Skip to content
Home / Is Vegetable Oil Bad For You?

Is Vegetable Oil Bad For You?



Many people think vegetable oils are healthy. The American Heart Association has declared that soybean oil, corn oil, and all of the other vegetable oils are beneficial for the heart for many years. But is vegetable oil bad for you?

Vegetable oils have become increasingly present in food items (particularly processed food products) in the past 50 years, whereas butter and coconut oil have become less popular.

Beware: Vegetable oils should not be included in a good ketogenic eating plan. The problem is that vegetable oils contain a lot of linoleic acid, as well as other omega-6 fatty acids that can inflame and break down easily. Consuming these oils can be damaging to your metabolism, aggravate inflammation, elevate oxidative stress, disturb weight management, and increase your chances of developing cancer.

This article will provide information on the scientific background of vegetable oils, discuss the most unsuitable vegetable oils and suggest alternatives.

Vegetable Oils, Saturated Fat, and Heart Disease

In the past 50 years, the American Heart Association has kept and promoted the idea that saturated fats are responsible for causing heart disease. The organization recommends substituting butter and coconut oil, which are high in saturated fats, with vegetable oils rich in omega-6 fatty acids which promote heart health.

Nevertheless, emerging research indicates the contrary is valid. In the past ten years, numerous extensive and impartial reviews of the data have suggested that consuming saturated fat does not lead to any cardiovascular issues, such as heart attacks.

The data suggests the opposite. There is a negative connection between the amount of saturated fat eaten and the number of strokes that occur, and it may help to prevent liver disease caused by alcohol.

Foods that contain higher amounts of saturated fat, such as eggs, palm oil, and coconut oil, are full of valuable nutrients like choline, carotenoids, and medium-chain triglycerides (MCTs).

When fat is consumed, it gets stored in its triglyceride form. When the time arrives to transform the fat into energy during a ketogenic diet, the triglyceride is eliminated into fatty acids.

Fatty acids are the building blocks of fat. There exist several varieties, all of which have distinct benefits for your well-being.

The four major types of fatty acids are:

  1. Saturated fatty acid (SFA)
  2. Monounsaturated fatty acid (MUFA)
  3. Polyunsaturated fatty acid (PUFA)
  4. Trans fatty acid (trans fat)

You already learned about saturated fatty acid. SFA is very satisfying, prevents rancidity, and can withstand high temperatures, making it perfect for preparing food. It is not commonly believed, but SFAs are actually good for you and do not increase cholesterol levels.

Next come MUFAs. Eating a lot of foods with monounsaturated fatty acids (MUFA) is linked to a number of health advantages, including lower levels of blood pressure, blood sugar, and decreased chances of developing cardiovascular issues.

You won’t find many folks bashing monounsaturated fats. The main form of lipids in olive and avocado oil is prevalent in the Mediterranean Diet, which is renowned for its connection with increased longevity.

Then there are PUFAs. Polyunsaturated fatty acids (PUFAs) can be separated into omega-3 fatty acids, like those located in fish, which are anti-inflammatory, and omega-6 fatty acids, such as those discovered in vegetable oil, that are pro-inflammatory.

In conclusion, there are man-made trans fats, also known as hydrogenated polyunsaturated fatty acids. Synthetic trans fats are far and away the most unfavorable kind of fat. Researchers have demonstrated how detrimental trans fats are and consequently, they have been restricted in most parts of the globe.

Omega-6 PUFAs are not as damaging as trans fats, however they are not something beneficial either.

The Problems With Linoleic Acid

Most vegetable oils contain a type of omega-6 polyunsaturated fatty acid (PUFA) named linoleic acid, which can be particularly bad for your health. Linoleic acid can be potentially harmful in several different ways.

1. Linoleic Acid May Stunt Weight Loss

Throughout history, people have eaten a balance of omega-6 and omega-3 fats, with nearly a one-to-one ratio. Scientists think that this proportion is ideal for the wellbeing of people. In the United States, the ratio of omega-6 to omega-3 fatty acids is mainly due to the prevalence of vegetable oils, and it has now become almost 20:1, which is highly in favor of omega-6s, predominantly linoleic acid.

That skewed ratio is a strong predictor of obesity. In order to shed pounds, steer clear of Linoleic Acid and other Omega-6 Polyunsaturated Fatty Acids. An abundance of linoleic acid is converted to another omega-6 PUFA identified as arachidonic acid, which activates inflammation pathways and lowers metabolism, leading to quick weight increase.

2. Linoleic Acid Causes Inflammation

Another consequence of excess linoleic acid is inflammation. Linoleic acid is converted into pro-inflammatory compounds known as eicosanoids, leading to an immune reaction in cells, thus causing minor inflammation.

A constant, mild level of body-wide inflammation is responsible for the majority of long-term illnesses found in the Western world nowadays.

3. Linoleic Acid Oxidizes When Cooked

The American Heart Association (AHA) recommends the use of high-linoleic oils for cooking purposes to promote cardiovascular health. The issue is that linoleic acid in vegetable oils like corn oil and soybean oil is not very durable. When exposed to high temperatures, it oxidizes.

A combination of soaring temperatures and a precarious fat source produces oxidized lipids. There are two ways oxidized lipids accelerate the progression of heart disease:

  • Inflammation: Once ingested, oxidized lipids interact with free radicals — reactive oxygen species (ROS) — in your bloodstream. This interaction triggers your immune system, creating inflammatory conditions in which atherosclerotic (heart disease) plaques develop.
  • Oxidized LDL: Low-density lipoprotein (LDL) particles transport lipids through your bloodstream for energy. So, if you eat oxidized lipids, LDL particles pick them up, causing the LDL itself to oxidize. Oxidized LDLs then penetrate the arterial wall, creating inflammation that results in clogged arteries that increase your risk of heart disease.

The conclusion is that vegetable oils high in linoleic acid should not be used for cooking.

3 Vegetable Oils to Avoid

When it’s time to cut out vegetable oils from your meals, begin by getting rid of regular items from your cabinets.

1. Soybean Oil

The most popular vegetable oil in America is soybean oil, mainly due to its affordability. Soybean oil can be found as an ingredient in salads, spreads, fried snacks, pastries, and other types of food. Most soybean oil comes from GMO soybeans.

Soybean is high in linoleic acid, making up around 55% of its composition, resulting in weight gain, inflammation, and various other health complications. This liquid has been heavily filtered, making it lacking in any beneficial nutrients. You’re better off avoiding it.

2. Peanut Oil

Peanut oil is popular for frying foods. It adds a crisp texture and a nutty taste when deep-fried. Eating peanut oil may raise the chances of one getting conditions such as heart ailments, diabetes, liver issues, and even cancer due to the presence of linoleic acid in it.

Peanut oil has a good quantity of vitamin E, of which firms use to promote it as an advantageous food. But the cons outweigh the pros here. It is preferable to obtain your vitamin E from sources such as olive oil and avocados.

3. Cottonseed Oil

Cotton may not appear to be a vegetable, however, oil taken from the curd of the cotton bush is still viewed as a vegetable oil.

Crisco originally used cottonseed oil and many restaurants still prefer it as a cooking oil as it is mild in taste and can be used at high temperatures.

But since cottonseed oil is high in linoleic acid, restaurants that use it are giving customers a heavy dose of damaged lipids, which are not beneficial for the cardiovascular system.

Vegetable Oils are Bad: an unnatural process from the start.

Before discussing the way vegetable oils are produced, let’s take a moment to consider one of my personal favorite traditional fats: Butter.

The production of butter involves the separating of cream from milk. This is a natural phenomenon that simply requires some perseverance. Once the cream and milk have split, simply take out the cream and whip it up until it becomes butter. It’s not complex at all, I’ve had lots of experience making butter. The whole process will only take about five minutes.

Now, let’s look at how canola oil is produced. Here’s an overly simplified version of the process:

Begin by attempting to locate some “canola seeds.” However, realize that they do not actually exist. A version of rapeseed that has been genetically modified and treated with pesticides is used to create canola oil.

Boil the rapeseeds at extremely high temperatures to the point that they become spoilt before you purchase them.

Treat with a petroleum-based solvent to obtain the oils.

Boil it again then put in some acid to get rid of any waxy substances that were created while running it through the initial process.

The fifth step is to apply additional chemicals to the oil to enhance its colour.

Step 6: Neutralize the odor of the oil to disguise the unpleasant smell from the chemical processing.

If you want to turn your vegetable oils into something firmer, simply hydrogenate it to make it solid. Now you have margarine and all its trans-fatty wonder.

People often say that if you knew how certain dishes were cooked, you would not want to eat them, and evidently vegetable oil is one of those items. It is clear that the food that is often consumed derives from a very unnatural process, and if more people were aware of how this food is made, it wouldn’t be so firmly entrenched in the American diet.

So what is safe to use?

In today’s world, where there is an abundance of artificial and hazardous fats, it can be quite daunting to search for substitute healthier solutions. If you try to stay knowledgeable about the most recent research results, you could end up being even more perplexed. It’s not necessary to be an expert on nutrition to figure out the healthiest types of fat. Look to your ancestors. Examine what sustenance was like prior to the advent of industrial and synthetic processes that have created a mall of fake items.

Generally speaking, one of the best strategies for discovering unprocessed foods is to look at what people were consuming before packaged foods were available.

Here are some tips to guide you when using fats and oils.

Good fats for cooking

Be mindful of the source of your food and how you store it, as it can have a substantial impact. Traditional oils should be cold-pressed. Organic ingredients should be prioritized, particularly when it comes to animal fats since these are known to accumulate toxins and pesticides. Give it your all and don’t get confused or overwhelmed by the number of options available.

Here are some great alternatives that you can use in your cooking, and you won’t find yourself missing vegetable oil at all:

The “meat” from a coconut is the source of Coconut oil. The oil is derived from coconuts through a process known as “pressing” to extract the oil. An easy procedure, in contrast to the extremely artificial process used to produce vegetable oil.

Look for coconut oil that has been “expeller pressed” when it comes to using coconut oil. This entails squeezing the coconut to extract the oil. There is no overpowering coconut taste when you use oil that has been extracted by pressing.

In order to cook, just measure out the same amount of this oil as you would have used with regular vegetable oil. This makes the transition quick and easy!

Avocado oil is created by extracting juice from avocado flesh. Vegetable oil is not nearly as natural a process as this. Avocado oil contains a sizable amount of oleic acid, which is a kind of monounsaturated fat which is beneficial to one’s health as long as it is taken in moderation. Avocado oil is an effective way of preventing free radicals.

Avocado oil is ideal for dishes that do not require cooking, as its flavor is quite good on its own. Avocado oil is an excellent substitute for vegetable oil due to its numerous advantageous qualities.

Extra-Virgin Olive Oil: A classic option. Substituting extra-virgin olive oil for vegetable oil is a beneficial choice. It is also affordable and easy-to-find. It is made by pressing whole olives. This type of oil is particularly beneficial for health, as the majority of its fat content is made up of monounsaturated fat.

Certainly, olive oil is one of the most adaptive ingredients available. Many recipes can take advantage of its awesomeness without heating, such as including it in salad dressings, mayonnaise,humus, and so on. It is also possible to prepare food at low temperatures using this item in many different dishes.

In addition to coconuts, avocados, and olive oil, there are more options when it comes to substitutions for vegetable oil. Here are even more oils and fats you can use that will help you kick vegetable oil to the curb for good:

  • Lard
  • Tallow
  • Butter
  • Palm Oil (Although, please find from a sustainable source as so much palm oil today is being harvested in horrific ways. When in doubt just stick with coconut oil.)
  • Other fats (not necessarily for cooking, but essential to good health) include meats, eggs, dairy, and fish (nuts are also good in moderation as they have a high level of polyunsaturated fats).


Leave a Reply

Your email address will not be published. Required fields are marked *