Weight Loss: Does Vitamin B12 Really Work?

b12 vitamins in meat

Weight loss is one of the most profitable and largest industries in the western world. Vitamin B12 also known as cobalamin has shown many weight loss promoting properties and is available as an injection or oral supplement. But does it really work?

What is Vitamin B12?

Vitamin B12 is a water-soluble vitamin part of the B complex of vitamins, it plays some important roles in how our bodies function. It’s one of the 12 essential vitamins, it is necessary to keep nerves and blood cells of our body healthy. It is vital in the production of our DNA and helps prevent megaloblastic anemia.

Megaloblastic anemia is a disorder of the red blood which causes large numbers of underdeveloped and immature red blood cells. Because of this immaturity, they do not function like normal red blood cells, and in compete negatively against any healthy one. Red blood cells are a vital part of our body. They transport oxygen and nutrients to our cells. Without them, our body does not function properly.

So How Is Vitamin B12 Supposed To Help With Weight Loss?

girl being injectedRecently, vitamin B12 has been hyped as an energy and metabolism booster. While adding the B complex can help increase energy, vitamin B12 by itself does not necessarily do so. Those who take the injections and feel an increase in energy is mostly likely because they were deficient in the vitamin.

A deficiency in vitamin B12 causes anemia with symptoms of tiredness, weakness, fatigue, light-headedness, rapid heartbeat, fast breathing, pale skin, easy bruising, upset stomach, weight loss (not the healthy kind), diarrhea and constipation. When vitamin B12 deficiency goes on for an extended period of time, nerve damage can occur. S

It doesn’t actually directly cause weight loss

So, What Happens If I Get Too Much Vitamin B12

So, far studies have shown not an adverse affects on us. However, there may be a few different problems that are associated with having too much vitamin B12. Vitamin B12 can interfere with the absorption of certain medications, which means that the medicines will not be as effective as they need to be. These medications include:

  • Chloraphamphenicol: The trade name is Chloromycetin. A very powerful antibiotic that treats different bacterial infections when other antibiotics don’t work.
  • Proton Pump Inhibitors: Most commonly known as Prilosec and Prevacid, this medications are given to treat peptic ulcers and gastro-esophageal reflux disease (GERD).
  • Histamine H2 Receptor Antagonists: Sold as Tagament (cimetidine), Pepcid AC (famotidine) and Zantac (ranitidine), which are used to treat peptic ulcers.
  • Metformin: The trade name is Glucophage and is a power diabetic medication. Used to control blood sugar levels in type 2 diabetes, the malabsorption or interference with it can have devastating effects.

Before taking any supplement make sure you discuss it with your physician.

How you can B12 Naturally

The best source of B12 is actually in shellfish with 98.9μg per 100g. Others include;

  • Liver
  • Mackerel 
  • Red meat
  • Cheese 
  • Eggs

Include these in a well balanced diet and you will not need an expensive injection!

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