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All of them will work, but some will just be more comfortable to use
Risk factors for B12 deficiency include strict vegetarian diets, gastrointestinal conditions, and certain medications
Intravenous nutrient therapies contain higher concentrations of vitamins and minerals, which can be helpful for patients who suffer from chronic headaches and the effects will usually last a week or more
To gauge improvement, track specific issues you had before, for instance, frequency of mouth sores (which can occur with B deficiencies), or numbness in feet, or level of fatigue on a 10-point scale
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