Bodybuilding protein supplements and cow's milk allergy in adult
European Annals of Allergy and Clinical Immunology
We report a case of a previously healthy 24-year-old man with a 3-month history of gastrointestinal symptoms during exercise and also few minutes after the ingestion of cow's milk (CM) without exercise. He reported the ingestion of a blend of hydrolyzed whey and casein proteins for bodybuilding for the last 2 years. The in vivo tests showed positivity to CM, α-lactalbumin, β-lactoglobulin and casein extracts, and also to the protein supplement. The serum specific IgE was positive for CM,
... tive for CM, β-lactoglobulin and α-lactalbumin. The in vivo and in vitro tests results suggested an IgE-mediated CMA. Adult-onset CMA has been rarely reported, and to our knowledge this is the first case possibly related to bodybuilding supplements. The authors theorize that the presentation of large amounts of proteins in the gastrointestinal tract may favor sensitization. as a poster entitled "Adult-onset cow's milk allergy and Bodybuilding: is there a connection?". It was awarded the Poster Prize (Thematic Poster Session 54) and was published in the abstract form in Allergy 2015; 70(Suppl. S101):611; at the 36a Reunião Anual da Sociedade Portuguesa de Alergologia e Imunologia Clínica in Coimbra (Portugal) 9-11 October 2015, as a poster entitled "Alergia às proteínas do leite de vaca: uma apresentação incomum". It was awarded the 1 st Poster Prize (Poster Session IV) and was published in the abstract form in Rev Port Imunoalergologia 2015; 23(Suppl. 1):64.