Professor Key, who is one of the leading specialists on diet and disease in the University of Oxford’s cancer epidemiology unit, said that nutritional science was in its formative years and so scientists did not yet have the evidence to back up many of the bold claims made about eating meat, sugar and carbohydrates caused cancer.
According to him, it was complicated to segregate the links between different food items and serious illnesses because “everything you eat is correlated with everything else you do”.He is conducting mass observations on vegetarians around 70,000 British people. Professor Key said that vegetarians in his study ate less animal protein and less saturated fat, but result of his research showed that the rates of early death compared with those of meat-eaters were exactly the same.
His research also showed the rates of bowel cancer between vegetarians and non vegetarians have no difference.“In relation to cancer and diet, the only two things that are unequivocal are obesity and alcohol, both cause cancer. There are loads and loads of studies and they are completely consistent. Once you get onto other things, meat, bacon, fiber, the data is just not clear,” states Professor Tim Key, of the University of Oxford’s cancer epidemiology unit