Vitamin B12 is important
for the health of red blood cells

How does vitamin B12 work?

Vitamin B12 belongs to the B group of vitamins Some B vitamins affect each other. For example, vitamin B12 affects the metabolism of folic acid (vitamin B9).

Vitamin B12 is a water soluble vitamin and is also known as cobalamin. This vitamin plays an important role in the formation of red blood cells and helps the nervous system to properly. Red blood cells are important for the transport of oxygen within the body. The optimal absorption of vitamin B12 in the body depends on a substance called intrinsic factor (IF), which is produced in the stomach. The human body is capable of storing vitamin B12.

Vitamin B12 in the diet

Vitamin B12 is only found in foods of animal origin such as meat and meat products, fish, eggs, milk and dairy products. Vitamin B12 is a water soluble vitamin and is relatively stable when exposed to cooking. To avoid losing the value of this vitamin, it is important not to boil or cook food more than necessary

Vegans and vegetarians

Because vitamin B12 is present only in foods of animal origin, vegans and vegetarians should make sure that they have an adequate level of this vitamin in their body.

Lack of vitamin B12

A deficiency of vitamin B12 causes primarily a deficiency of folic acid (vitamin B11), given the close link between these two vitamins. Any deficiency may also cause the onset of anaemia, with symptoms such as severe fatigue, shortness of breath, angina pectoris (or pain in the centre of the chest), and loss of appetite.

Excess of vitamin B12

There are no known adverse effects of a high intake of vitamin B12.

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Following the placement of a gastric band or sleeve

Following the placement of a gastric band, many patients take antacid drugs that inhibit significantly the absorption of vitamin B12. Following removal of part of the stomach following a sleeve procedure, the substance known as intrinsic factor (IF), which is necessary for absorption of vitamin B12 in the body, is produced in lower amounts. For those who are undergoing surgery for placement of a gastric band or sleeve it is therefore important to take least 2.5 to 10 micrograms of vitamin B12 daily. This value corresponds to 100-400% of the Recommended Daily Allowance.

Following gastric bypass surgery, duodenal switch or biliopancreatic diversion procedures

Because of the significant reduction of gastric capacity after this type of surgery, the substance known as intrinsic factor (IF), which is necessary for absorption of vitamin B12 in the body, is produced in lower amounts. Because changes made to the stomach and small intestine after this type of surgery, your need for vitamin B12 is particularly high. Therefore, it is necessary to assume an amount of between 300 and 500 micrograms, or 12000-20000% of the recommended daily requirement, to provide your body with an adequate daily intake.

Vitamin B12 supplements

After surgery for weight loss, the need for vitamin B12 is very high. FitForMe’s WLS Optimum and WLS Forte supplements can help you meet the shortfall in vitamin B12 post-surgery. Using these supplements means it would no longer be necessary to consider using injections of vitamin B12.

WLS Optimum and WLS Forte can help you take on the adequate amount of vitamin B12, and all in just one capsule per day. For more information, please refer to our homepage: www.fitforme.co.uk

Questions?

Do you have any questions about vitamin B12 or other topics? Contact our Customer Support team or send an email to info@fitforme.co.uk

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