Diet Coke (NYSE: KO) saw falling sales this quarter, according to CNN Money, with volume dropping 6%. The CEO and chairman of Coca-Coca Muhtar Kent said in a statement that the drops are partially due to the strong value of the dollar. However, speculation about the health risks diet sodas cause in the American public are swirling, as well. Further, the once hailed No. 2 top soda in the United States was bumped down recently, and is now replaced by Pepsi. "We are pleased with our solid progress on the implementation and execution of our global strategic initiatives. Though we are still in the early stages, we see some initial positive indicators that we have the right strategies in place to accelerate growth," he said in a statement, according to CNN Money.