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Vegans, Vegetables, and Strokes By Mrs Vera West
Wow, this is something I found hard to believe, but in the interests of truth, I report:
“People who eat vegan and vegetarian diets have a lower risk of heart disease and a higher risk of stroke, a major study suggests. They had 10 fewer cases of heart disease and three more strokes per 1,000 people compared with the meat-eaters. The research, published in the British Medical Journal, looked at 48,000 people for up to 18 years. However, it cannot prove whether the effect is down to their diet or some other aspect of their lifestyle. Diet experts said, whatever people's dietary choice, eating a wide range of foods was best for their health. What does this study add? It analyses data from the EPIC-Oxford study, a major long-term research project looking at diet and health. Half of participants, recruited between 1993 and 2001, were meat-eaters, just over 16,000 vegetarian or vegan, with 7,500 who described themselves as pescatarian (fish-eating). They were asked about their diets, when they joined the study and again in 2010. Medical history, smoking and physical activity were taken into account, Altogether, there were 2,820 cases of coronary heart disease (CHD) and 1,072 cases of stroke - including 300 haemorrhagic strokes, which happen when a weakened blood vessel bursts and bleeds into the brain. The pescatarians were found to have a 13% lower risk of CHD than the meat-eaters, while the vegetarians and vegans had a 22% lower risk. But those on plant-based diets had a 20% higher risk of stroke. The researchers suggested this could be linked to low vitamin B12 levels but said more studies were needed to investigate the connection. It is also possible that the association may have nothing to do with people's diets and may just reflect other differences in the lives of people who do not eat meat.”
So, there you have it, vegans and vegetarians may have a greater cardio vascular risk that someone else, we don’t know who, and nor do we know what other factors are involved, without adequate controls. This is interesting since it is an example of a health article where explaining the study leads to its refutation.