Science >> Biology for Kids. Muscles are how we move and live. All movement in the body is controlled by muscles. Some muscles work without us thinking, like our heart beating, while other muscles are controlled by our thoughts and allow us to do stuff and move around. There are over 650 muscles in the human body.
Send Feedback. Caffeine Free Coke is the same in every way to Coca-Cola classic except it contains no caffeine. There is also caffeine free versions Diet Coke and Coke Zero for those that love the taste of Coke, but don't want the caffeine.
Caffeine is the other draw to these waistline-friendly beverages. Diet Coke contains 46.5 mg of caffeine per can. Drinking more than 500 to 600 mg of caffeine a day (about four to seven cups of coffee or ten cans of Diet Coke), can cause restlessness, anxiety and headaches.Caffeine also acts as a diuretic, which makes Diet Coke potentially dehydrating.urrently, the acceptable daily intake for aspartame is set at 50 mg/kg body weight in the United States, the equivalent of about 20 cans of Diet Coke a day for an adult weighing 165 pounds! (There are 180 mg of aspartame in a 12 oz can of diet soda).