are fat loss and weight loss the same ?

Weight loss and fat loss are not the same thing. The scale can be misleading if it’s
the only way you measure your progress, because the scale doesn’t tell you the
difference between fat weight and muscle weight. For example, a woman could
weigh 110 pounds but have 33 percent body fat. That’s what you call a “skinny
fat person.” On the other hand, a well-trained female athlete could weigh 150
pounds and be very lean, with 16 percent body fat. That’s what you call “solid
muscle.”
What matters most is your ratio of muscle to fat—your body composition.
With this distinction in mind, losing weight should not be your only goal. Your
main focus should be burning the fat and keeping the muscle. As long as your
body is mostly muscle, then you shouldn’t worry so much about your total body
weight. Burn the Fat, Feed the Muscle will teach you how to measure your body
fat and use body composition to track your progress. You’ll learn how to get
results as fast as possible, but you’ll also be reminded that there’s a world of
difference between rapid weight loss and permanent fat loss.