Vitamin B12
Vitamin B12, also known as cobalamin is a water- soluble vitamin that has a key role in the normal functioning of the brain and nervous system and the formation of red blood cells. B12 is involved in the metabolism of very cell in the human body affecting DNA synthesis.
Humans are not capable of producing B12. Only bacteria and archaea have the enzymes needed for its synthesis. For this reason, we must obtain B12 from the food we eat or in supplemental form.
Here at Nuriss we offer a blood test to analyse your B12 levels. We can then bespoke a nutrition plan to ensure you are getting enough of this important vitamin. We offer Nourish lounge B12 shots to help increase your energy levels, strengthen your immune system and optimise your health and well-being.
Absorption of B12
There are 2 vital steps that must happen for the body to absorb B12. Firstly, hydrochloric acid in your stomach separates B12 from the protein in food that it is bound to. After this step occurs, B12 is attached to a protein made by the stomach called Intrinsic factor and is then absorbed by the body. This highlights the importance of good digestive health for the absorption of this essential vitamin (1).
B12 deficiency
B12 deficiency in thought to be one of the worlds leading nutrient deficiencies. A study published by the American Journal of Clinical Nutrition suggests that up to 39% of the general population may be suffering from some form of B12 deficiency (2).
Symptoms of B12 deficiency
Chronic fatigue 
Muscle aches and weakness
Poor memory
Poor ability to concentrate
Mood changes like depression or anxiety
Poor dental health like bleeding gums
Digestive problems including bloating, reflux, cramping
Poor appetite
Best sources of B12
Grass feed beef and chicken 
Salmon
Herring
Mackerel
Sardines
Tuna
Trout
Organic yoghurt
Raw milk
Benefits of Vitamin B12
- Supports nervous system to reduce mood disorders such as depression and anxiety B12 combined with folate is needed for the formation of SAMe (S-adenosyl methionine), which is a compound crucial for neurological function.
- Helps maintain energy levels. B12 is needed for the conversion of glucose into energy. B12 is also needed for the neurotransmitter that signals muscle contraction. A deficiency in B12 can leave you feeling run down, fatigued and tired.
- Prevents memory loss B12 has a central role in nerve health and neurotransmitter signaling. It is thought to lower the risk of Alzheimers disease (3)
- Supports healthy skin and hair Due to B12s role in cell reproduction it can help to reduce redness, dryness, inflammation and acne. It can also help to strengthen hair and nails
- Helps maintain a healthy heart B12 helps to maintain heart health by reducing elevated homocysteine levels which is now considered a major risk factor for heart disease. Homocysteine is an amino acid and its levels in the blood are affected by our B vitamins, including vitamin B12.
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