For most people, moderate doses of caffeine — 200 to 300 milligrams (mg), or about two to three cups of brewed coffee a day — aren't harmful. But some circumstances, such as caffeine sensitivity or use of certain medications, may warrant limiting or even ending your caffeine routine. Find out if you need to decaffeinate your diet and, if so, how you can do it with minimal distress.
When to cut caffeine use - Certain circumstances call for reducing the amount of caffeine you consume. Evaluate your habits. If any of these situations apply, you may need to cut back. You consume unhealthy amounts. Though moderate caffeine intake isn't likely to cause harm, too much can noticeably affect your health. Heavy daily caffeine use — more than 500 to 600 mg a day, or about four to seven cups of coffee — can cause:
Nausea, diarrhea or other gastrointestinal problems
Abnormal heart rhythms
History of caffeine use. People who don't regularly consume caffeine tend to be more susceptible to its negative effects than are people who do.
The best way to break this cycle is to limit your caffeine and to add more hours of quality sleep to your day. Also, avoid caffeinated beverages eight hours before your desired bedtime. Your body doesn't store caffeine, but it does take many hours for it to eliminate the stimulant and its effects.
Caffeine can be habit-forming, so any attempts to stop or lessen the amount you normally consume can be challenging. An abrupt decrease in caffeine can cause withdrawal symptoms, such as headaches, fatigue, irritability and nervousness. These symptoms usually resolve after several days.