studies suggest that cooking oil fumes and reheated cooking oils may be carcinogenic. Exposure to cooking oil fumes may increase the risk of lung cancer, and reheated cooking oils can produce oxidized compounds that may be carcinogenic. Consuming repeatedly heated cooking oils may be associated with a number of cancers, including lung, colorectal, breast, and prostate cancer.
Thus, cooking oil itself does not inherently cause cancer. However, you must exercise caution nonetheless and also keep the abovementioned points in mind when using cooking oil to support your health and well-being.
Stay tuned to the Activ Living Community. Keep up to date with the latest health tips and trends through expert videos, podcasts, articles, and much more on nutrition, fitness, mindfulness, and lifestyle conditions like Asthma, Blood Pressure, Cholesterol, and Diabetes. Activ Living ke saath sahi sehat ki shuruat ABHI karo.
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- Nutrition Vs. Cancer: 10 Foods That Could Make A Difference
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