The latest edition of The Gluten-Free Brief covers major new celiac research, undiagnosed case estimates from Ireland, Québec, and the UK, gluten-related recalls in Canada, a U.S. court ruling on gluten-free meals, and formulation changes affecting Peanut M&M’s in New Zealand.
Antibiotics do not cause celiac disease.
A large new study challenges earlier smaller studies that suggested a link. An analysis of 28,000 patients and 133,000+ controls found antibiotics were likely not the cause of celiac disease.
Source: CGH, May 2026
Celiac organizations warn: Majority of cases remain undiagnosed.
Ireland: ~78,000 people may still be unidentified, Québec: up to 90% of expected cases may be undiagnosed, UK: ~500,000 may be undiagnosed.
Source: Coeliac Society of Ireland / Cœliaque Québec / Coeliac UK
Scientists mapped how gluten triggers immune attacks in celiac disease.
A new review identifies the TG2 enzyme as a key driver of inflammation — and a promising target for future celiac therapies.
Source: Genes (MDPI), May 2026
Several gluten-related recalls hit Canada recently.
They included a Costco gluten-free pizza kit recalled for mould and Salem Foods spice blends recalled across Canada after undeclared wheat was discovered.
Source: CFIA / Costco
A U.S. court says gluten-free meals are not just a courtesy.
An appeals court revived claims against a Maryland retirement community over gluten-contaminated meals served to a celiac resident.
Source: U.S. 4th Circuit Court of Appeals, 2026
Peanut M&M’s changed in New Zealand.
Mars NZ said recipe and sourcing changes for the product added barley malt extract, with wheat cross-contact also declared.
Source: RNZ / Mars NZ
Informational news roundup; no endorsement implied. This blog post is for educational purposes only and does not replace medical advice from your own healthcare team.
Previous editions of The Gluten-Free Brief can be found here and on our social media channels.
