Cook safely around allergies, intolerances, and lifestyle restrictions — gluten-free, lactose-free, nut/egg/fish/shellfish/soy allergies, vegetarian/vegan, halal-style pork-free adaptation, and low-FODMAP basics. Use whenever the user or a guest "can't eat X", mentions an allergy or intolerance, asks to veganize/de-glutenize a recipe, or plans food for mixed-restriction groups.