McDonalds Sweet Iced Tea is a popular non-soda beverage choice at McDonalds restaurants. It comes in 4 sizes and also in an unsweetened version. There originally was 69 grams of sugar in a 32-ounce sweet tea, which has more sugar than 2 1/2 snickers candy bars. McDonalds has since lowered this to 38 grams per 32 fl oz.