Salt Lake City, UT – Many Utah residents woke up sick on Black Friday after large Thanksgiving meals, and state health officials say food-poisoning risks linked to undercooked turkey and improperly handled leftovers may be driving a statewide rise in stomach illness reports.
According to the Utah Department of Health and Human Services, the day after Thanksgiving often brings increases in nausea, stomach cramps, diarrhea, and fatigue. While heavy holiday eating can play a role, experts say improperly cooked poultry and foods left out for hours remain the most common causes of post-holiday illness across Utah.
Large turkeys are particularly challenging to cook thoroughly. The thickest parts of the bird—deep in the breast and thigh—can heat unevenly and may not reach the required 165°F internal temperature even when the exterior looks fully cooked. Utah families aiming to avoid a dry turkey sometimes remove it early, unintentionally raising the risk of bacteria such as Salmonella and Campylobacter, both strongly associated with undercooked poultry.
Improper leftover handling is another major cause of post-Thanksgiving illness. Utah’s buffet-style gatherings, potlucks, and long family visits often leave food sitting out at room temperature. After more than two hours in the “danger zone” between 40°F and 140°F, bacteria multiply rapidly. Common culprits include Staphylococcus aureus and Bacillus cereus, organisms tied to food left out too long that can trigger sudden vomiting and stomach discomfort.
Nutrition specialists recommend discarding questionable leftovers, reheating all dishes to 165°F, and staying hydrated if symptoms develop. Severe vomiting, dehydration, high fever, or illness lasting beyond 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: Warm 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.





