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A higher level of the mineral selenium in the blood is now linked to a decreased risk of colorectal cancer.
Researchers conducted a pooled analysis--a study in which information collected from three previous randomized trials is assessed together--on the effects of various nutritional interventions for colorectal cancer prevention. All of the study participants formerly had undergone a colonoscopy in which an adenoma--a benign growth--was removed.
Analysis of the pooled data found that individuals with blood selenium values in the ...