My remark: a “normal” low B12 can lead to recurrent miscarriage and I have seen one small child with epileptic seizures getting better with B12

Dr Weil mentions the most common problems and indeed until today this issue is often ignored by doctors

B vitamins help support adrenal function, help calm and maintain a healthy nervous system, and are all necessary for key metabolic processes. Vitamin B12, also known as cyanocobalamin, is necessary for DNA synthesis and affects the development of red blood cells, normal myelination (insulation) of nerve cells, and the production of neurotransmitters which are essential to the nerves’ messaging and mood systems.

Deficiencies of B12 can lead to:

  1. Memory loss
  2. Confusion
  3. Fatigue
  4. Dementia

Know that commonly used medications like the diabetes drug metformin, birth control pills and acid suppressing meds can deplete the body of B12, promoting these concerning side effects.

Animal-derived foods, including dairy, eggs, meat, fish and poultry are the only food sources of B12, so this important vitamin is often deficient in vegan diets. Those with weaker digestive health may be at risk as well. Good ocean sources are clams, herring, cooked oysters and wild Alaskan salmon.

These recipes feature foods that provide B12:

To help meet daily needs, Dr. Weil recommends a B-complex supplement that contains a full spectrum of B vitamins, including thiamine, B12, riboflavin and niacin. It is always a good idea to have your provider monitor vitamin B12 levels to ensure you are getting enough, particularly if you are on any of the medications listed above.