For most people 1,000mcg per day will be enough
The reconstitution calculator eliminates guesswork
Further, a secondary analysis of a trial in women at high risk for or with existing cardiovascular disease reported that high-dose supplemental B-vitamins (1 mg/day of vitamin B 12 , 50 mg/day of vitamin B6, and 2.5 mg/day of folic acid) for 7.3 years had no effect on risk of non-vertebral fractures (122)
These biomarkers arent specifically used to determine whether vitamin B12 might help you, but they help your doctor understand your overall health and can help identify the cause of symptoms like low energy, mood swings, or a lagging libido
Studies examine GLP-1s potential role in: Results may vary
If vitamin B12 levels are low, people may experience: Persistent tiredness or fatigue Reduced energy levels Difficulty concentrating Dizziness or weakness For this reason, some travellers consider a B12 injection before a summer holiday in the North West UK to support normal energy levels and reduce travel fatigue