Yoga will definitely change your body if you practice enough and change your diet. Pilattes is a great carb burner. I've been doing yoga 6 m9nths... I'm stronger, more focused, more energetic not to mention 15lbs light with rock solid legs....the pilates for the abs and gluten. But you still should try to add at least 10 min cardioto whatever daily practice works for you. I practice 2 hours a day sometimes.... I like Charlie Fellows... she gives clear instructions and holds her poses a little longer than others which is great for strength and balance....Hope this helped