caliore is the unit of measuring energy.
As a dietitian, I tell my clients that about half of their daily intake should come from carbohydrates. So, if you're eating 2500 calories/day, then 250 grams should be carbohydrate. However, it is also important to keep in mind what type of carbohydrates you're eating. Choosing whole grain products (i.e. 100% whole wheat) such as cereals, breads and pastas, brown rice, nuts, seeds, legumes, veggies and fruits is just as important. Higher fiber carbohydrates can also be beneficial. Limiting refined carbohydrates such as junk foods, pastries, cookies, cakes, chips, soft drinks, and candy is a great way to promote better health!