If you need to take iron, you should consider avoiding caffeine at mealtimes. People who suffer from panic attacks should avoid large amounts of caffeine as it can trigger nervousness and anxiety. Death from a caffeine overdose is very rare. You would have to inject at least 3,000 mg of caffeine or swallow more than 5,000 mg. However, much lower doses of caffeine can cause death in children.
Caffeine can be useful in treating some types of headaches, including migraines.
Your doctor can tell you if caffeine would be a good way for you to get rid of a headache. Caffeine should not be used for dieting as it will not suppress your appetite. Caffeine does not help drunk people to sober up. Women should consider limiting or eliminating caffeine intake while pregnant. As your body gets used to caffeine, it needs more and more of it to get the same effect.