Despite recent claims that coffee has some beneficial health effects, longstanding evidence shows that it does more harm than good, particularly in larger amounts. Most of the talk of coffee is centered on caffeine, but there is more to coffee than just caffeine.
Consider that coffee is highly acidic, and high acidity in the body over time is linked with many degenerative health ailments. Furthermore, coffee acts as a diuretic and dehydrates the body, tending to cause headaches and other problems. Chronic dehydration can affect health negatively in many ways, including premature aging of the skin and extra stress on the elimination system. And of course, in our age of toxin bombardment, anything that makes it more difficult for your body to detoxify itself is a bad idea.
Drinking coffee has been shown to deplete vital vitamins and minerals, including vitamins B and C, calcium, zinc and iron (anemia). Coffee also seems to relax the sphincter muscle of the esophagus, tending to exacerbate heartburn problems. Those with rosacea and ulcers are particularly advised to avoid coffee, as it worsens these conditions. High coffee consumption is also linked to higher incidence of PMS symptoms, osteoporosis, increased miscarriages, more difficulty conceiving in women with fertility problems, and a variety of other unpleasant maladies.