If you say you are the Safe Food Foundation, that means you're implying that your food is safer or that every other bit of food that we're eating is not safe. If they were a really honest foundation, they would call themselves the anti-GM foundation.

Before the 20th century, the ulcer was not a respectable disease. Doctors would say, 'You're under a lot of stress.' Nineteenth-century Europe and America had all these crazy health spas and quack treatments.

My mother was a nurse, and in her era, most diseases weren't understood; people put mustard plasters on knees and rubbed camphor on your chest if you had a cough and did funny things to you if you had tuberculosis - all these things that really made very little difference once proper treatments were brought in.

A lot of what you see in the supermarket I would argue is not really food. It's what I call edible, food-like substances.

We are safer but not totally safe.

The 20th-century ulcer epidemic was a sign of good health in American people - good diet, strong acidity and healthy immune response actually make ulcers more likely. That's why businessmen eating giant T-bone steaks were prone to ulcers.