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This study covered a long period: 16 years, and on a large number of subjects, 137,130 people, in 21 different countries. By studying their consumption of grains (whole and refined), the researchers found that those who ate a lot of modified grains were 27% more likely to die early. The risk of stroke would even increase by 47%, just ahead of the risk of cardiovascular disease (+ 27%).
It’s all a question of quantity
Where can you find refined grains? Modified cereals are present in industrial doughs, pastries, pastries or even in white bread. This does not mean that you should stop consuming it at all. Note that the increased risk of death is only observed in the group of subjects whose consumption exceeded 350 grams per day.
The study also points out that the results may be influenced by other factors, especially the consumption of other foods unfavorable to cardiovascular health -sugar, fats- and which generally accompanies that of processed cereals.
To remember : this is an observational study, which as its name suggests “observes” (but does not provide formal proof) of a link between the consumption of large quantities of refined cereals and the cardiovascular risk and death. Other elements that can also increase these risks, in particular an overall unbalanced diet in people who consume these cereals in large quantities. Either way, this study supports the current discourse: prefer whole grains and consume refined ones in moderate quantities.
Source : Associations of cereal grains intake with cardiovascular disease and mortality across 21 countries in Prospective Urban and Rural Epidemiology study: prospective cohort study, British Medical Journal, February 3, 2021.
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