Per 100 grams of white rice: about 116 kcal and 25.9 grams of carbohydrates.

Per 100 grams of mixed grain rice: about 140 kcal and 30.4 kcal of carbohydrates.

Per 100 grams of white bread: about 223 kcal, about 47 grams of carbohydrates.

Per 100 grams of oats: about 338 kcal, about 77.4 grams of carbohydrates.

Oats:

Oats is a kind of whole grain food, scientifically known as oats (Avenasativa). 1997 U.S. FDA recognized oats as efficacious food, with the efficacy of lowering cholesterol and stabilizing blood sugar. The U.S. "Time" magazine selected, the world's top ten health food "in the oats ranked fifth, is the only list of cereals."