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Most people see a documentary about the meat industry and then they become a vegetarian for a week.

I think vegetarianism is a crucial ethical choice for an individual and a society.

My take is that the optimal approach to food, for health and ethical reasons, may be vegetarianism.

Meat is a wasteful use of water and creates a lot of greenhouse gases. It puts enormous pressure on the world's resources. A vegetarian diet is better.

It's the 21st century. It's healthier for us, better for the environment and certainly kinder to be a vegetarian.

I've been more or less vegetarian for about 40 years. Health diet really helps. I do meditation every day, and either yoga or sport several times a week.

I've been vegetarian for virtually all of my adult life, and I do adopt a very strict health regime.

I grew up on an organic farm in England. And I was a vegetarian from an early age - not just for health, not for the environment - just because I didn't believe in killing animals to eat them.

Veganism is an answer for almost every problem facing the world in terms of hunger and climate change.