A nationwide study warns parents to continue to "slip, slop, slap and wrap" their toddlers, but they should also not be afraid to push them outdoors to soak up some vitamin D.
As of this month, Massey University is calling for 1600 preschool children to take part in finding out whether they are low in vitamin D.
Co-director of the Health Research Council Dr Pamela von Hurst has been supervising the study, and said there was no information available on this subject for this age group.
She said the research would look at whether a lack of vitamin D also played a part in children developing conditions such as asthma and allergies.
Each toddler would have a finger pricked and there would be a 10-minute questionnaire.
Results of the study are expected to be available in 2014.
Next year, Massey University will open a College of Health, which will include the Vitamin D Research Centre.
- Manawatu Standard
Should Manawatu's earthquake-prone buildings be yellow-stickered?Related story: Council won't use earthquake-risk stickers