B12 contributes to the production of red blood cells which carry oxygen all around our bodies. Oxygen travels from your lungs into the blood and flows to all your vital organs: brain, lungs and muscles. If these organs do not receive enough oxygen, they’ll slow down and you’ll experience fatigue and tiredness.
B12 is thought to aid with the digestion and absorption of macronutrients.
Fats, proteins and carbohydrates are all metabolised by B12 into energy. Without the right amount of B12 in your diet, vital nutrients will not pass through your body and not absorb into the blood – causing deficiencies.
B12 contributes to the normal functioning of the nervous system, so may aid with the reduction in the effects of stress and anxiety on the body.
It’s needed for the proper development and functioning of the brain which may also aid with ailments such as stress and anxiety.