Aside from keeping your blood cells and nerves healthy, vitamin B12 plays a role in the production and development of sperm. A deficiency can mean problems like loss of libido and premature ejaculation. B12 supplementation may help improve sperm count, concentration, and motility in men with fertility issues. An adult needs about 2.4 mg B12 every day for the healthy functioning of the body.
We all know how vital vitamin B12 is for the production of DNA, nerves, and red blood cells. But that’s just the beginning of the story! Just like your brain and immune system, your reproductive organs also need a healthy dose of B12 to stay in good shape. And while the spotlight is often on its role in women’s reproductive health, men also have as much to gain (or lose!) from this vitamin. Here’s a closer look at how vitamin B12 calls the shots in men’s fertility and sexual health.
1. Increases Sperm Count And Sperm Concentration
Vitamin B12 plays an important part in the production and development of sperm. By extension, when you are deficient or have low levels of B12, it can take a toll on your sperm health. Studies show a link between a lower concentration of plasma vitamin B12 and infertility in men.1 B12 supplementation has shown promise and is, in fact, recommended when sperm count is affected. One study found that when 1,500 mcg of methylcobalamin, a form of vitamin B12, was administered daily to infertile men for a period ranging from 4 to 24 weeks, the total sperm count increased in 53.8% cases and sperm concentration increased in 38.4% cases.2 Further research will help firm up how exactly B12 can help and how to increase the success rate.
2. Boosts Sperm Motility
If you have poor sperm motility, your sperm doesn’t swim properly. This can affect its ability to travel to and fertilize an egg, resulting in fertility problems. But vitamin B12 may be able to improve motility in certain cases. In the same study that tested the effect of vitamin B12 supplementation on sperm count, it was found that sperm motility and total motile sperm count increased in 50% of the test subjects.
3. Prevents DNA Damage In Sperm Cells
If you suffer from varicocele, a condition where the veins in your scrotum get enlarged, you could have a low sperm production and poor sperm quality. In fact, infertile men with varicocele have been found to have the greatest percentage of sperm cells with damaged DNA compared to other infertile groups.
One study looked at the effect of treating infertile men with varicocele with a host of antioxidants including B12 for a period of 3 months. On an average, it was found that patients had 31.3% lesser degraded sperm cells and a decrease of 22.1% in sperm DNA fragmentation after this treatment. The total numbers of sperm cells increased as well.
4. May Prevent Premature Ejaculation
Statistics indicate that 1 in 5 men experiences premature ejaculation at some point in their lives.5 And this can interfere with a healthy sex life. Research now shows that low levels of vitamin B12 can be a factor associated with premature ejaculation. Making sure that you have adequate levels of vitamin B12 may, in turn, can help you tackle this problem.
5. May Prevent Loss Of Libido
While B12 may not be the primary reason for loss of libido, it’s worth checking for a deficiency if you have the problem. This is because a vitamin B12 deficiency can result in pernicious anemia, a condition where your body is unable to produce functional red blood cells. And one of the symptoms of pernicious anemia is the loss of libido. If this is indeed what is affecting your libido, consider B12 supplementation rather than trying to source it from food as pernicious anemia hinders your absorption of vitamin B12 from food.7 Loss of libido is also a common fallout of fatigue and depression, and both have been found to have a link with B12 deficiency. Researchers also suggest B12 supplementation, along with folic acid, to relieve symptoms of depression.
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