Vitamin B 12 side effects
Fortunately, vitamin B12 side effects are quite rare.
In fact, when vitamin B12 supplements are taken orally then there is little chance of side effects occurring.
However there are reported cases of allergic reactions to vitamin b12 injections, but it is unknown if these allergic reactions are due to the vitamin b12 itself or the preservatives in the injectable vitamin b12. It can be causes by some preservatives contained in most vitamin b12 injections.
Vitamin B12 side effects
Vitamin B12 side effects can include:
- Mild diarrhea
- Heart palpitations
- Breathing problems
- Insomnia
- Anxieties and panic attacks
- Chest pain
- Skin rash, hives, or itchy or swollen skin
Other side effects may occur if you have an allergy or a sensitive to cobalamin and cobalt. In this case avoid vitamin B12 supplementation altogether.
Take tour Vitamin B12 from foods that contain naturally occurring B12.
Vitamin B12 also should be avoided by people suffering from Leber’s disease, a hereditary disease in which the optic nerve wastes away.
Ingesting vitamin B12 can actually speed up the atrophy of the optic nerve resulting in rapid loss of central vision.
Clinic evidence also suggest that patients who have undergone heart surgery and received coronary stents may have an increased risk of the artery narrowing again when they take vitamin B12.
As can be seen, vitamin B12 is a relatively safe vitamin with very few adverse side effects even when taken in large doses.
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