Mechanism
Calcium, magnesium, iron, and zinc chelate tetracyclines and fluoroquinolones in the gut → form insoluble complexes → antibiotic is not absorbed → treatment fails.
Recommendation
Take antibiotic 2h before or 4-6h after dairy or mineral supplements. This interaction can cause complete antibiotic failure — a common cause of "treatment-resistant" infections.
⚠️ Foods to Watch/Manage
milkyogurtcheesecalcium-supplementantacidsiron-supplementzinc-supplement