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In developed countries, situations at greatest risk for deficiency include eating a diet restricted in fruits and vegetables, smoking or long-term exposure to secondhand smoke, and drug and alcohol abuse
Cofactors That Commonly Need Review Recovery can stall when cofactors are not optimised
The NIH reports that only about 10 micrograms of a 500-microgram oral supplement are actually absorbed in healthy people due to limitations of stomach acid and intrinsic factor
Injections Typically, injections for this treatment are made at areas of the body that have higher fatty tissue, such as the arms, thighs, buttocks, hips, or abdomen
Several autoimmune diseases can make it harder for your body to absorb B12, including pernicious anemia
