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phytosterol
One of the 4 classes of phytoestrogens. Derived from vegetable oil & certain fruits & vegetables. They are absorbed in proportion to absorbed cholesterol, but to a much lesser extent (0.1%). Phytosterols inhibit intestinal cholesterol absorption. This, in turn, stimulates hepatic cholesterol biosynthesis. The net effect is a lowering of total cholesterol & LDL cholesterol. 2g/day can lower LDL cholesterol by 5%. [3]
Phytosterols include:
- beta-sitosterol
- campesterol
- stigmasterol
Phytosterols may be found in black-eyed peas, tea, lettuce
Interactions
drug adverse effects of estrogens
Specific
beta-sitosterol
campesterol
stigmastanol
stigmasterol
General
phytoestrogen
sterol
References
- Schabath MB et al.
Dietary phytoestrogens and risk of lung cancer
JAMA 2005 Sep 28;294(12):1493-504
PMID: 16189362
- Miettinen TA, Railo M, Lepantalo M, Gylling H.
Plant sterols in serum and in atherosclerotic plaques of
patients undergoing carotid endarterectomy.
J Am Coll Cardiol. 2005 Jun 7;45(11):1794-801.
PMID: 15936608
- Prescriber's Letter 15(9): 2008
Supplements for Lowering Cholesterol: an Update
Detail-Document#: 240909
(subscription needed) http://www.prescribersletter.com
Component-of
ascorbate/nicotinamide/phytosterol
cholecalciferol/cobalamin/fatty acid omega 3/folic acid/phytosterol/pyridoxine
cobalamin/docosahexaenoate/eicosapentaenoate/folic acid/phytosterol/policosanol/pyridoxine
cobalamin/docosahexaenoate/eicosapentaenoate/folic acid/phytosterol/pyridoxine
cobalamin/fatty acid omega 3/folic acid/phytosterol/pyridoxine
docosahexaenoate/eicosapentaenoate/phytosterol