Decaffeinated coffee has it the virtues of raw coffee?

In other words, we must determine whether:
1) Caffeine contributes to the beneficial effects of coffee.
2) The extraction of caffeine destroys other beneficial components.
The answer is no to the first question, caffeine has certain virtues, but not essential to health and longevity, and no also to the second, extraction when made with a good process does not remove other useful components.
So we can replace coffee with decaffeinated coffee and expect the same contribution to health.

Caffeine maintains vigilance. If we take coffee to avoid to sleep or to wake up, raw coffee is the best and Robusta is the stronger. Instead if we take several cafes in the day, for fun or for its qualities, decaf is what is needed.

A study by the American Journal of Clinical Nutrition published in December 2012, claims that regular coffee consumption reduces the risk of type 2 diabetes by 8% in women regardless of the amount of caffeine. In men by 4% for regular coffee and 7% for the decaffeinated. In this case the latter is more effective...

The decaffeination process

It operates by washing the whole green beans again and again many times. The addition of a solvent or carbon dioxide makes the operation more efficient while preserving the flavors and other compounds.
It is difficult to know which solution was used in a product so you have to trust the producers ... and buy good brands.

Suppose that the most effective method is used. Carbon dioxide (CO2) crosses the grains under the effect of pressure and temperature above 31 degrees. He dissolves the caffeine that is loaded into CO2. Water at high pressure then recover the caffeine. Other compounds are little or not affected.

There will still be between 5 and 10% caffeine remaining in the grain.

The effects of caffeine on metabolism

Are attributed to caffeine the following useful effects:

• Stimulating, maintains alertness.
• Mild diuretic.
• Improves slightly endurance and physical performance.
• Reduces blood pressure.
• Reduces the risk of Parkinson's disease in men (and not in women). But it is an effect created primarily by tannins in coffee, which are antioxidants.

And the following negative effects:

• Exciting, strains the heart.
• In excess it causes headaches because of the dilation of blood vessels in the brain.
• It also causes anxiety and sleep disorders, in excess.
• Bad for pregnant women from 200 mg or two cups.
• Toxic to animals.