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PEN - The Global Resource for Nutrition Practice

The new PEN System interface is now live!

Planned Maintenance PEN will be undergoing planned maintenance on July 30, 6:00 p.m. UTC to 9:00 p.m. UTC. You may experience brief service interruptions during this window.

Trending Topics

...a hot take on a trending topic

Trending Topics articles are published in timely response to evidence or media publications and may not be consistent with PEN evidence in other content areas. When this occurs, the PEN content will be reviewed and updated in the near future.

Vitamin B12 in Pregnancy

A concern about vitamin B12 deficiency causing adverse outcomes in pregnant women, particularly of South Asian descent, prompted us to look more closely at this hot topic. We identified a systematic review (SR) that focused on the vitamin B12 status of women and infants living in India (1).

Vitamin D Update: Supplementation and Pregnancy and Perinatal Outcomes and 25-hydroxy-vitamin D as a Marker for Nutrient Deficiency and Sufficiency

Trending Topic - Recent Research on Vitamin D

A PEN® system trending topic review on recent evidence related to vitamin D screening and supplementation.

Folate During Pregnancy and Autism - A Recent Study

Iodine Deficiency in the U.K.