Cola by citric or other isolated acids. Coca-Cola's recipe is maintained as a corporate trade secret. A variety of different sweeteners may be added to cola, often partly dependent on local agricultural policy. High-fructose corn syrup (HFCS) is predominantly used in the United States and Canada due to the lower cost of government-subsidized corn. In Europe, however, HFCS is subject to production quotas designed to encourage the production of sugar; sugar is thus typically used to sweeten sodas. In addition, stevia or an artificial sweetener may be used; "sugar-free" or "diet" colas typically contain artificial sweeteners only. In the 1940s, Coca-Cola
Auvergnat Cola production and reduced profit margins. He was convinced that this type of product is only viable as an adjunct to an existing enterprise, where it can be added to the existing structure of the business and economies of scale be realised by that means. The idea of Auvergnat Cola came to him when he was on holiday in Corsica and was drinking the local Corsica Cola. (Other pre-existing regional colas in France included Breizh Cola in Brittany, Fada Cola in Marseille and Chtilà Cola, since renamed Ch'nord Cola, in Nord-Pas-de-Calais, and Meuh Cola in Normandy, Montania Cola in Chambéry and