Exclusive Colostrum Intake in First Three Days Linked to Fewer Allergies, Aussie Researchers Find

Australian researchers have discovered that babies fed only colostrum in the first three days of life are far less likely to develop peanut allergy compared with those who receive both colostrum and formula. The findings highlight the unique immune-boosting role of colostrum — the “first milk” produced by mothers after birth — and raise questions about why it is not more widely recognised in health policies.

What the Study Found

The study, conducted at Joondalup Health Campus in Perth and published in Allergy, followed 666 children. Key findings include:

  • Only 0.3% of babies fed exclusively colostrum developed peanut allergy.

  • 2.7% of babies who received both colostrum and formula developed peanut allergy.

  • Babies exclusively fed colostrum were nearly 80% less likely to develop peanut allergy.

  • No child in the exclusive colostrum group had more than one food allergy, compared with four cases of multiple allergies in the partial-colostrum group.

The results suggest that exclusive colostrum feeding is a primary preventive strategy, while early peanut introduction may act only as a risk reducer.

Why Colostrum Matters

Colostrum is sometimes called “liquid gold” because of its concentrated nutrients and immune factors. It contains:

  • Growth factors that help the gut and organs mature.

  • Anti-inflammatory molecules that reduce allergy risk.

  • Microbiota-shaping molecules that build a healthy gut microbiome.

These components are absent or present only in low amounts in the formula.

Expert Insights

Professor Valerie Verhasselt, head of immunology and breastfeeding at The Kids Research Institute Australia, explained that colostrum is not about calories:

“In the first days of life, it is not about receiving calories, it is about receiving immune factors. That is how nature has designed the first days of life.”

She noted that mothers often produce only about 20mL of colostrum per day, which sometimes leads to unnecessary formula supplementation. However, when babies fill up on formula, they may miss out on critical colostrum feeds.

Gaps in Policy and Awareness

Despite its importance, colostrum is rarely included in official breastfeeding data or guidelines. For example:

  • The Australian Bureau of Statistics records breastfeeding rates from one month onwards, but not colostrum feeding.

  • The Australian National Breastfeeding Strategy does not mention colostrum at all.

Professor Verhasselt called for better support for mothers unable to produce colostrum and research into potential supplements that could mimic its unique immune properties.

What This Means for Parents

  • Exclusive colostrum feeding in the first few days of life may help protect against allergies.

  • Supplementing with formula in the early days could reduce the amount of colostrum a baby receives. There are natural ways to increase milk supply.

  • Weight loss in newborns is often normal in the first days — the focus should be on colostrum’s immune benefits, not calories.

Parents concerned about colostrum supply or infant feeding should speak with their GP, midwife, or lactation consultant for support.

Final Word

This Australian study sheds light on colostrum’s powerful role in early immunity. By raising awareness and reshaping policies, researchers hope more babies can benefit from nature’s “first vaccine” — the golden drops of colostrum.

References

Leave A Comment