Sweet potato is very rich in beta-carotene (pro vitamin A), particularly in more yellow varieties. Their fat and protein content is minimal.
Sweet potato is quite digestible; it contains an appreciable amount of cellulose type of fiber.
Sweet potatoes protects against obesity. It is certainly a starch-rich food, with a good deal of calories. The sweet potato aids the obese in reducing caloric intake by producing a full sensation in the stomach and reducing appetite. It is necessary to eat sweet potatoes in controlled amounts so as not to exceed the daily recommended daily caloric intake.
Sweet potatoes are almost lacking in saturated fats and sodium. These are the two most pernicious enemies of the circulatory system. Regular sweet potato consumption is recommended in cases of arteriosclerosis, lack of adequate blood flow and hypertension.