Vitamin B12 deficiency, especially below 400 pg/ml, can lead to serious neurological problems such as neuropathy or memory disorders.

The recommended dose of vitamin B12 supplementation varies depending on individual needs and health condition. For most adults, a daily dose of 2.4 micrograms is recommended, however, in case of deficiency, doctors often recommend higher doses, reaching up to 1,000 micrograms per day, especially in the form of injections or oral tablets. It is also important to consult with your doctor before starting supplementation, who can conduct additional tests and adjust the dosage to your needs.

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