So instead listening to my doctor, I should follow the advice of a Belgian entrepreneur with no medical training, based on his experiment with a sample size of one.
I'm sorry, but this is something a non-overweight person would say.
I've been overweight my whole life. I talked to my doctor. One said (yes he literally said this) Follow the SELAP diet. When I asked what he meant he said "Stop Eating Like a Pig". That was his advice. Another doctor said to get surgery.
I finally found another doctor that helped. He put me on a 1,000 calorie a day diet. Tons of people told me it was unhealthy, but I lost weight - 50 lbs. The information out there for dieting is so bad. I had people tell me that if I ate 1,000 calories a day, I would gain weight because of a slow metabolism. These were "professional" people. I've never heard of people who stop eating in food strikes in prisons get to the point where they weighed so much they can't leave their cell!
Unfortunately I couldn't keep that extremely low calorie diet up for the long term and when trying to increase it, I've now gained 25 of it back but it's been a year so I consider it somewhat of a success.
I'm glad to read about something that works for someone. The doctors you mention are pretty clueless in my opinion.
I'm 4'11, so really short and overweight. I tried to keep to the 1200 calories that everyone says is the minimum, but I can't, it's often too much food for me and never really saw much in weight loss. I've been trying to go closer to 600-1000 and have seen much more results and feel healthier.
You'll note that this isn't presented as a medical study. It's presented exactly as you describe it - an experiment with a sample size of one.
No one is telling you to follow this advice. This is one guy saying "Hey, here's something that worked for me when I had this problem. Maybe if you have the same problem, it might work for you."
You are entirely free to ignore it. You should consider using that freedom.