The main source of carbohydrates is plants. Most plant bodies contain 50-80% of their dry weight as carbohydrates. Major carbohydrate producing plants are – rice, wheat, sugarcane, bhutra, barley, cow, sugar, beet, carrot, date, grape, apple, mango, banana etc. Roots, stems, leaves, fruits and seeds of plants contain carbohydrates. Carbohydrates are found in guava, apple, onion, mango, pineapple, lichen, moss etc. Animal liver, muscle and milk contain carbohydrates.