vitamin b12 injection side effects jittery anxiety palpitations Why do I feel worse after a injection: causes explained Feeling worse after B12 Injection:

Importantly, neurological symptoms such as tingling, numbness, or unusual sensations are more commonly associated with B12 deficiency rather than excess

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What can cause Vitamin B12 deficiency

It features high separation efficiency, high sensitivity, and good reproducibility, allowing accurate determination of the active ingredient content and related substances in the capsules

The slower movement of food from the stomach to the small intestine may delay the absorption of certain nutrients, such as carbohydrates and triglycerides