Detroit, MI – Many Michigan residents woke up sick on Black Friday after large Thanksgiving meals, and state health officials say food-poisoning risks tied to undercooked turkey and improperly stored leftovers may be contributing to a rise in stomach illness reports.

According to the Michigan Department of Health and Human Services, the day after Thanksgiving consistently brings more cases of nausea, stomach cramps, diarrhea, and fatigue. While heavy meals can cause discomfort, experts say improperly cooked turkey and food left out for long periods are among the primary sources of post-holiday illness across the state.

Large turkeys are especially challenging to cook evenly. The thickest areas—deep in the breast and thigh—often heat slowly and may not reach the required 165°F internal temperature, even when the exterior appears done. Many families remove the turkey early to keep it moist, unintentionally increasing exposure to bacteria such as Salmonella and Campylobacter, both frequently associated with undercooked poultry.

Improper leftover handling adds to the risk. Michigan’s Thanksgiving buffets, potluck gatherings, and extended family meals often leave food sitting at room temperature for hours. Once dishes stay in the “danger zone” between 40°F and 140°F for more than two hours, bacteria multiply quickly. Organisms such as Staphylococcus aureus and Bacillus cereus, both linked to food left out too long, can cause sudden vomiting and stomach discomfort.

Nutrition specialists recommend discarding questionable leftovers, reheating food thoroughly to 165°F, and staying hydrated if symptoms appear. Severe vomiting, dehydration, high fever, or symptoms lasting longer than 24 hours should be evaluated by a medical professional.

ADDITIONAL SAFETY TIPS

✓ Check leftovers: Discard anything left out for more than 2 hours.
✓ Reheat properly: Heat all leftovers to 165°F before eating.
✓ Watch for symptoms: Sudden nausea, cramps, or diarrhea may indicate bacterial illness.
✓ Cook turkey fully: Verify temperature at the thickest parts of the bird.
✓ Seek care when needed: High fever, dehydration, or blood in stool warrant medical attention.