Aims: To systematically review the literature on daily losses and bioavailability of vitamin
B12. These estimates could be used for deriving recommendations on vitamin B12 intake for …

Dietary and other determinants of vitamin B6 parameters. - Abstract - Europe PMC Sign in |
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Vitamin B12 deficiency poses a health concern, especially in vulnerable populations.
Dietary vitamin B12 intake was obtained by two 24 h dietary recalls and food propensity …

Background: Many randomized controlled trials (RCTs) and observational studies have
provided information on the association between vitamin B-12 intake and biomarkers. The …

Objective To systematically review the evidence for whether habitual or different levels of
experimental intake of vitamin B12 from diet and supplements is sufficient to ensure …

Current recommendations on vitamin B12 intake vary from 1.4 to 3.0 μg per day and are
based on the amount needed for maintenance of hematologic status or on the amount …

Vitamin B 12 (cobalamin) is essential for normal metabolic function, and even moderate
deficiency of this vitamin has negative health effects. Vitamin B 12 is found in animal foods …

Low vitamin B-12 concentrations are frequently observed among older adults.
Malabsorption is hypothesized to be an important cause of vitamin B-12 inadequacy, but …

Background: Studies have questioned whether the current Recommended Dietary
Allowance (RDA) of 2.4 μg vitamin B-12/d is adequate. Objective: We examined the …

Scope The nutrition societies of Germany, Austria, and Switzerland are the joint editors of
the “D‐A‐CH reference values for nutrient intake”, which are revised regularly. Methods and …