If your body needs the starch from white potatoes, well, it also needs the potassium coming from sweet potatoes. After a hard day at the gym, the muscles in your body will contract and your skin’s collagen also needs replenishment. The sweet potatoes can very well do all that.
It is very low in calories with 3 grams of fiber a bit of protein. As for Vitamin A, it contains almost three times of your daily recommended allowance. All you need to eat is 100 grams of it and you’re good to go.