I have been drinking diet pop for quite awhile and I have quit several times. The big problem that I have is that I have extremely low blood pressure or hypotension. Generally it runs about 65/70. The last time I quit pop, I had a series of scary incidents where my BP dropped out and I fainted. The sodium and caffeine in the soda are what keep my blood pressure somewhat normalized. So while it might cause other problems, I will continue to drink it until they find another way to up my BP.