Testing serum levels of B12 can be done, but serum B12 levels tend to be highly inaccurate
In the UK, the NHS recommends that everyone should consider taking a daily vitamin D supplement during the autumn and winter months (usually September to March), as sunlight alone is not a reliable source at this time of year
Although there are alternative options of B12 supplemantation, such as oral pills, Vitamin B12 injections are the most effective delivery approach as they are best absorbed by th body since they bypass digestion by the stomach and intestines
A prolonged, untreated deficiency can cause nerve damage that may become permanent
They are used in both people and animals to treat vitamin deficiencies, boost recovery, and manage conditions like fatigue, anemia, and neuropathy