By Dr. Bob McCauley
If low levels of B12 remain for a long time, the condition also can lead to irreversible damage to nerve cells, which can cause the following symptoms:
- Numbness and tingling in the hands and feet.
- Difficulty walking or moving.
- Muscle weakness.
- Memory loss.
Not all forms of vitamin B-12 produced by microbes are metabolically active for
mammals. Some forms are termed “analogs” or “corrinoids” because they are sufficient for enzymatic reactions and the growth of microorganisms, but do not fulfill the specific roles in humans.
The active form, cobalamin, is of significant interest to strictvegetarians because this particular vitamin is essential for normal maturation and development of blood cells (erythrocytes), but it is not normally obtained by consuming pure plant foods. The ultimate source of all vitamin B-12 is derived at the microbial production level. Although plants and animals cannot synthesize or store vitamin B-12, it is effectively passed through the food chain, accumulated and recycled by animals. Spirulina as a Source of Cobalamin Vitamin B-12
Test for Vitamin B-12: Stand at attention, close your eyes, put your right foot out and you should be able to hold you balance. If you can’t balance yourself then you may have a Vitamin B-12 deficiency.