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For plant stanol esters: (i) Foods containing at least 1.7 g per serving of plant stanol esters, eaten twice a day with meals for a total daily intake of at least 3.4 g, as part of a diet low in saturated fat and cholesterol, may reduce the risk of heart disease. A serving of [name of the food] supplies ___grams of plant stanol esters. [17]
Sterolins are likely involved both in the selective transport of dietary cholesterol in and out of enterocytes and in selective sterol excretion by the liver into bile, as evidenced by the consequences when it is deficient or over expressed. The exact mechanism(s) whereby ABCG5/ABCG8 exert their effects on sterol metabolism has not yet been ...
Sterol is an organic compound [1] with formula C 17 H 28 O, whose molecule is derived from that of gonane by replacement of a hydrogen atom on C3 position by a hydroxyl group. It is therefore an alcohol of gonane.
β-Sitosterol is widely distributed in the plant kingdom.It is found in vegetable oil, nuts, avocados, and derived prepared foods such as salad dressings. [2] Olavius algarvensis, a species of marine annelid, predominantly incorporate β-sitosterol into their cell membranes instead of cholesterol, though cholesterol is also present in said membranes.
Plant stanols are present in small amounts in human diet. Their main sources are whole-grain foods, mostly wheat and rye.The daily intake of stanols in the average western diet is about 60 mg/d, whereas the intake of plant sterols is about 150–300 mg/d and that of cholesterol is 500–800 mg/d.
Plant sterols were first shown in the 1950s to lower LDLs and cholesterol. [7] Since then, numerous studies have reported the lipid-lowering effects of dietary phytosterols, including campesterol. [8] In basic research, campesterol competes with cholesterol, thus reducing the absorption of cholesterol in the human intestine. [9]
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Brassicasterol (24-methyl cholest-5,22-dien-3β-ol) is a 28-carbon sterol synthesised by several unicellular algae (phytoplankton) and some terrestrial plants, like rape.This compound has frequently been used as a biomarker for the presence of (marine) algal matter in the environment, and is one of the ingredients in stigmasterol-rich plant sterols (Number E499 in the European numbering system).
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