1. Some foods, for example those high in protein, may be more prone to causing food poisoning. We all know, eggs are a rich source of protein, however, cooked egg or boiled egg can cause serious harm when exposed to heat again and again. Once you have cooked eggs, eat them immediately but if it is kept for a longer period, don't reheat, rather just eat cold because high protein food contains lot of nitrogen. This nitrogen may get oxidised due to reheating, further causing cancer.
2. Rice You may be surprised, but rice comes under this category too. According to Foods Standards Agency (FSA), you could suffer from food poisoning by eating reheated rice. This is due to the presence of highly resistant bacteria called Bacillus Cereus. Heat kills these bacteria, but it can produce spores that are toxic in nature. Once rice is reheated and is left out at room temperature, any spores it contains can multiply, further causing food poisoning on consumption.