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From: herman (
Subject:         B12 Supplement Chewing Study
Date: May 6, 2009 at 9:37 am PST

Hi Jeff,

From the research link you provided about B12, is an excerpt which refers to a study where increased levels of b12 where achieved by chewing tablets. Your thoughts would be appreciated. Thanks.




Chew or Dissolve Supplements Under the Tongue

Crane et al.6 (1994, USA) noted that tablets of one vitamin company dissolved slowly in water and acid. They then conducted a study to see if vegan patients who had not responded to oral B12 (described below) tablets swallowed whole could improve their B12 response by chewing the tablets. 7 people chewed the tablets of 100 µg (once a week for 6 weeks) and their average serum B12 levels went from 116 to 291. Of the 9 who didn't chew, theirs increased from 123 to only 139. (However, a 100 µg dose once a week is not a lot of B12. The more surprising result of this experiment was the large increase in the serum B12 of the 7 people who chewed the tablets, not the small increase of those who did not chew.)

7 of these 9 then chewed 500 µg/day for 10 days and their levels rose to normal with a final average of 524 ± 235. Three participants could not raise their levels orally and required B12 injections to maintain serum B12 above 300.

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