is b12 orally as good as injections vs. Oral Supplements: Which Better? Vitamin B12 Injections vs. Supplements:
Description
It depends on the brand

Other symptoms of vitamin B12 deficiency Beside numbness and tingling in your hands or feet you may experience the following ( 1 ): brain fog or difficulty with thinking and memory loss fatigue weakness problems with walking, coordination, or balance swollen, inflamed tongue yellow skin (jaundice) paranoia or hallucinations How do you know if you are deficient in vitamin B12

These include: Drugs called H2 receptor antagonists Metformin Proton pump inhibitors

B12 is not a stimulant like caffeine, so it cant suddenly cause you to feel like you have more energy