The overwhelming consensus in the mainstream nutrition community, as well as among vegan health professionals, is that plant foods do not provide vitamin B12. Despite this, some vegan advocates still believe that plant foods provide all the nutrients necessary for optimal health and, therefore, do not address vitamin B12 when promoting the vegan diet. Other vegan advocates acknowledge the need ...

In this contribution we investigated the correlation between plasma vitamin B12 levels and cognitive impairment in Alzheimer's disease. We could demonstrate a significant inverse correlation when the MMSE scores of those patients with the lowest 10% Vitamin B12 plasma levels (<184 ng/ml) were compared with the upper 10% Vitamin B12 plasma levels (>598 ng/ml): p=0.008, Spearman-Rho= -0.36. MMSE ...

The earlier literature on the pathology produced experimentally with diets lacking vitamin B (for the most part the undifferentiated vitamin B complex) has been reviewed by Zimmerman and Burack.'5 Their review may be summed up briefly as follows: Myelin degeneration in peripheral nerves, and sometimes in the spinal cord, has been described by many workers as occurring in several species of labo...

 B-complex vitamins and vitamin C are water-soluble vitamins that are not stored in the body and must be replaced each day.  These vitamins are easily destroyed or washed out during food storage and preparation.  The B-complex group is found in a variety of foods: cereal grains, meat, poultry, eggs, fish, milk, legumes and fresh vegetables.  Citrus fruits are good sources of vitamin C.  Us...

A rapid, robust, sensitive and specific LC-MS/MS assay using the AB SCIEX QTRAP 6500 system has been developed for the simultaneous detection of all major forms of vitamin B complex. The method detects all currently used forms of vitamin B6 and vitamin B3 in infant formula and includes vitamin B12. The sample preparation allows the same extract to be used for Vitamin C detection and the LC-MS/M...

Burrows (1) has been led to believe that cancer may be due to a local excess of vitamin B in the tissue and he and his co-worker Jorstad bring forward some evidence that the Jensen rat sarcoma does actually contain an abnormally great amount of this accessory food substance (2) (3). They fed young rats a basic diet free from vitamin B to which were added ten grams Jensen rat sarcoma and from th...