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> >Milo, > > Do the standard A,C, and E antioxidents cross the blood/brain barrier? If > > so, how well? > > > > Peace. > > John > >John, The physiology professor here at the college tells me that fat soluble ones do cross the blood-brain barrier and even the water soluble ones do if the molecule is small, e.g. the glucose molecule passes the blood-brain barrier even tho water soluble because it is a small molecule. I will assume that means that vitamin E which is a good antioxident and fat soluble will pass the blood-brain barrier. Also vitamin C which is water soluble but is a smaller molecule than glucose will pass through the blood-brain barrier. Another excellent antioxident is a product called pycnogenol and a related material which is made from grape seeds is available in health food stores, however I know nothing about the molecular size. I hope this helps answer the question. --- Milo Milo V. Anderson, Ph.D. Box 417 Angwin, CA 94508 voice 707 965 2508 fax 707 965 3148 e-mail [log in to unmask]