This week’s Ask a Scienceblogger: “Is severely regulating your diet for a month each year, as Muslims do during Ramadan, good for you?”
I’d say that’s nearly impossible to answer: there are too many other factors at work. But consider this:
Kuwait’s average life expectancy is 76.9
Portugal’s is 77.2
Since Kuwait is a primarily Muslim country and Portugal is primarily Christian, it appears observing Ramadan doesn’t have much of an effect on life expectancy. The two countries are similar economically, with both countries registering nearly equal GDP per capita ($18,047 for Kuwait versus $18,126 for Portugal).