Using diet sodas or sugar-sweetened regular sodas may increase risk of leukemia in men, but not in women, according to a new study published on Oct 24, 2012 in American Journal of Clinical Nutrition. Diet soda often uses aspartame, an artificial sweetener that has been linked to leukemia in animal studies.
Additionally, a 41 percent increased risk of leukemia was found in men and women who used one serving of diet soda per day, compared to those who did not use diet soda.
Bottom line: avoid the sodas. Not only they are nutrients-poor, but they potentially contribute to diseases.