Pepsi says it's getting serious about cutting sugar from its drinks.The global food giant said on Monday that two-thirds of its single serving drinks will have 100 or fewer calories from added sugar by 2025.PepsiCo -- which also owns brands including Gatorade and Tropicana -- said the change was driven by shifting consumer needs and new dietary guidelines from the World Health Organization.Many customers have tapered their intake of high-sugar, high-calorie soft drinks from Pepsi and Coca-Cola due to worries about sugar consumption.Read more on NewsOK.com