The day before the test, it is not permitted to eat: milk or dairy products, cereals, bread, biscuits, toast, rusks or pancakes, pastry products, sweets or chewing gum, jams, pulses, potatoes, vegetables, fruit and fruit juice, dried fruit and nuts and processed cold meats (cooked ham, turkey, mortadella, fuet, salami...). It is also recommended to avoid alcohol, tobacco and carbonated water.