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People with mild B12 deficiencies experience changes in B12 effectiveness yet severe deficiencies need extended treatment time or stronger doses to produce noticeable results

Others may be highly observant and engaged but in ways that dont match typical developmental expectations

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Recommended Daily Amount of Vitamin B12 According to the NIH, the Recommended Dietary Allocation (RDA) for vitamin B12 is: Babies 0 6 months: 0.4 micrograms Babies 7 1 year: 0.5 micrograms Kids 1 3 years: 0.9 micrograms Kids 4 8 years: 1.2 micrograms Children 9 13 years: 1.8 micrograms Adult men and women over age 14: 2.4 micrograms Women that are expectant: 2.6 micrograms Women that are breastfeeding: 2.8 micrograms As compared to various other vitamins, we do not need a large amount of vitamin B12 yet we do need to restore our supply nearly each day