If you are disturbed by the smell of the mouth, then this vitamin is deficiencing, know expert opinion

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To meet its deficiency, you should consume eggs, milk, yogurt, cheese, salmon and tuna fish, chicken and red meat fortified grains like bread and serials. Vitamin B12 deficiency can be met by them. By the way, if you are a vegetarian, you can take B12 supplements or injections with the advice of a doctor.