Adults should consume 45 to 65 percent of their total calories as carbohydrates, according to Mayo Clinic. For an adult consuming 2000 calories daily, 900 to 1300 calories should come from carbohydrates, or 225 to 335 grams in total.
Mayo Clinic states that people should get most of their daily carbohydrates from fruits, vegetables, whole grains, beans and legumes. Adults should minimize their intake of refined sugar products, including sugary beverages, desserts and processed foods. Individuals with a health condition like heart disease, diabetes or high blood pressure should consult a medical professional to determine the ideal amount of daily carbohydrates.