Aflatoxin is widely distributed and may be present in any food contaminated with aflatoxin. Aflatoxin often contaminates cereals and oils and their products, such as rice, wheat, oats, corn, peanuts, sesame seeds and soybeans, with peanuts and corn being the most susceptible to contamination, while peanuts contain high levels of aflatoxin in peanut kernels, peanut flour, peanut butter and peanut kernels, and have the greatest chance of poisoning. corn, including corn flour, corn cobs, and some broken corn kernels and some manufactured corn products, may contain high levels of aflatoxin.