Study Timeline

Study Design

Forty (40) infants who have not started solids will be recruited to participate in Phase 1 of the study. Participation will be for a total duration of 6 months. The intervention will begin by the time your baby is 6 months of age*. Starting the study will depend on when you decide to introduce complementary foods to their diet.

The study will be conducted in two stages to allow us to complete Phase 1 within a tight timeframe.

Thirty (30) babies will be recruited for Group 1 where they will receive a kumara powder to be incorporated into all solid food consumed. The use of kumara powder is accepted as safe for infant nutrition.

Ten (10) babies will be recruited for Group 2 where they will receive a probiotic control (Bifodobacterium Lactis) that is already known to have relevant immune benefit(s) and is accepted as safe for infant nutrition.

*The New Zealand Ministry of Health and World Health Organisation recommended age for introduction of complementary foods.

Time point 1

Age around 6 months

Clinic visit – The Liggins Institute

(University of Auckland Medical School Campus)

This measurement occurs before you decide to introduce complementary foods to your baby

  • Height
  • Weight
  • Blood (optional)
  • Stool sample
  • Urine Sample
  • Saliva sample
  • Breast milk (mother – optional)

Time point 2

Age 9 months

Clinic visit – The Liggins Institute

(University of Auckland Medical School Campus)

  • Height
  • Weight
  • Intervention adherence
  • 3-day weighed food record
  • Stool sample
  • Urine Sample
  • Saliva sample
  • Breast milk (mother – optional)

Final

Age 12 months

Clinic visit – The Liggins Institute

(University of Auckland Medical School Campus)

  • Height
  • Weight
  • Blood (optional)
  • Intervention adherence
  • 3-day weighed food record
  • Stool sample
  • Urine Sample
  • Saliva sample
  • Breast milk (mother – optional)

Additional opportunities for data collection

Specific consent will be sought for the collection of blood samples 

To be able to confirm reasons for GP visits for illness/immunisation/allergies and any prescription medication administered, we ask that you give consent for the following:

  1. To contact your GP/Doctor to obtain access to medical records for infection-related GP visits, medication use, and hospitalisation events from 6 to 12 months of age. 

  2. To allow the researchers access to your child’s immunisation records via “The National Immunisation Registry” in  New Zealand. This information will only be used to confirm the details you have provided in the study.

  3. To give consent allow the researchers access to any allergy testing information or skin prick test results that may be stored with your baby’s GP/Doctor. This information will only be used to confirm the details you have provided in the study.