work for reducing obesity.
If interested, read Dr. Jason Fung's book, The Obesity Code, for a run down on how often that has been tried and studied and failed miserably every single time.
https://www.amazon.com/Obesity-Code-Unlocking-Secrets-Weight/dp/1771641258/ref=sr_1_2
You can probably also pick it up at your local library, though ours has a long wait list.
There are plenty of other books on it showing the same thing as well.
fwiw, Dr. Jason Fung has a ton of interviews, talks and other videos on the net that are pretty good. Weight loss and reversing Type II diabetes are his specialty.