It's not that "sugar" is bad for you. It's about what it eventually turns into in the body. When you eat a breakfast that by many standards would be considered healthy, such as a bowl of oatmeal, a piece of whole-grain toast, an apple, and some orange juice- every bit of that meal is going to turn right into blood glucose. It will cause a massive insulin spike which is going to drive fat storage while ensuring a glycolytic metabolism. Doing this often will eventually cause problems like weight gain, and with that comes the issues of atherosclerosis, cardiovascular disease, diabetes, etc.
It's also about context; if glycogen stores in the liver and muscle are depleted (say, from a fast) and you work out, you break down those muscles which then seriously need glycogen to rebuild. So you can and should eat a bunch of "sugar" after a workout, as it is likely to go straight to your muscles without being stored as fat.
An apple, or a similar amount of sugar in a candy bar; the only difference lies in what's in addition to the sugar. Obviously, as a health-conscious individual, you would want the apple. It is unprocessed, contains fiber, other vitamins, and is delicious. A candy bar contains nothing else of any benefit, and is highly processed. When it comes to fat loss, however, they are virtually the same thing; one sugar is not better than the other. It's still going to turn into blood glucose and spike your insulin levels.
Last edited by bdilla; 08-30-2012 at 11:56 AM.
this great blue world of ours seems a house of leaves, moments before the wind