Can you drink decaffeinated coffee

Not really. If you are sensitive to caffeine, then perhaps. However, moderate consumption of caffeine has been shown to have beneficial effects: It improves reaction time, increases alertness, reduces effects of fatigue, improves endurance and can also improve accuracy in a number of tasks. Some studies have suggested that long-term consumption of caffeine can reduce the risk of Parkinson's disease. Obviously, if caffeine is raising your blood pressure, making you irritable or unable to sleep, then switching to decaf would be a wise choice. Otherwise, though, there's little harm in a cup of regular coffee in the morning to perk you up. In addition, caffeine is implicated in contributing to osteoporosis. In this case, decaffeinated beverages are very important.