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Showing posts from May, 2026

Is Lard Missing Something Important?

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Today we will look at how the composition of fats in a low-fat diet affects metabolism in mice, for example how it affects fatty liver development. The low-fat diet is an important factor here; the researchers did not overload the mice’s bodies, so in my opinion we are getting fairly relevant results. So what does the study tell us ? We’ll take it slowly. There are six diets here: lard (L1, L2), soybean oil (S1, S2), and a mixture of lard and soybean oil (LS1, LS2), each with either 10% or 15% fat in the diet. For example, this is the difference in blood free fatty acid levels between diets containing 10% and 15% lard. Isn’t that interesting? Such an ordinary low-fat diet. And if it contains 10% fat in the form of lard, it still works reasonably well. But if we increase the lard content by 50%, to 15%, the level of free fatty acids in the blood rises by about 75%. Clearly, something is not right here. What happens if instead of pure lard we provide a mixture of lard and soybean oil in ...

Is Atherosclerotic Vascular Damage Related to Liver Damage?

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I would like to loosely follow up on the previous post about conjugated linoleic acid (CLA) as a potential treatment for atherosclerosis. We saw that a 1% CLA mixture in the diet was able to almost completely heal blood vessels in mice within eight weeks; the previously formed atherosclerotic plaque in the aorta almost disappeared. This was not a slowing of plaque deposition processes, but its removal! What could the mechanism be? Could this work in humans as well? In one older post , I showed how the number of unsaturated bonds in polyunsaturated fatty acids determines the degradation rate of apoB100 molecules, and therefore also the liver production of VLDL/LDL particles. The greater the susceptibility to peroxidation, the faster the degradation of apoB100 and the lower the export of fats and cholesterol from the liver. Take a look at the following findings. Unlike the previous study, linoleic acid and palmitic acid behave the same way here. Human liver cells were used, which could ...

Does linoleic acid protect our blood vessels? Yes—but only CLA, which is found in butter!

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If you think that vegetable (seed) oils protect your blood vessels, that is probably not true . This is suggested by studies examining their effects in older age or looking at lifespan. Vegetable oils may lower cholesterol, but low cholesterol levels are associated with shorter lifespan. But what would you say to the information that simply adding 1% of a special mixture of polyunsaturated oils—specifically processed linoleic acid—to the diet causes vascular plaque to disappear in an animal model within a few weeks! However, the processing of these vegetable oils was not carried out by any industrial food company. No—the processing was performed by bacteria in the cow’s stomach! The resulting product is called CLA, conjugated linoleic acid. There are several types, but the most interesting is rumenic acid, c9,t11-CLA. Another is t10,c12-CLA, but the first one is found in butter at ten to twenty times higher levels than the second. Could it be, then, that full-fat dairy products—especia...