Does drinking milk make kids grow taller?

Yes, according to peer-reviewed research. A 17-year longitudinal birth cohort study published in the Journal of Nutrition found that higher milk consumption in childhood is associated with increased height. A separate systematic review of controlled trials confirmed that dairy product consumption is positively associated with both height and bone mineral content in children.

What nutrients in milk support child growth?

Milk contains several nutrients directly involved in childhood growth: protein (including casein and whey) that supports muscle and tissue development, calcium and phosphorus essential for bone mineral density, vitamin D which regulates calcium absorption, and insulin-like growth factor 1 (IGF-1) which plays a role in stimulating linear bone growth.

How much milk do children need to support healthy growth?

Research on childhood dairy intake and height generally finds positive associations across a range of consumption levels. The 17-year cohort study found benefits with higher longitudinal intake over time, suggesting consistent daily consumption throughout childhood — rather than any single threshold amount — is the relevant factor.

PubMed links to studies researching milk intake and increased height among children.

Milk Makes Kids Grow Taller

9/3/2025

Higher milk consumption in childhood is associated with increased height.

What the Research Says About Milk and Child Growth

The association between milk consumption and childhood height is one of the most consistently replicated findings in nutritional research. Milk delivers a package of growth-relevant nutrients that are difficult to obtain in combination from other foods: complete protein containing all essential amino acids, bioavailable calcium and phosphorus for bone mineralization, vitamin D to regulate calcium absorption, and naturally occurring insulin-like growth factor 1 (IGF-1), a hormone directly involved in linear bone growth.

The research on this question spans study designs — from large longitudinal cohorts tracking the same children over years to systematic reviews pooling the results of controlled trials. The consistent finding across methodologies strengthens the case considerably: this isn’t a single study result that could be an artifact of study design or population. Multiple independent lines of evidence point in the same direction.

It’s worth noting that the fat content of milk appears to matter for growth outcomes. Fat-soluble vitamins A, D, E, and K are present in meaningful amounts only in whole milk, and vitamin D in particular is essential for the calcium absorption that underlies bone mineral density gains. This is one reason researchers examining dairy and child growth typically find stronger effects with whole milk consumption than with reduced-fat alternatives, and why recommendations to serve children low-fat milk have been revisited by nutrition researchers in recent years.

For families interested in maximizing the nutritional value of the milk their children drink, raw whole milk from grass-fed cows retains the full complement of these growth-supporting compounds — including heat-sensitive enzymes and fat-soluble vitamins that are partially degraded during pasteurization and homogenization. Find raw milk near you using the GetRawMilk.com map.