June 20, 2024


Free For All Food

Ingesting milk throughout breastfeeding can minimize food stuff allergy in children

Youngsters of mothers who consume reasonably extra cow’s milk all through breastfeeding are at reduced threat of creating foodstuff allergies. That is the conclusion of scientists from Chalmers College of Engineering, Sweden, in a new review published in the scientific journal Vitamins and minerals.

The consequence is primarily based on a survey of more than 500 Swedish women’s ingesting patterns and the prevalence of allergy symptoms in their little ones at a single year of age.

“We have located that moms of healthy a person-12 months-olds consumed far more cow’s milk all through breastfeeding than mothers of allergic a single-yr-olds. While the association is crystal clear, we do not assert that ingesting cow’s milk would be a general remedy for food items allergy symptoms.” says Mia Stråvik, doctoral student in the Division of Food Science at Chalmers College of Technologies, and to start with author of the study.

There are several variables guiding the hazard of food items allergy, not least genetic predisposition. Nevertheless, as Mia Stråvik clarifies, “Eating plan is a aspect where mom and dad on their own can have direct impact. It is fairly common presently for young girls to stay away from consuming milk, thanks in element to prevailing trends and issues, some of which are linked to myths about eating plan.”

She details out that allergy to milk protein is unheard of in older people, so most ladies can take in milk and dairy products and solutions themselves with out challenge. Lactose intolerance is one thing completely unique, when the body can not break down milk sugars. And in this situation, lactose-free dairy items are tolerated by the overall body.

The hygiene hypothesis

In accordance to Professor Ann-Sofie Sandberg, Mia Stråvik’s supervisor, one particular feasible clarification could be that the milk in the mother’s diet includes substances that stimulate the maturity of the immune system.

“In a kid’s early enhancement, there is a time window where by stimulation of the immune method is vital for the baby to develop tolerance to distinct meals.”

According to something regarded as the cleanliness hypothesis, early call with different microorganisms can functionality as anything of a kickstart’ for a child’s immune process, she describes.

“But, with the lessen prevalence of microorganisms presently in our additional hygienic modern society, substances taken in by the mother’s food plan can be yet another way to promote the maturity of the immune technique”, states Ann-Sofie Sandberg.

Mia Stråvik’s study is not the first to website link cow’s milk in a mother’s eating plan to a minimized hazard of allergies in kids. Previous experiments, however, have typically been based mostly exclusively on questionnaire responses – both in conditions of having behavior and the presence of allergies. In this research both data and conclusions are substantially much more sturdy.

“In this study, we have been able to in fact validate the women’s noted intake of milk and milk merchandise by biomarkers in her blood and breast milk. The biomarkers are two fatty acids shaped in the cow’s belly, which are precise to dairy items,” says Mia Stråvik. “In addition, all the situations of allergy in youngsters were diagnosed by a medical professional specialising in youngster allergies.”

The examine is portion of a a lot more comprehensive investigation project developed all over a relatives cohort research of 655 people who gave start at Sunderby Hospital near Luleå, northern Sweden, throughout the many years 2015 – 2018. The job was initiated, and the cohort set up, by Ann-Sofie Sandberg from Chalmers, Professor Agnes Wold at the University of Gothenburg and the main doctor and paediatric allergist Anna Sandin, affiliated with Umeå University and Sunderby Healthcare facility.

The present-day review is the first scientific publication, focusing largely on allergy symptoms primarily based on information collected from the families in northern Sweden.

A obvious connection

The moms in the analyze, additional than 500, gave comprehensive accounts of their consuming routines on three events – in the 34th week of the pregnancy, a person thirty day period just after the delivery and 4 months immediately after start. At one particular calendar year of age, the kids were being medically examined, and all conditions of meals allergy, atopic eczema and bronchial asthma ended up identified.

After the content was altered for different other factors, such as hereditary predisposition or reverse causation, the scientists have been ready to establish that there was in truth a apparent connection concerning the mother’s intake of milk and dairy items and the smaller incidence of foods allergy in their kids.


No matter how we seemed at and interpreted the info, we arrived to the very same summary. The mechanisms behind why milk has this preventative effect in opposition to allergy symptoms, nonetheless, are still unclear.”


Malin Barman, Researcher and Co-Writer, Assistant Supervisor to Mia Stråvik, Chalmers University of Technological know-how


A further clarification of several hypotheses can be identified beneath.

A different final result in the examine that Mia Stråvik highlights is that small children of breastfeeding mothers, who at the four month measurement were being consuming a good deal of fruit and berries, tended to put up with from eczema to a a great deal increased extent – nevertheless she stresses that more reports are needed right before just about anything can be claimed with certainty about this link.

A stick to-up examine is at this time underway to look at the kid’s wellness at the age of 4.

Browse the write-up in the scientific journal Nutrition:
Maternal Ingestion of Cow’s Milk for the duration of Lactation Is Affiliated with Decrease Prevalence of Meals Allergy in Offspring

More about: boy or girl allergies

Allergy is the most popular chronic ailment that impacts kids, and is turning out to be ever a lot more prevalent in Sweden and other industrialised countries. Of the 508 youngsters integrated in the existing research:

  • 7.7 % of the small children (39) had a identified foods allergy at one particular 12 months of age, most usually to cow’s milk or eggs (or both)
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  • 6.5 % of the little ones (33) had been identified with atopic eczema and the similar sum have been diagnosed with asthma
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  • 23 p.c of the children had allergy symptoms of some sort (including non-foods-primarily based) at the age of 1 12 months
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How does milk bring about these outcomes?

It is unclear accurately why cow’s milk in the mother’s eating plan can lessen the chance of youngster allergy. In accordance to researcher Malin Barman, there are several possible explanations, that could perhaps work jointly.

“One particular speculation is that cow’s milk is made up of a thing that activates the child’s immune method and aids it to produce tolerance. This as-yet unknown bring about could be located in the fat of the milk or in its protein content. But it could also be the case that the milk by itself is neutral in relation to the immune technique. Then it could possibly be additional only a subject of a increased intake of milk fat leading to a fairly decrease consumption of polyunsaturated fats.

This would assist, for the reason that we believe substantial degrees of polyunsaturated body fat in a mother’s eating plan can counteract the maturation of a kid’s immune program at an early age.”


Journal reference:

Stråvik, M., et al. (2020) Maternal Ingestion of Cow’s Milk through Lactation Is Affiliated with Lower Prevalence of Meals Allergy in Offspring. Nutrients. doi.org/10.3390/nu12123680.