Mighty Oats are a 'Force for Nature' It all started with William Lea almost 350 years ago, when mother nature provided power to turn our first mill stone. 15 generations later she's still powering our mill. Having invested in cleaner farming and food manufacturing methods, we produce positive energy for you and your planet. We are committing to this for the benefit of all, today and for future generations. Low Food Miles All of our oats are grown in Britain. We don't import any oats for our Mornflake Mighty Oats. Why would we when the UK growing conditions mean we have the best oats in the world?