Paragraph 5
(1)
Any material may contain any added vitamin (not being vitamin A, D2 or D3) or any pro-vitamin or chemically well defined substance having a similar effect.
(2)
No material may contain any added vitamin A, D2 or D3 unless—
(a)
the material is for a species or category of animal listed opposite the vitamin in question in column 3 of Part IV;
(b)
taking into account any such vitamin as is naturally present, the maximum content (if any) specified in relation thereto in column 4 of that Part is not exceeded; and
(c)
the material complies with the conditions (if any) specified in relation thereto in column 5 of that Part.