For most people, it works best as part of a comprehensive fatloss strategy, not a replacement for one.
It also plays a critical role in brain function, metabolism, and nerve regeneration
B12 injections provide better absorption than oral dose alternatives, especially for those with folate deficiency anaemia or taking proton pump inhibitors
Tiredness, stress, ill-health, poor or limited diet will all reduce this absorption further. For some people, taking a vitamin B12 supplement is one of the easiest ways to maintain healthy levels
However, patients should be aware of potential side effects and know when to seek medical attention
[3] However, B 12 deficiency in the elderly is a significant concern, and is related to dementia