# The Feeding Stuffs Regulations 1991, Part D—: VITAMINS AND TRACE ELEMENTS


Analytical constituents
Limits of variation (absolute value in percentage by weight, except where otherwise specified)
Cobalt
± 50% of the amount stated
Copper
± 30% of the amount stated for declarations above 200mg/kg
± 50% of the amount stated for declarations up to and including 200mg/kg
Iodine
± 50% of the amount stated
Iron
± 30% of the amount stated for declarations of 250mg/kg or more
± 50% of the amount stated for declarations less than 250mg/kg
Manganese
± 50% of the amount stated
Molybdenum
± 50% of the amount stated
Selenium
± 50% of the amount stated
Vitamins D2 and D3
± 30% of the amount stated for declarations above 4000IU/kg
± 50% of the amount stated for declarations up to and including 4000IU/kg
Vitamins other than D2 and D3
In case of deficiency—
30% of the amount stated
Zinc
± 50% of the amount stated

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Source: https://www.legislation.gov.uk/uksi/1991/2840/schedule/3/part/D (the official version)
Page: https://openlegislation.uk/feeding-stuffs-regulations-1991/schedule-3/part-D
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.