>> high protein diets and how they can lead to a very painful health problem. stay tuned for a warning from doctors. >> later, hours away from team usa taking on belgium. if you didn't know it. at the world cup. all the excitement with millions tuning in today. you are watching "world news now." ♪ >> announcer: "world news now" weather brought to you by colonial penn life insurance. >> announcer: "world news now" weather brought to you by colonial penn life insurance.