(8)Subject to Council Directive 90/496/EEC of 24 September 1990 on nutrition labelling for foodstuffs(7), the addition of vitamins to the products defined by this Directive is permitted in some Member States. However, the extension of this possibility to the whole of the Community is not envisaged. Therefore, Member States are free to authorise or prohibit the addition of vitamins and also minerals as part of the manufacturing process. In all circumstances, however, the principle of the free movement of products within the Community should be observed in accordance with the rules and principles laid down in the Treaty.