| http://www.w3.org/ns/prov#value | - Excess iron can cause stomach upsets, constipation, and kidney damage.In any case, it is always best to get your fiber naturally, from high-fiber wholefoods, rather than from a bran supplement???the phytates (see page 29) in raw bran may prevent the absorption of vital minerals, including calcium and iron, and this may be of some significance, especially for women and the elderly.
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