So you need to know what foods have carbohydrate in them. Think about your food groups, like fruits. That's all carbohydrate. Those are all carbohydrate, although they're not as high a quantity as the fruits. Another food group is starch, and those all change into sugar in your bloodstream.
Starches come from many different forms.
Think of breads. Those are also a starch. Cereals, crackers, and, when you think about sweet things, those have a lot of sugar in them. Those are high in carbohydrates. So obviously, people with diabetes want to be careful about how much sugar they eat, but it's not totally restricted any longer.