Can you get sick from eating expired vegetable oil?

In this short article, we will provide an answer to the question “Can you get sick from eating expired vegetable oil?” and the information on the health hazards of rancid oil.

Can you get sick from eating expired vegetable oil?

NO, Despite the terrible taste, consuming rancid or expired edible oil may not cause you to become ill immediately. As a result, long-term cell damage and the development of chronic diseases may occur as a result of the damaged oil.

What Happens If You Consume rancid Oil?

Oils and fats can go rancid or degrade over time due to a variety of variables that are all interconnected. NDSU’s North Dakota State University defines rancidity as “natural deterioration induced by changes in the chemical structure of the components.”

Rancidity is accelerated significantly by prolonged exposure to high temperatures, oxygen, and light. Oils have a greater tendency to go rancid more quickly than solid fats, according to research.

Vegetable oils can lose their nutritional value in a short time, according to the University of Nebraska-Lincoln. The quality of vegetable oils, for example, begins to deteriorate after one to three months of room temperature storage.

When it comes to rancid oils, such as flaxseed oil, what happens if you consume them? Omega-3, linoleic, and oleic fatty acids are found in this versatile oil, which has historically been used as a fiber and food source. According to the Oklahoma Cooperative Extension Service, this oil’s high concentration of polyunsaturated fatty acids renders it particularly vulnerable to quality degradation and oxidative damage.

Its cyclic peptides give fresh flaxseed oil its distinctive nutty flavor. The same oil becomes bitter after being stored at room temperature for an extended time. Although the cyclic peptides alter the oil’s flavor, they may also aid in the oil’s development of immunosuppressive qualities.

Is it harmful to consume rancid oils?

“Yes,” said the study’s researchers, stressing that harmful free radicals formed by rancid oil can contribute to cell damage. Alzheimer’s disease, diabetes, and other chronic diseases may be caused by cells that have been weakened. Carcinogens and artery-damaging free radicals have also been found to be caused by free radicals.

Rancid oils, in addition to free radicals, can cause digestive tract irritation. Rancid food can also deplete your body with vitamins B and E, which is another side consequence of ingesting these toxins.

Perhaps you’ve considered using a deep fryer, but you’re concerned that heating the cooking oil can alter its composition, posing a health risk. This is confirmed by Hygiene Food Safety, as oils undergo chemical changes due to exposure to heat, light, and incorrect storage.

In the end, the oils decompose into very poisonous and carcinogenic chemical compounds. A rotten odor and flavor, and a darker hue, are likely to develop during this process. Over time, they may appear to thicken. Depending on the type of oil used, the rate of chemical breakdown can vary greatly.

Run the oil through a filter every day to eliminate particles that aid in the degradation of the oil, thereby extending its usable life. It’s also a good idea to keep track of when you change your oil. With these preventative measures, you may reduce your health risks and also save money on fryer oil replacements.

How long can vegetable oil be kept in the pantry?

No matter the type, unopened vegetable oil can be kept for up to two years or even longer in a cool, dry, and dark part of the pantry out of the way of heat or sunshine.

When stored in a cold, dry, and dark area of the pantry away from direct sunlight and heat, unsealed vegetable oil can last for up to a year.

How should vegetable oil be stored?

Keep your vegetable oil out of direct sunlight and high temperatures. Sunlight and heat can speed up the deterioration of the oil, which can lead to rancidity and staleness.

Due to oxidation reactions, vegetable oil loses its distinctive flavor and aroma when exposed to the elements, which can eventually lead to rancidity. As a result, to maintain the oil’s quality for an extended time, we recommend that you always close the oil bottle’s lid/cap after pouring the oil you require.

Unopened oil can be safely stored in a cool, dry, and dark place out of the way of heat and sunshine. As a result, you can keep oil in your kitchen cupboards, pantry, or cellar. Even after it has been opened, vegetable oil can be kept in the pantry for a long time.


In this short article, we provided an answer to the question “Can you get sick from eating expired vegetable oil?” and the information on the health hazards of rancid oil.


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