Ideal Bite's Tom Sparks discusses the health benefits of drinking beer.That may well be, say health experts who overwhelmingly agree the the connection may be more wishful thinking than solid science.
But that may not stop many brew lovers from viewing the new research as an excuse to order another round. The study of 100 commercial beers in the February issue of the Journal of the Science of Food and Agriculture by Charles Bamforth and Troy Casey of the University of California Davis examined the silicon content that results from different ingredients and brewing processes.
"Silicon impacts bone mineral density in humans, and supplementing silicon in the diets of osteoporitic women increased bone mineral density," the authors wrote. Thus, they surmise, silicon-rich beer may also help to strengthen bones.
Although a press release issued with the study prominently mentioned the link between silicon and bone health, the study itself did not look at bone mineral density or analyze any patient data, according to several researchers contacted by MedPage Today and ABC News.
Also, bananas and some grains have high levels of silicon, but for many, beer appears to be the richest source.
The authors wrote that they explored the silicon content in beer because the popular beverage has been identified as one of the richest potential sources of dietary silicon in the Western diet. The average intake is 20 to 50 mg/day.
The beers sampled contained an average of 29.4 mg/L of silicon. Beers made from a barley-based grist, as opposed to wheat-based beers, and brews containing more hops had the highest silicon levels.
The beer type with the overall highest silicon level was India Pale Ale, with an average of 41.2 mg/L. Other ales came in second with 32.8 mg/L.
Nonalcoholic beers, light lagers, and wheat beers had the least silicon.
In the study, the authors concluded that "beer is a substantial source of silicon in the diet" and that "beers containing high levels of malted barley and hops are richest in silicon," but they did not attempt to establish a link between beer drinking and bone health.
Experts contacted for comment on the study also cautioned the public against establishing any such connection.
"To conclude any bone health benefits from this study would require a great leap," said Dr. Tim Byers, deputy director of the University of Colorado Cancer Center in Aurora.
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