B12 vitamin side effects

B12 Vitamin Side Effects. Mild diarrhea andor upset stomach. Some of the most common side effects of vitamin B12 deficiency include weakness anemia constipation decreased appetite and unintentional weight loss. Although rare vitamin B12 injections can cause some serious side effects. The injections can create problems in various body parts.

Vitamin B12 is an essential nutrient with many health benefits. Other rare reactions involve the muscles including muscular cramps muscle weakness muscle soreness and tingling. Although rare vitamin B12 injections can cause some serious side effects. A B12 deficiency may cause negative side effects from fatigue to memory and oral health issues. Occasionally very serious side effects can occur including pulmonary edema or congestive heart failure blood clots in veins swelling or a rare blood cancer called polycythemia. Vitamin B12 is LIKELY SAFE for.

The injections can create problems in various body parts.

Vitamin B12 Side Effect 4. Oral vitamin B-12 is safe to take at recommended doses for healthy people. Vitamin B12 is considered safe even in large doses. It is often difficult to tell what causes headaches partly because there are so many potential causes. Rashes are usually the result of a reaction to something that is within or on the body. Most documentation papers indicate you might experience any of these.