On December 14, 2023, the U.S. Food and Drug Administration (FDA) issued Document 2023-27506, confirming that the effective date for sleep supplements magnesiumthe ferrous gluconate 125 mgdirect final rule revoking the use of parmagnesium citrate meijertially hydrogenated oils (PHOs)calcium citrate 800 mg ferrous gluconate instructionsin food is December 22, 2023, as no significant adverse comments were received during the comment period.