Originally Posted by UD2.0

Just remember the following: insulin inhibits fat mobilization and the catecholamines (generally) increase it. Insulin always wins the battle. So when insulin is high and the catecholamines are low, fat tends to be stored. When insulin is low and the catecholamines are high, fat will be mobilized. A bit simplistic? Perhaps. But good enough for the time being.

The real take home message is that, from a fat mobilization standpoint, we want low insulin and high catecholamine levels. Both can be readily accomplished by altering diet (lowering carbohydrates and calories) and exercise (which increases catecholamines).