A recent study suggests that not eating genetically modified foods can lead to a decreased risk of type 2 diabetes and heart disease. The study based this conclusion on the fact that individuals who ate only non genetically modified foods developed these conditions at lower rates than did individuals who ate both genetically modified and not genetically modified foods and concluded that the decreased risk of both diseases must be as a result of the individuals’ dietary differences.
Which of the following, if true, would weaken the conclusion that eating only non genetically modified foods leads to a lower risk of heart disease and type 2 diabetes?
A. Genetically modified foods also tend to be organically grown, a process that uses fewer pesticides and artificial fertilizers than does conventional agriculture.
B. Type II diabetes and heart disease are often exacerbated or triggered by poor diets, especially those high in processed grain-based foods and fat-heavy meat products.
C. It is possible that some individuals could be naturally resistant to developing both type 2 diabetes and heart disease regardless of diet.
D. Other studies have examined the effects of organic food on the risk of developing both diseases, but not on the effects of genetically modified food.
E. Individuals who do not eat genetically modified foods also tend to exercise and make other healthy lifestyle choices associated with a decreased risk of both diseases.
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