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By Novus Fumus, 19 october 2022

The Negative Effects of Smoking on Vitamin B12 Levels

It's no secret that smoking is bad for your health. But did you know that smoking can also lead to a vitamin B12 deficiency? A new study has found that chronic smokers have significantly lower levels of vitamin B12 in their blood than non-smokers. This deficiency can then lead to an increase in homocysteine levels, which is a risk factor for cardiovascular disease.

So what is vitamin B12 and why is it so important?

Vitamin B12 is a nutrient that helps keep the body's nerve and blood cells healthy. It also helps make DNA, the genetic material in all cells. A lack of vitamin B12 can lead to anemia, fatigue, and other serious health problems.

This new study looked at the serum concentrations of vitamin B12 in smokers and non-smokers. The participants were divided into two groups: those who smoked less than 15 cigarettes per day (the "chronic smokers") and those who didn't smoke at all (the "non-smokers"). The researchers found that the concentration of vitamin B12 was significantly decreased in the chronic smokers as compared to the non-smokers. They also found that smoking increased homocysteine levels and decreased vitamin B12 levels, which led to an increased risk of cardiovascular disease among smokers.

Why Does Smoking Cause Vitamin B12 Deficiency?

There are a few reasons why smoking can cause a vitamin B12 deficiency. First, smoking damages the lining of the stomach, which makes it harder for the body to absorb vitamin B12 from food. Second, smokers are more likely to have gastrointestinal disorders like Crohn's disease or ulcerative colitis, which can also interfere with absorption. Finally, some research suggests that nicotine might directly impact absorption of vitamin B12 by binding to receptors in the gut.


A vitamin B12 deficiency can cause some serious health problems, but it's not always easy to know if you're deficient.

You may be wondering how you can tell if you have a vitamin B12 deficiency. Symptoms can vary depending on the severity of the deficiency, but common signs include feeling tired or run down, tingling or numbness in the hands and feet, mood swings, and problems with balance and coordination.

If you think you might be at risk for a vitamin B12 deficiency, taking a supplement is a good way to make sure you're getting enough of this important nutrient. Our high-quality vitamin B12 supplement comes in a convenient 240-tablet bottle, so you can take it with you wherever you go.

Order Vitamin B12 online

Vitamin B12 tablets

Vitamin B12 – 240 tablets. € 22,95