This might help explain a bit:
From Dr. Kenneth Singleton's book, "The Lyme Disease Solution"
"I have found that deficiencies of vitamins B12 and B6 are common in patients with Lyme and other TBDs. The reason vitamin B12 is so often deficient is that it is not found in significant amounts in plant foods. It is also easily depleted by stress, a common co-factor in chronic Lyme disease. Absorption from the intestines may be erratic, especially in the elderly. B12 plays many roles in the body, including helping to manufacture protein from amino acids and aiding in the metabolism of proteins, carbohydrates, and fats. It is also necessary for proper functioning of the nervous system and aids in the body’s production of red blood cells. Additionally, B12 can boost energy levels in the body and help to counteract poor gastrointestinal problems, memory problems, and mood swings.
Now, I always take these Lyme disease books that are written by docs with a grain of salt - we don't know how well their patients are doing, and if they were are very successful LLMD, I would think that they wouldn't have much time for writing a book. With that being said, I think we can all learn some from these books - especially when the info is backed up elsewhere.
Have I confused things enough yet? Hmmmm???