"I am Board certified in Obesity Medicine and wrote a book
on the subject of weight loss maintenance.
The real challenge is to maintain weight loss.
You can't outrun your fork long term after a 10% weight loss
due to billions of excess fat cells that do not go away after weight loss
even due to bariatric surgery.
These adipocytes are shrunken with low leptin levels.
I called this the Sponge syndrome.
The first way Leptin prevents starvation is by decreasing metabolism.
This decreases metabolism during exercise by 38%.
It also reduces resting metabolism which is 70% of bodies metabolism
that exercise does not affect.
The second part of Leptin's effect
is to stimulate release of Ghrelin (the hunger hormone).
To maintain weight loss the key is to stay on 1500 calories for the rest of your life.
This how people in the National Weight Control Registry accomplish it.
Diet drugs fool the brain to decrease the hunger.
Just as hypertension pills are taken for life,
diet pills need to be taken for life in the reduced obese.
My book: The Chronic Disease of Obesity published Feb 2018
discusses the above Sponge Syndrome in detail and
how to treat it with multiple diets medication.
Exercise is for health not to maintain weight loss.
As Gretchen Reynolds book on Exercise states: 20 minute walk a day
is best bang for buck for health.
Gina Kolata in Re-thinking Thin wrote about the false hope of diet and exercise."
A daily twenty-minute walk is great, but is not what I would define as serious exercise. Certainly not, "best bang for buck for health."
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