Bariatric surgery is a very effective treatment in the short term, but with an enormous risk of nasty complications. You can get the effect of bariatric surgery without the side effects (and the cost of a surgeon) for free by changing your dietary protocol.

References

Eenfeldt, Dr. Andreas, MD. “Get the Effect of Bariatric Surgery Without the Side Effects, Without the Surgeon, For Free,” Diet Doctor (November 27, 2016). https://www.dietdoctor.com/get-the-effect-of-bariatric-surgery-without-the-side-effects-without-the-surgeon-for-free (accessed on 8/2/2020).