 Breakfast porridges are made from milled grains and are commonly eaten worldwide. Traditionally different grains are used in different countries. For example, oats are more common in the Anglo-Saxon countries; rye is favoured in the Scandinavian countries whilst millet is very common in parts of India and Africa. However the nutritional value and potential metabolic and health effects may vary dramatically between different grains. For example what is the effect of the different grains on blood sugar or on how fast the stomach empties after eating the porridge and how full people feel. All these physiological responses may differ between these grains resulting in potential health benefits. 