DEAR READERS: Currently, over 90% of corn, cotton and soybean acreage in the United States is planted with genetically engineered seeds. According to the National Institutes of Health, aflatoxin is associated with liver cancer in humans. Aflatoxin contamination is one of the most frequent cause of pet food recalls, second only to salmonella from contaminated farmed animal ingredients. Just this past October, pet food maker Sunshine Mills recalled products (mainly dog and cat kibble) containing excessive aflatoxin levels. Given without food, garlic will harm the lining of the stomach.