Coffee as a preventative health measure
More and more scientific studies confirm that coffee can prevent certain diseases
Recent studies have shown that coffee can act as a deterrent against the risk of contracting certain diseases.
For example, a Japanese study conducted on 27 healthy adults has proven that drinking a cup of coffee can significantly improve blood flow in the small vessels. The participants, after one cup of coffee, showed a 30% increase in blood flow with respect to those who drank decaffeinated coffee. Caffeine raised the blood pressure of the participants, improving their vascular function.
Drinking 3-4 cups of coffee a day has been associated with a reduction of approximately 25% in the risk of developing type 2 diabetes, compared to consuming none or fewer than 2 cups of coffee a day. The protective effect of the coffee is apparently not due to caffeine, since another study associated a low risk of type 2 diabetes with decaffeinated as well, but rather to the elements in the beverage.
Coffee consumption may also be beneficial in preventing cancer: in particular, it may reduce the risk of hepatocellular carcinoma by approximately 40%, the most common type of liver cancer, and the risk of endometrial cancer (the epithelium of the uterus lining).
Eight prospective studies show a 7% protective factor for every cup of coffee drunk. Similar results were found for decaffeinated coffee, which contains many bioactive compounds and antioxidants, and which may help prevent cancer.
A recent Italian study shows that coffee can reduce the risk of melanoma by almost 50%, if consumed daily.
Finally, the old belief that caffeine could cause a loss of bone mass is found to be erroneous: a prospective Swedish study, based on more than 3,800 hip fractures in postmenopausal women, showed an absence of relationship to the risk of fractures and with the risk of osteoporosis, even in the presence of a reduction of bone mass of 2-4%.