is sublingual b12 as good as injections Should You Take Natural vs. Synthetic B12? Vitamin B12 Injections vs. Oral

Its more common when a cannula is used

Connolly JPR, Slater SL, OBoyle N, Goldstone RJ, Crepin VF, Gallego DR, et al

There are a few advantages to using oral supplements, including: Convenience: Oral supplements are easy to take, and you can take them anywhere, anytime Cost-effective: Most oral supplements are relatively affordable and provide a cost-effective way to supplement your daily vitamin intake Widely available: Oral supplements are widely available and can be purchased from pharmacies, health stores, or online Although oral supplements are a more widely known and accessible way to get your daily vitamin intake, they come with some significant disadvantages in comparison to vitamin injections: Poor absorption: Oral supplements must pass through the digestive tract, and not all the vitamins and nutrients are absorbed by the body

Fox SE, Levitt P, Nelson CA

Research suggests a direct link between B12 levels and mental health