As a fifth-generation cattle farmer, you might argue that Harold Brown is the last person you would imagine to become a devout vegan activist – but he’d disagree.
If anything castrating cattle and suffering a heart attack from eating too much meat and dairy as a teenager only made the decision easier.
In the past year veganism in the Western world has spiked popularity as people are taken by the health benefits and arguably cruelty-free existence the lifestyle promotes.
In 2015 the UK saw a 360 per cent spike in veganism.
This year a study by Oxford University suggested that millions of lives could be saved annually by 2050 if people adopted vegan diets.
But veganism can be culturally tough when food is key to socialising and you are surrounded by meat – as the 60-year-old from Michigan knows all too well.