| Overview: | Fermentation-produced chymosin (FPC), a GM enzyme used in ~90% of cheeses, is deemed safe by regulators (FDA, EFSA) but may cause issues for certain individuals: |
| Allergies/Sensitization: | Low risk of allergic reactions, especially in pollen-allergic people due to protein sequence similarities; possible cross-reactivity triggering rashes, respiratory, or gut issues. |
| Digestive Problems: | Residual enzyme or GM impurities may irritate the gut, causing bloating/gas in sensitive people (e.g., IBS, low stomach acid). |
| GMO Concerns: | Potential microbiome disruption, inflammation, or long-term effects from production biotoxins—speculative, with limited long-term studies. |
| Most Affected: | Allergy-prone, gut-sensitive, or anti-GMO individuals. More likely in cheeses. |