4.—(1) Milk must contain a total fat content which does not exceed 1.8 grams per 100 millilitres.
(2) Milk drinks and drinking yoghurts must contain–
(a)a total fat content which does not exceed 1.8 grams per 100 millilitres; and
(b)a total sugars content which does not exceed 10 grams per 100 millilitres provided that the total sugars content does not exceed 20 grams per portion.