Originally Answered: I've suddenly began drinking diet soda? I've always hated all soda! How can this impact my health?
Diet drinks have been around for decades, and few studies have shown adverse affects of non-sugar, or artificial sugar drinks.
The problem of increased diseases/sicknesses from diet drinks could, if any, be explained by people who have diabetis, or other health problems, being obese, these may drink more diet drinks.
The issue, is, if you are in good health, do you want to put on weight, or loose it? More sugar = more calories, Diet drinks = less calories.
Some studies, however, show that when you drink non-sugar drinks, you body may CRAVE sugar, it's sort of addictive, like chocolate.
So, by switching to diet drinks, be careful not to increase your intake of say donuts, ice-cream, sugar gum, or candies loaded with sugar too.
Good luck, I prefer diet Pepsi, or diet Dr. Pepper, as these almost taste like sugared drinks.