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Linoleic acid is a polyunsaturated fatty acid that can be used as a source of energy. It also functions as a structural component of cell membranes. Linoleic acid is an essential nutrient that must be consumed, as it cannot be synthesized in the body. (source)
Low serum linoleic acid levels can be influenced by physiological factors affecting the body's ability to metabolize and utilize this essential omega-6 fatty acid. From a nutritional perspective, inadequate intake of linoleic acid-rich foods, such as certain vegetable oils and nuts, can contribute to lower serum levels. (source, source)
Prioritize linoleic acid-rich foods: Consumption of linoleic acid has been shown to increase linoleic acid levels. (source, source) Recommendation: Eat at least one serving of linoleic acid-rich foods daily.
One serving examples: Sunflower Seeds (1 oz), Walnuts (1 oz)
Avoid alcohol: Alcohol has been shown to reduce blood linoleic acid levels. (source, source) Increased alcohol consumption can lead to increased inflammation and oxidative stress in the liver, inhibiting its ability to metabolize fatty acids, including linoleic acid, thus reducing circulating levels. (source) Recommendation: Monitor alcohol intake. Try to limit consumption to one or two drinks daily, with the goal of less than three per week.
Supplement with linoleic acid: Consumption of linoleic acid has been shown to increase linoleic acid levels. (source) Recommendation: Supplement with 4 g of safflower oil.
High serum linoleic acid levels can result from physiological factors related to metabolism and organ function, particularly the liver's role in processing fats. Nutritionally, excessive consumption of foods rich in linoleic acid, such as certain vegetable oils and processed foods, can lead to elevated levels in the bloodstream. (source, source)
Limit Foods High in omega-6 fatty acids: Ingestion of omega-6 fatty acids has been shown to increase omega-6 fatty acid levels in the blood. (source) Linoleic acid is an omega-6 fatty acid, so reducing the consumption of linoleic acid decreases levels in the body. (source) Recommendation: Monitor and limit excess consumption of foods high in omega-6 fatty acids, like mayonnaise, safflower oil, and some salad dressings.
Avoid smoking: Smoking has been shown to influence the metabolism of linoleic acid. (source) Cigarettes contain a high content of free radicals that increase oxidative stress, inflammation, and cell damage, which inhibits lipid metabolism, particularly in long-chain polyunsaturated fatty acids, like linoleic acid. Avoiding smoking will aid in regulating linoleic acid levels. (source) Recommendation: If a smoker, take the steps to quit. If not, avoid areas where secondhand smoke is present.
Monitor omega-6 fatty acids: Ingestion of omega-6 fatty acids increases omega-6 fatty acid levels in the blood. (source) Linoleic acid is an omega-6 fatty acid, so reducing the consumption of linoleic acid decreases levels in the body. (source) Recommendation: Monitor excess omega-6 fatty acid intake and supplementation.
