The following foods should be avoided while you’re sick because they can be difficult for your body to process and may slow down recovery: * Milk and other dairy products such as yogurt, cream, and cheese * Fried and fatty foods such as french fries, onion rings, chicken fried steak, and fatty cuts of beef and pork * Protein such as steak, pork, salmon, and sardines * Raw veggies, especially broccoli, cauliflower, greens, and carrots * Acidic fruits such as citrus, pineapple, tomatoes, and apples * Alcohol * Beverages with caffeine such as coffee, tea, and soda * Very hot and very cold drinks