Brown sugar has a deep, caramel, or toffee-like flavor due to the added molasses. For this reason, it works well in chocolate cakes and cookies, as well as rich fruit cakes. On the other hand, white sugar is sweeter, so you can use less of it to attain your desired taste. Given that brown sugar is rich in minerals such as iron, copper, and phosphorus, it is incredibly beneficial for those dealing with mineral deficiencies. It is also particularly helpful for pregnant women suffering from gestational anemia. Quality Brown sugar contains slightly more minerals than refined white sugar, but only because it contains molasses. Brown sugar contains 95 percent sucrose and 5 percent molasses, which adds flavor and moistness but has no great nutritional benefits over white sugar.