
A NEW study in the February issue of the Journal of the Science of Food and Agriculture suggests that beer is a significant source of dietary silicon (Si), a key ingredient for increasing bone mineral density. Researchers from the Department of Food Science & Technology at the University of California, Davis studied commercial beer production to determine the relationship between beer production methods and the resulting Si content, concluding that beer is a rich source of dietary silicon. "The factors in brewing that influence Si levels in beer have not been extensively studied," said Charles Bamforth, lead author of the study. "We have examined a wide range of beer styles for their Si content and have also studied the impact of raw materials and the brewing process on the quantities of Si that enter wort and beer." Si is present in beer in the soluble form of orthosilicic acid (OSA), which yields 50% bioavailability, making beer a major contributor to silicon intake in the Western diet.
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