Human studies have not shown the same effect, but the family-history exclusion for medullary thyroid cancer is kept in place as a precaution
For example, symptoms of a Vitamin B12 deficiency may include: Loss of appetite Constipation, diarrhea, or both Weight loss Changes in how you move around Irritability or changes in how you feel or behave Confusion Brain fog or difficulty thinking Depression Impaired memory or cognition Sore or red tongue Mouth ulcers Altered vision Pins & needles Muscle weakness Fatigue and tiredness Nausea Treatment for a vitamin B-12 deficiency is usually accomplished through dietary changes, supplements, and sometimes, B-12 injections
The first one or two shots will not give you that immediate improvement you might expect
Krivic, A., Anic, T., Seiwerth, S., Huljev, D., & Sikiric, P
Instead, they are actively seeking science-inspired yet approachable options that fit their busy lifestyles
A: Generally, yes