Induction is induction, period. It introduces you and your body to the initial process of low-carbing.

How sustainable is the whole process of fat loss based on Induction?

You now have less fat, but have missed all the finer points and experience you gain with OWL, and then becoming familiar and comfortable with the process of Maintenance.

OWL and Maintenance IMHO, are the cornerstone upon which the success and solid future of your well being lies. Without them, you have fat loss without knowing how to be thin in your new world.

That could be the harm with doing Induction all the way.

Karen