Complex sentence: Furthermore, Karnal bunt of wheat poses a very low threat to human life, especially in the United States, where regulations deem wheat containing more than 3% bunted kernels unfit for human consumption and is instead used in animal feed.
Split into simpler sentences: Furthermore, Karnal bunt of wheat poses a very low threat to human life. In the United States, regulations deem wheat containing more than 3% bunted kernels unfit for human consumption and these crops are instead used in animal feed.