Vitamin B12 Deficiency, Nerve Pain & Fatigue – What you need to know.

Vitamin B12, or cobalamin is one of eight essential B Vitamin nutrients required for amino acid metabolism, energy production, nervous system function and mood (to name a few). It is the most chemically complex of all the vitamins. Vitamin B12 is not considered by GPs as a ‘red book’ routine test in Australia and therefore, a deficiency can fly under the radar in many individuals.

How does a deficiency cause fatigue and nerve pain?

Vitamin B12 is required for cellular energy production and metabolism, and is an important part of the Krebs Cycle. This promotes the production of adenosine triphosphate (ATP), which is the energy source for your brain and cells throughout your whole body.
Without B12, hello fatigue!

Vitamin B12 deficiency may also cause demyelination of nerves (loss of the nerve insulation) in the peripheral and central nervous systems. It is associated with large fibre (type A) neuropathy, and signs of a deficiency are generally nerve pain, pins and needles and tingling in both the hands and feet.

Top 5 signs that you might have B12 deficiency:

  • Fatigue
  • Nerve pain
  • Tingling in hands and feet
  • Mood changes
  • Poor sleep

How can we become deficient?

To understand how deficiency occurs, we must first understand how Vitamin B12 is absorbed. Vitamin B12 absorption happens in the gut. This is generally a two-step process to turn B12 into a form for the body to store it via in the li