2024 Author: Jasmine Walkman | [email protected]. Last modified: 2023-12-16 08:29
The breakdown and accumulation of fat is part of our metabolism. Our desire for the breakdown of adipose tissue to become more active at the expense of the body's reserves is sometimes quite high. But no matter how much we want to influence one process at the expense of another, we must not forget that we have a unique body, which is precisely because of the balance of processes in it.
In fact, even during the processing of vegetable oils in industry, most of the sterols and phospholipids are removed for both technological and taste reasons. One can synthesize adequate amounts of cholesterol and phospholipids. Dietary cholesterol plays an important role in the composition of lipoproteins and metabolism.
Phospholipids of plant origin have a different fatty acid composition from animals, but are taken into our bodies in the same way. Studies show that only 2% of daily lipid intake is due to phospholipids, but this small amount plays an important role in triglyceride metabolism. Small amounts of phospholipids are important for the emulsification of triglycerides in dispersed droplets in the stomach.
The role of phospholipids is to emulsify triglycerides and to facilitate the dissolution of other lipolytic products.
Absorbed lipids are transported to the small intestine and other tissues. Fatty acids with a hydrocarbon chain length of less than 14 carbon atoms bind to albumin and are transported directly to the liver through the portal vein.
Unlike cholesterol, which we create ourselves, food cholesterol is partially esterified. Cholesterol uptake is lower than that of fatty acids. Only part of the cholesterol accumulates - about 300-500 milligrams.
The World Health Organization recommends not taking more than 300 milligrams of cholesterol a day. Its absorption is facilitated by the presence of triglycerides in the diet, as it improves cholesterol uptake by expanding bile micelles.
In high-cholesterol diets with limited cholesterol absorption, a high concentration of waste is obtained. cholesterol and its products due to bacterial decomposition in the colon and rectum, which may have a carcinogenic effect. These diets increase the total level of cholesterol, as well as its content in the blood.
Cholesterol binds to low-density serum proteins, which contain 45-50% cholesterol and ensure its transport from the liver to the tissues.
Diets low in cholesterol and saturated fats and with limited amounts of animal protein lead to a significant reduction in serum cholesterol. But this is not necessary for normal cholesterol levels, but only for problems related to it.
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