Nutri-Grain breakfast bars from Kellogg's have become the official snack of British Swimming and will be seen at all the major events on the British Swimming calendar through the remainder of 2010.

Cassie Patten, Olympic bronze medallist, open water swimming, said: "As a professional swimmer, my training regime means I have to have to breakfast twice in the morning - once when I get up at 5am and then again after training at 9am. And, that's why Nutri-Grain works for me."

One of the largest cereal snacks brand in the UK, and worth more than £30m in annual sales, Nutri-Grain is available in six flavours, has only 133 calories per bar and is made of oats and wheat, fortified with vitamins and iron.