EFSA has finalised its DRV reports on vitamin D and potassium, and produced a draft recommendation on thiamin (vitamin B1).

On the basis that a serum 25-hydroxyvitamin D concentration of 50 nmol/L is indicative of an adequate vitamin D status, EFSA calculated adequate intakes (AIs) of 15 µg/day for all adults and children aged at least 1 year, and 10 µg/day for infants aged 7-11 months. The values were calculated under the assumption that there would be minimal vitamin D synthesis in the skin (from exposure to sunlight). In reality, dietary requirements may be lower than the AIs, possibly even zero for some individuals.

With regards to potassium, an AI of 3500 mg/day was proposed for adults (including pregnant women, but with a higher AI of 4000 mg/day for breast-feeding women). Extrapolating from this value, an AI of 750 mg/day was set for infants aged 7-11 months, and AIs for older children ranged from 800 to 3500 mg/day.

For its draft on thiamin, EFSA considered red blood cell enzyme activity (specifically, erythrocyte transketolase) to be related to adequate thiamin status. It endorsed an average requirement (AR) of 0.072 mg/MJ energy, and a population reference intake (PRI) of 0.1 mg/MJ, for all adults and children from 7 months of age.

European Food Safety Authority (2016). Dietary reference values for:

Potassium. http://onlinelibrary.wiley.com/doi/10.2903/j.efsa.2016.4592/full

Thiamin. http://www.efsa.europa.eu/sites/default/files/consultation/161005.pdf

Vitamin D. http://onlinelibrary.wiley.com/doi/10.2903/j.efsa.2016.4547/full


The above items were taken from the December 2016 issue of Toxicology and Regulatory News which is sent automatically to members of bibra (click here)

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