 Today the difference in life expectancy between Okinawan and mainland Japanese is decreasing , as the Okinawan diet changes; this is evidenced by low birth weight, poor lactation, and the fact that the life expectancy for Okinawan men is lower than the national average.
<meaning-changed>  Today the difference in life expectancy between Okinawan and mainland Japanese is decreasing , as the Okinawan diet changes; this is evidenced by low birth weight, poor lactation, and the fact that the life expectancy for Okinawan men is lower than the national average.
 Today the difference in life expectancy between Okinawan and mainland Japanese is decreasing , as the Okinawan are losing their dietary advantage. Recently, there is a decreasing trend in the life expectancy in Okinawa. This is evidenced by low birth weight, poor lactation, and the fact that the life expectancy for Okinawan men is lower than the national average.