Monthly vitamin B12 injection can benefit not only these at-risk populations, but all individuals regardless of if your deficient or not
Other possible neurological symptoms are vision changes, confusion, lack of co-ordination, irritability and memory loss
10.1080/088800199277489 3 ArcanP.BozkurtO.CavusogluD.GencpnarP.HaspolatS.DumanO.et al (2020)
The good news is that vitamin B12 is safe, even in large doses
However, consumption of any type of vegetarian diet dramatically increases the prevalence of vitamin B 12 deficiency in individuals across all age groups (127, 128)
When this happens, your body will tend to store more fat as energy reserve, which eventually leads to unnecessary weight gain