In the November 30, 2016, Federal Register, FDA amended the regulations for food additives permitted in feed and drinking water of animals to provide for the safe use of guanidinoacetic acid as a substance that spares arginine and serves as a precursor of creatine in broiler chicken and turkey feeds. This action is in response to a food additive petition filed by Alzchem AG. The rule was effective November 30, 2016, and objections and requests are due December 30, 2016.
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