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With around 15% of people failing to get the right levels of Vitamin B12 through their diet alone and with the body unable to produce any for itself, supplements and injections have become a common solution

Trends in Endocrinology and Metabolism (2017) 8

5-Amino-1MQ oral and subcutaneous route comparison Factor Administration Oral capsules Capsule taken by mouth Subcutaneous injection Reconstituted solution placed under the skin Factor Commonly discussed research amounts Oral capsules 50 to 150 mg per day in community reports Subcutaneous injection 2.5 to 5 mg per day in community reports Factor Frequency Oral capsules Once daily or split between morning and midday Subcutaneous injection Usually discussed as once daily, with some split examples Factor Absorption evidence Oral capsules 38.4% oral bioavailability in one rat study

Many benefits, no issues." Believer Phil D