Is iron bad for stumic flu?

If you already have: Stomach flu the iron might make things worse. Iron supplements can cause constipation; diarrhea; nausea & adbdominal pain.Start with clear liquid like water, soda that is clear, or sports hydration drinks. Sip often to prevent dehydration. Work up to solids with bland foods like bananas, rice, applesauce, toast, gelatin, or chicken. Avoid alcohol, nicotine, caffeine, dairy & high fat foods. Rest.