If you dry fruit at home and eat it immediately, then dried fruit is fine. However, if you buy it off the shelf, then you may run into problems, the first of which is sugar. Sugar is added to dried fruit to make it taste better. Over time, as natural fructose breaks down, dried fruit loses its flavor. The other problem with dried fruit in the store is that sulfur, in the form of sulfur dioxide, is often added to prevent it from browning. Sulfur dioxide is one type of sulfite and research is suggesting that people with asthma, allergies, and other breathing problems may be easily affected by sulfite. This sensitivity has led to speculation that the additive is not good for any of us, even though it only shows immediate effects in those with a lung condition.