Does Vitamin B12 help with energy?
Yes, for most people. 90% of 103 people who reported on Vitamin B12 for energy say it improved. 4% noticed no change and 6% say it got worse. That is about the typical result for energy (87% across 95 options).
Energy: what users report
90%better103 reports · high confidence
93 better4 no change6 worse
Ranked #26 of 95 for energy.
What people say about Vitamin B12 and energy
“I supplemented with sublingual b12 and iron and daily electrolytes and I'm feeling much better.”
“1. If I take early in the morning, it helps with circadian rhythm. 2. If I take more late, it helps with energy.”
“Later lab tests uncovered both, and subsequent supplementation fixed a good deal of issues I had in terms of energy and sleep.”
“B12 just seems to give me energy and wakefulness; not much else.”
What the research says
AResearch: Strong376 meta-analyses · 572 trials on PubMed
None of the top reviews we found look specifically at energy. See all research on Vitamin B12.
Side effects people mention
acne 11anxiety 9jitteriness 6weakness 3vivid dreams 2
What else is Vitamin B12 used for?
Information only — not medical advice. How we count