Caffeine%20Overuse - Caffeine How much is too much In less...

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Caffeine: How much is too much? In less than an hour you start to feel caffeine's effects. You're more alert, energetic and productive. Your mood lifts and that foggy, tired feeling is gone. If you rely on daily doses of caffeine to chase away fatigue and perk up your disposition, you aren't alone. Nine out of 10 Americans consume some type of caffeine regularly, making it the most popular behavior-altering drug. 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: Restlessness Anxiety Irritability Muscle tremors Sleeplessness Headaches Nausea, diarrhea or other gastrointestinal problems Abnormal heart rhythms You have caffeine sensitivity If you're susceptible to the caffeine's effects, just small amounts — even one cup of coffee or tea — may prompt unwanted results, such as anxiety, restlessness and irritability. The more sensitive you are to caffeine, the less you need to
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This note was uploaded on 08/08/2009 for the course BIOL 202 taught by Professor Y during the Spring '09 term at McGill.

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Caffeine%20Overuse - Caffeine How much is too much In less...

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