New research introduces the concept of «aeronutrients»—nutrients absorbed through breathing. Studies reveal that substances like iodine, zinc, and even vitamins can enter the bloodstream via air. For instance, schoolchildren living near seaweed-rich coasts showed higher iodine levels without dietary changes, suggesting airborne absorption. Our lungs, capable of absorbing larger molecules than our gut, play a key role. Research from the 1960s noted that laundry workers exposed to iodine-rich air had elevated iodine levels. Similarly, aerosolized vitamin B12 has been proven effective for deficiencies, especially in vegans and older adults. While much remains unknown, exploring aeronutrients could transform our understanding of nutrition. Future studies may even recommend breathing in nature as part of a balanced diet.
