What is caffeine?
Caffeine is a bitter substance that occurs naturally in more than 60 plants including:
- Coffee beans
- Tea leaves
- Kola nuts, which are used to flavor soft drink colas
- Cacao pods, which are used to make chocolate products
There is also synthetic (man-made) caffeine, which is added to some medicines, foods, and drinks. For example, some pain relievers, cold medicines, and over-the-counter medicines for alertness contain synthetic caffeine. So do energy drinks and "energy-boosting" gums and snacks.
- Caffeine (National Library of Medicine)What is caffeine? Caffeine is a bitter substance that occurs naturally in more than 60 plants including: Coffee beans Tea leaves Kola nuts, ... chocolate products There is also synthetic (man-made) caffeine, which is added to some medicines, foods, and ...
- Caffeine is a substance that is found in certain plants. It can also be man-made and ... Caffeine is absorbed and passes quickly into the brain. It does not collect in the bloodstream or ...
- Acetaminophen, butalbital, and caffeine is used to relieve tension headaches. Acetaminophen is in a class of medications called analgesics (pain relievers). It works ...
- The combination of ergotamine and caffeine is used to prevent and treat migraine headaches. Ergotamine is in a class of medications called ergot alkaloids. It works together ...
- Caffeine is a substance that exists naturally in certain plants. It can also be man-made and ... is a diuretic, which means it increases urination. Caffeine overdose occurs when someone takes in more than ...
- Spilling the Beans: How Much Caffeine is Too Much? (Food and Drug Administration)Caffeine/Start Here ... Caffeine ... Food and Drug Administration ... Caffeine can be part of a healthy diet for most people, but too much caffeine may pose a danger ...
- Caffeine (For Parents) (Nemours Foundation)Child Nutrition/Specifics ... Child Nutrition ... Caffeine/Children ... Caffeine ... Nemours Foundation ... caffeine, too much caffeine, drinking too much caffeine, caffeinated ...
- The combination of aspirin, butalbital, and caffeine comes as a capsule and tablet to take by mouth. It usually is taken every 4 hours as needed. Follow the directions ...
- Caffeine: How Does It Affect Blood Pressure? (Mayo Foundation for Medical Education and Research)Caffeine/Related Issues ... Caffeine ... How to Prevent High Blood Pressure/Related Issues ... How to Prevent High Blood Pressure ... Mayo Foundation for Medical Education ...
- Effects of Mixing Alcohol and Caffeine (Centers for Disease Control and Prevention)How mixing caffeine and alcohol can increase health risks and ways to prevent these harms.