A 2025 pooled cohort study involving 5,306 children from Australia, the U.S., and Canada, published in Journal of Exposure Science & Environmental Epidemiology, found that exposure to plastic-derived chemicals before age 5—such as phthalates and BPA—was linked to significantly higher rates of asthma and wheezing in childhood.

A 2025 study in Frontiers in Nutrition by Wen et al. found that low handgrip strength (HGS) and low relative handgrip strength (RHGS) were strongly linked to increased odds and risk of asthma—by up to 50% for those at the lowest quartile of grip strength.

A 2025 report from EAACI and EMJ highlights that kids with atopic (allergic) asthma are significantly more likely to have sensory-processing issues like trouble tuning out noise or handling light, or even touch.

A 2020 study in the British Journal of Nutrition found that drinking unpasteurised milk increases levels of Lactobacillus in the gut—beneficial bacteria that support digestion and immune health. Two studies in The Journal of Allergy and Clinical Immunology (2011 & 2015) linked raw milk to a significantly reduced risk of asthma, allergies, and respiratory infections in children.