UC seeks toddler volunteers for milk study

Researchers to study whether whole or low-fat milk is best for toddlers

San Francisco Bay Area toddlers who drink cow's milk are being sought to participate in a 12-month study by UC Nutrition Policy Institute, a part of University of California Agriculture and Natural Resources. Milk will be provided for free to participants.

Milk provides children with calcium, protein and vitamin D, which are essential for health and brain development. In the U.S., the American Academy of Pediatrics recommends that children switch from whole milk to low-fat or nonfat milk after age 2 to reduce their intake of saturated fat and calories.

"The purpose of this UC study is to see how the type of milk toddlers drink affects their health, growth and development," said Kassandra Bacon, NPI project policy analyst.

Researchers with the Nutrition Policy Institute are recruiting children ages 23 to 30 months old. The 625 toddlers will be randomly assigned to drink either whole fat or 1% fat milk starting at age 2. The scientists will assess body fat, diet, health and developmental outcomes.

"We will follow each participant for one year, collecting baseline and follow-up data," said Ryan Williams, a NPI project policy analyst and registered dietitian who is involved in the research.

For 12 months, the scientists will measure each child's height, weight, waist and head circumference. They will ask the parents what else the toddlers eat. They also will ask parents to check their child's blood profile - lipids, cholesterol, insulin resistance and vitamin D - cognitive development and gut microbiome diversity.

Benefits to participants

The assigned milk type will be delivered to participants free of charge via a grocery delivery service. Participating parents will receive advice from a registered dietitian to support healthy milk consumption as part of a balanced diet. The Nutrition Policy Institute also will send the parents monthly newsletters with general health tips. Participants also may earn up to $275 in gift cards by completing the study.

Requirements to participate

Participants for the milk study must meet these requirements:

• Child must be 23 to 30 months old and have public or private medical insurance
• Child's parent/legal guardian must be 18 years or older
• Child must live in the San Francisco Bay Area (Alameda, Contra Costa, Marin, Santa Clara, San Francisco or San Mateo counties)
• Child's parent must speak English and/or Spanish

Children are ineligible for the study if they are:

• a WIC participant
• lactose intolerant
• allergic to milk protein

Lorrene Ritchie, NPI director and registered dietitian and NPI director, and Anisha Patel, pediatrician at Stanford Medicine Children's Health and professor in the Division of General Pediatrics at Stanford University, are the principal investigators for the study.

For more information about the research and to sign up for the study, visit https://npi.ucanr.edu/milk.

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