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PhytostérolsLa first study highlighted the effectiveness of plant sterols on blood cholesterol lowering in 1953! Since then, a good sixty scientific work has demonstrated the value of phytosterols on lowering total cholesterol and especially LDL cholesterol, “bad”, with the excess tends to clog arteries. To be considered, cholesterol must be integrated into “micelles” of sorts of carriers in the digestive cells. As plant sterols resemble cholesterol, if present in sufficient quantity in the digestive tract, they take up a portion of cholesterol in carriers. Result: there is less assimilated cholesterol (the cholesterol that did not take the carrier is evacuated in the stool).
However, the liver needs cholesterol to make bile salts (used for digestion). Without the contributions of food, it is obliged to capture LDL cholesterol circulating in the blood, which lowers gradually the concentration. Daily consumption of plant sterols between 1 and 3 g results in a decrease in LDL-cholesterol by 5 to 15% without reducing HDL-cholesterol (good cholesterol protector of the arteries).