For one thing sweet potatoes contain mostly complex carbs as opposed to simple sugars. They have a GI of 50-55 which is pretty good for a root vegetable. The sweet potato is a nutritious and economical food. One baked sweet potato (3 1/2 ounce serving) provides over 8,800 IU of vitamin A or about twice the recommended daily allowance, yet it contains only 141 calories making it valuable for the weight watcher. This provides ~40 percent of the RDA for vitamin C, 6 percent of the RDA for calcium, 10 percent of the RDA for iron, and 8 percent of the RDA for thiamine for healthy adults. It is low in sodium and is a good source of fiber and other important vitamins and minerals. A complex carbohydrate food source, it also provides beta carotene. For the most food value, choose sweet potatoes of a deep orange color.
Aside from that. the majority of succesful bodybuilders recognize the importance of good quality carbs in their diet. Sweet potatoes are natural, tasty and nutritious alternatives to gulping down dextrose or maltodextrin or other high GI sugars.
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