Frequency depends on the formula, your goals, and your providers guidance
Mild to moderate deficiencies of vitamin B12 are fairly common, with about 40% of people in Western populations reported to experience them [1]
You can easily find research-grade product online, but that isnt a route we recommend you take, considering the dangers involved
For confirmed B12 deficiency without neurological involvement , the standard regimen comprises 1 mg hydroxocobalamin intramuscularly three times weekly for two weeks, followed by maintenance doses every two to three months for those with irreversible causes like pernicious anaemia
People with B12 deficiency: Those with dietary restrictions (e.g., vegans, vegetarians), digestive issues, or certain medical conditions may benefit from B12 injections
High-Risk Populations for B12 Deficiency Some groups are more likely to have vitamin B12 deficiency