Carbohydrates are needed for primary source of energy. List of carbohydrates foods , foods which contains complex carbohydrates are bran , oats,pasta,cornmeals, peas, muesli,yam, beans,lentils,oatmeals,maize, barely,wholegrains,brownrice.food which contains simple carbohydrates are table sugar, candy,corn syrup,fruit juice,cake,white flour,all types of chocolate , candies, pastries.