When a person says she wants to lose five or ten pounds, it’s understood that she means five pounds of fat, not five pounds of muscle, bone mass, or body water. But when the typical dieter loses five or ten pounds, barely half of that weight is fat. The other half is, in fact, muscle, bone mass, and body water.
Losing weight is not as good as losing fat. If you lose five or ten pounds of mixed fat mass and lean body mass, your health, appearance, and endurance performance will not improve as much as they will if you lose an equal amount of pure fat.
Here are some tips to ensure that any and all weight you lose in pursuit of your ideal racing weight is body fat.”