Turns out that a vegan diet is the one mostly likely to contain natural antioxidants and minerals that neutralize waste products like lactic acid.

FORBES: In Praise Of (Mostly) Vegan Diets

The peak of her green interest was in the late 80s - a time of bubbling media coverage of acid rain, climate, waste and rainforest destruction.

BBC: Margaret Thatcher: How PM legitimised green concerns

Meat is a dead matter, low in minerals, and produces uric acid in excess which is a waste product.

FORBES: Does genetically modified corn cause cancer? A flawed study fails to convince.