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Age-related decline in gastric acid production and intrinsic factor availability may reduce the bodys ability to absorb oral B12 and other nutrients, making IM delivery a practical alternative
doi: 10.1097/MED.0000000000000475 58 MartinMMHammanBL
Vitamin B12 is an essential nutrient that helps the body produce red blood cells, keeps nerves healthy, and supports DNA formation
At a glance: RDA: Men: 1.3 mg/day | Women: 1.1 mg/day UL: Not established (insufficient evidence to set a tolerable upper limit) [ref] Forms of riboflavin found in supplements: Riboflavin is available in two forms: riboflavin 5-phosphatase (R5P), the active form that doesnt need to be converted
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