About 1 pint (480 mL) of blood is taken when you donate. It takes about 10 minutes. The whole process-including answering questions and having a short exam-takes up to an hour. Donated blood is tested to make sure that it is safe to use.
Soda is an unhealthy beverage because it's high in calories and sugar but low in vitamins and minerals. Coca-Cola is one example of a type of soda that's sugary and packed with calories, but Coke Zero is one alternative that is sugar-free.
Coke Zero contains 34 milligrams of caffeine per 12 ounce serving. In comparison, an 8-ounce cup of brewed coffee contains 108 milligrams of caffeine.n addition, they both contain caffeine and between 1 to 4 calories per can -- anything under 5 calories does not need to be reported on nutrition label -- and are fat-free, protein-free, and carb-free. Both Coke Zero -- and Diet Coke -- contain caffeine, unless you buy the caffeine-free version of the beverage.