Comment on How fast can the body absorb vitamin B12?
SinningStromgald@lemmy.world 3 days ago
www.mayoclinic.org/…/art-20363663
Safety and side effects
When taken at appropriate doses, vitamin B-12 supplements are generally considered safe. While the recommended daily amount of vitamin B-12 for adults is 2.4 micrograms, higher doses have been found to be safe. Your body absorbs only as much as it needs, and any excess passes through your urine.
High doses of vitamin B-12, such as those used to treat a deficiency, might cause:
Headache Nausea and vomiting Diarrhea Fatigue or weakness Tingling sensation in hands and feet
Emphasis mine.
Mothra@mander.xyz 3 days ago
To add to this: I went to the doctor after a nerve injury and asked whether taking B supplements would help with recovery. She said "no, No, NO please don’t take any extra B supplements because your levels are already fine. I’ve seen enough patients come with unexplained burning, tingling and twitching sensations in their bodies and it’s always because they take B supplements unnecessarily. So don’t even think about it "
So yes our bodies can filter a lot but even then it’s also possible to overdose. Doesn’t seem to be OPs case though.