Dates are from the palm tree, mentioned in the Bible (Joel 1:12). The date tree was on Jewish coins. It is no wonder that dates have been found to be so beneficial.
Coffee drinking is associated with many problems (paranoia, thyroid issues, hormonal issues, adrenal crash, insomnia, iron inhibition, mercury absorption, etc.). But many of the healthy alternatives also have their own problems.
However, date seed "coffee" (made from date seeds, not coffee) does not appear to lower iron or thyroid levels, or interfere with testosterone in men, etc.
It does, however, increase serotonin levels so that it is very calming (without the depressing or stupefying effects of drugs like alcohol, marijuana, downers, etc.). Some may find it too relaxing - though it does not appear to bring drowsiness.
The date pit (unlike apricots, etc.) does not appear to have any cyanide-forming substances to any important degree.
It tastes wonderful! Let's keep an eye out for any studies that may reveal negative health effects.
Notice some great benefits already discovered:
"Chronic diseases (diabetes, cardiovascular diseases and cancer), are by far the leading causes of mortality and morbidity worldwide. Oxidative stress is one of the underlying mechanism in the development and enhancement of chronic diseases. Polyphenols are particularly abundant in date seeds and can contribute in the progress of chronic diseases due to antioxidant properties…The present work studies the effects of date seeds and examines the oxidative stress status on serum and organs of Male Wistar rats…DSP [date seed powder] decreased protein and lipid oxidative damages in the liver, muscle and brain. In addition, DSP did not alter the organs' function based on the analysis of biochemical markers. The results indicate that oxidative stress-related diseases could be possibly prevented by the DSP bioactive antioxidants…"
(Emirates Journal of Food and Agriculture, Vol. 29, no. 11, Nov. 2017)