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The Chilling True Face of 'Linoleic Acid,' the Silent Killer Causing Obesity and Brain Cell Destruction
Created by
- Lumen
Category
- Linoleic acid
- Omega 6
Linoleic acid (LA) is a representative omega-6 polyunsaturated fatty acid (PUFA) with 18 carbon atoms and two double bonds. It has long been known as an "essential fatty acid" that our bodies cannot synthesize on their own and must be obtained through food.
1. Natural Consumption and the Problem of Modern Overconsumption
Linoleic acid naturally exists in very small amounts in natural plant and animal foods. Before the agricultural revolution, humanity consumed only about 12% of their daily caloric intake from linoleic acid. However, as inexpensive industrial refined vegetable seed oils such as soybean oil, corn oil, sunflower oil, safflower oil, cottonseed oil, and canola oil have come to dominate the food industry, modern humans are consuming more than 7% of their daily caloric intake from linoleic acid, which is 36 times more than in the past.
Although our fat cells are originally designed to store saturated fat rather than polyunsaturated fat , the proportion of linoleic acid in the body fat of Americans skyrocketed from about 9% in 1959 to over 21% in 2008 due to continuous consumption of vegetable oils . High levels of linoleic acid are also accumulated in the fat of factory-farmed pigs and chickens raised on excessive diets of grains and legumes .
2. Fatal health problems caused by excess linoleic acid
Modern medicine and research point out that excessive linoleic acid accumulated in our bodies is the root cause of various chronic diseases .
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Oxidative stress and the formation of highly toxic metabolites (OXLAMs): Linoleic acid molecules are highly vulnerable to oxidative stress and heat, making them easily damaged . Damaged linoleic acid breaks down in the body into toxic byproducts called OXLAMs (linoleic acid oxidase metabolites), which act as direct causes of heart disease, fatty liver disease, and obesity.
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Causes chronic inflammation and interferes with omega-3 conversion: Excessive intake of linoleic acid shifts the body's entire system from a 'healing' state to an 'inflammatory' state . Furthermore, it exacerbates systemic inflammation by interfering with the synthesis of anti-inflammatory omega-3 fatty acids (EPA and DHA), which are essential for brain and eye health. In fact, there are studies showing that reducing linoleic acid in the diet significantly improves inflammatory symptoms such as migraines .
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Destruction of Brain Health and Risk of Alzheimer's Disease: Instead of safely storing linoleic acid in other cell membranes or converting it into arachidonic acid, the brain burns most of it for energy. When linoleic acid is burned, a massive amount of reactive oxygen species is generated, causing severe oxidative stress within the brain. According to one study, blood linoleic acid levels in Alzheimer's patients were 56% higher than in people without cognitive impairment , and it was confirmed that the higher these levels, the lower the energy production capacity of white blood cells .
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Deterioration in egg quality and reduced fertility: In a study of women undergoing in vitro fertilization (IVF), it was found that women with higher levels of omega-6 (especially linoleic acid, a major component of vegetable oils) in their serum and follicular fluid showed significantly lower egg yield and quality.
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Promotion of obesity and weight gain: Animal studies have revealed that dietary linoleic acid increases levels of specific endocannabinoids (2-AG and anandamide) in the body, stimulating appetite and directly inducing weight gain and obesity.
3. The Errors of the 'Essential Fatty Acids' Myth and Management Strategies
In the past, linoleic acid was considered an essential fatty acid, and there was a recommendation to consume 2 to 10 percent of daily calories, but modern science criticizes this as illogical.
If you consume sufficient amounts of 'arachidonic acid (AA)' through animal products (meat, egg yolks, etc.), linoleic acid becomes a non-essential fatty acid that your body does not need to consume at all . Furthermore, since modern humans have already accumulated a sufficient amount of linoleic acid in their body fat, the probability of developing a deficiency is close to zero. Even if you were to completely cut linoleic acid from your diet starting today, it would take approximately 680 days (almost two years) just to consume half of the linoleic acid already accumulated in your body .
As a result:
To escape the harmful effects of linoleic acid and protect the brain and body from inflammation, the surest remedy is to thoroughly eliminate refined vegetable oils such as corn oil, canola oil, grapeseed oil, and soybean oil from your diet in daily life, and to cook with stable, traditional fats such as butter, ghee, lard, beef tallow, and extra virgin olive oil.
To escape the harmful effects of linoleic acid and protect the brain and body from inflammation, the surest remedy is to thoroughly eliminate refined vegetable oils such as corn oil, canola oil, grapeseed oil, and soybean oil from your diet in daily life, and to cook with stable, traditional fats such as butter, ghee, lard, beef tallow, and extra virgin olive oil.