COFFEE ---- DOSAGE

Caffeine: How much is too much?

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.

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.

Caffeine stimulates the loss of Calcium through the urine. A study showed that drinking more than two cups of average brewed coffee or four cups of average brewed tea per day can increase Calcium loss which may lead to Osteoporosis. So, it is advisable to lessen the caffeine intake.

Completely avoid caffeine if hot flashes seem to be triggered by it. Try substituting non-caffeinated teas or decaffeinated coffee for caffeinated beverages.

Excess caffeine also causes the kidneys to excrete more Calcium, a factor in bone thinning in postmenopausal women.

However, in a latest survey maintain that kidney function is influenced by too much coffee or caffeine intake. It could lead to some problems for example diuresis, detrusor instability and kidney stones.