Many people have told me they are the lightest they’ve ever been, and feel the best they’ve ever felt when they practice yoga. If you do yoga regularly with a group of people, you can watch them transform. This applies both to people who are just starting their practice, and to people who have done yoga for years, who seem to go on to ever-finer levels of beauty. It is not superficial. Rather, it is a peeling away of the meretricious constructs that cover the perfect expression of Divinity that is our true nature.

Good Yoga — Good Health — Good Life

If you practice yoga, even without focusing on weight loss, weight loss may occur if your body is carrying extra weight. An extremely thin person may gain weight. Imagine what can happen when we identify and utilize the processes that cause the body to seek its most perfect, natural physical expression? The yogic philosophy has an understanding of our bodies and the universe they inhabit that extends beyond the scope of our current popular science and medicine. We can use these insights to accelerate the realization of our our ideal form. This form is coiled inside each of us, anxiously waiting to be released.

Weight Loss Through Yoga, Jewel in the Lotus  page 162 and 163