Sun and bacteria to prevent asthma and allergies

Sun and bacteria to prevent asthma and allergies

Breastfeed children 6 months, do not cut them out of the sun, let them get dirty: the advice of LaNutrition to prevent allergies and asthma

Some families are more affected than others by asthma and allergies, which shows the existence of genetic factors. But the increase in allergies in recent decades in Western countries suggests a role for the environment. But it is possible, by acting on certain factors from an early age, to reduce the risk of allergies and asthma in children. Here are 3.

Monitor their vitamin D status

A new study published in the Journal of Allergy and Clinical Immunology reports that repeated episodes of vitamin D deficiency in early childhood are associated with a higher risk of asthma – but also allergies and eczema. 10 years old. It appears that vitamin D deficiency increases the risk of asthma by increasing susceptibility to 2 risk factors for the disease: allergic sensitization and severe respiratory infections.

”  We know that vitamin D plays an important role in the regulation of the immune system and in the development of healthy lungs,  ” say the authors of the study.

”  But while some studies suggest that a vitamin D deficiency may be a contributing factor to the increase in asthma in recent decades, other studies have yielded conflicting results on this association. This can be explained by environmental and genetic differences. There is also a lack of research to analyze whether vitamin D deficiency is more detrimental to certain periods of childhood  .

In this study, researchers collected vitamin D levels from birth and then regularly: at 6 months, 1 year, 2 years, 3 years, 4 years, 5 years and 10 years in 147 children at risk high asthma or allergy.

The results show that vitamin D deficiency in early childhood is associated with an increased risk of persistent asthma later. The study also shows that allergic immune responses are more common in children with low vitamin D levels in the early years, while children with vitamin D deficiency at 6 months of age were more likely to suffer from vitamin D deficiency. part of an increased colonization by harmful bacteria, upper respiratory tract and secondly severe infections of the lower respiratory tract with fever. Both of these conditions have been previously associated with an increased risk of asthma.

”  It may be that the association between vitamin D deficiency and the risk of having asthma later is explained by a modulation of susceptibility to early allergic sensitization, colonization of the upper respiratory tract by pathogens. or both,  “explain the authors.

Previous studies have shown that the first two years of life are a critical period during which allergies and respiratory infections can combine to lead to the development of asthma. ”  Our results show that vitamin D deficiency is a factor that could help this process  .”

Read: Can Vitamin D Relieve Asthma?

Trials should be conducted to ascertain whether proper vitamin D supplementation during childhood would reduce the risk of having asthma. In the meantime, children should not be out of the sun in the summer, and they should receive 400 to 1000 IU of vitamin D per day in winter depending on their age (consult a doctor).

Do not avoid contact with animals and bacteria!

A study conducted in 2016 on the Amish showed that in this community the prevalence of asthma was very low (5.2%), well below that of another community Hutterites (21.3%).

Blood samples from children aged 7 to 14 years showed that Amish children had much higher levels of immune cells that play a role in the innate immune response. Levels of endotoxin (molecules released by certain bacteria in the environment) in the dust were 6.8 times higher in their homes. What could explain the difference between Amish and Hutterite dusts is that Amish families live closer to dairy farms than in Hutterite communities and Amish children begin to go to very young stables, exposing them to animals. and micro-organisms that could then end up in the dust of houses. In Hutterite communities, children do not come into contact with animals so early. The

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