http://www.ars.usda.gov/is/pr/2000/000802.htm
Oddly, the researchers found no association between plasma B12 levels and meat, poultry, and fish intake, even though these foods supply the bulk of B12 in the diet. “It’s not because people aren’t eating enough meat,” Tucker said. “The vitamin isn’t getting absorbed.”
One more link about it:
http://www.findarticles.com/cf_0/m0820/ ... html?term=
