Generally the foods we eat contain a good amount of vitamins. Sometimes the body may not be able to absorb them well enough. In those cases, a supplement is provided. These supplements are pills or injections. Although a small amount of vitamin B12 is essential for the body, too much can cause some side effects. Especially if the supplement is taken as an injection, there may be some symptoms of side effects. Some general side effects are mild diarrhea, heart palpitations as the heart starts beating faster, skin rashes are also very common side effects of vitamin B12. Difficulty breathing followed by a fast heartbeat could be due to this vitamin. If this vitamin is taken as an injection, the effects can be instantaneous.
However, they disappear very soon. This is due to the fact that vitamin B12 is a water soluble nutrient. Even if it is taken in large amounts, or if it causes side effects, the body can soon flush it out of the system. Therefore, the side effects of vitamin B12 do not last long.
In some people, certain psychological effects are also visible. It causes anxiety and panic. These are also called panic attacks as they last for a short time. Due to the fact that vitamin B12 is also known to increase energy and metabolism, a person finds it difficult to sleep. This disorder is called insomnia. In this, a person becomes restless and cannot sleep at all. So, in other words, we can say that although it is a very good and very essential nutrient, it may not work the same way for everyone. Some may react when taken in excess. Adverse effects are more visible when taken as injections.
Some theories attribute the side effects to preservatives added to the injections, rather than the vitamin itself. It is recommended to opt for brands recommended by doctors. Sometimes, to avoid the hassle of a doctor’s visit or to save a little money, people are tempted to order online. The quality obtained in this way may not be guaranteed and therefore vitamin B12 side effects are more likely to occur in these cases. In a nutshell, this vitamin has many benefits, however, one must make sure to only take the recommended dosage. Any notice of these adverse effects should be reported immediately to a doctor.