In this case, less is definitely more intoxicated that is
Causes of vitamin B12 deficiency Several things can cause vitamin B12 deficiency, including: pernicious anaemia your immune system mistakenly attacks cells in your stomach that produce intrinsic factor (a protein you need to absorb vitamin B12) diet plant-based diets, like vegan, vegetarian, and dairy-free diets are sometimes lacking in vitamin B12 medication some medications, like proton pump inhibitors (PPIs), can inhibit the absorption of vitamin B12 Youre also more at risk of vitamin B12 deficiency if you: are pregnant or breastfeeding are over 50 years old because you might stop producing enough hydrochloric acid in your stomach, which is needed for absorption of vitamin B12 suffer from a gastrointestinal disorder like coeliac disease or Crohns disease You should also remember that folic acid supplements can mask vitamin B12 deficiency

A good example of this is understanding why a GP practice is asking to retest your blood for intrinsic factor antibodies (after a diagnosis of PA) or retest your B12 levels while you are on injections because the guideline is clear that this is not necessary
Bartolo L, Afroz S, Pan YG, Xu R, Williams L, Lin CF, et al
There are several factors that lactating mothers should be aware of before deciding if postnatal supplements are right for them
The prescribing information states "colorless to slightly yellow," so a very subtle yellow is perfectly normal