"The U.S. Food and Drug Administration has determined that while the formula containing these beetles poses no immediate health risk, there is a possibility that infants who consume formula containing the beetles or their larvae could experience symptoms of gastrointestinal discomfort and refusal to eat," Abbott said. The recalled products involve powdered Similac in plastic containers, and in 8-ounce, 12.4-ounce and 12.9-ounce cans. Other Abbott factories will step up production of powdered and liquid forms of Similac to help meet consumer demand for infant formula until the Michigan plant resumes production. Abbott, which said it has had no major product recalls in recent years, estimated that third-quarter company revenue will be reduced by about $100 million due to sales returns. Abbott, which has annual sales of about $35 billion, reaffirmed its quarterly and full-year profit forecasts.