If you accidentally eat mold, you will probably be okay, as long as you are relatively healthy and do not have a mold allergy. Your digestive and immune systems should be able to take care of it, and any vomiting or nausea you might experience would be more likely to happen because of your personal disgust. However, in certain cases, the mold found on spoiled food could be dangerous, so if you suddenly develop symptoms such as shortness of breath, nausea, an elevated temperature, or diarrhea, you should immediately seek medical help. Allergic reactions can be delayed or they can be right away, depending on what kind of mold it was. Some molds can actually be very toxic to human beings, cause allergic reactions, and respiratory problems. If you can visibly see mold on food, it is best to throw it out, as there is no way of knowing by sight whether a mold is safe or harmful. The only exceptions are long-lasting hard cheeses, cured meats, and certain fruits and vegetables, which can potentially be salvaged by cutting away the affected spot at least one inch around the mold.