Whether we have a name for there greatest person in historythere's bound to be one who holds the weight record. This person is Jon Brower Minnoch !
Its maximum weight was 635 Kgwhich has earned it this title. In this blog post, we're going to take you through :
- Who is Jon Brower Minnoch and what is his story?
- Has no one been able to exceed this weight so far?
- Which woman is the heaviest in the world?
Here we go!
Jon Brower Minnoch, in figures
🗓 Born in 1941, died in 1983 (age 41)
⚖️ Maximum weight weight : 635 kg
📉 Minimum weight reached weight : 215 kg
📊 Maximum BMI : 185,5
🏥 Documented weight loss 419 kg (record at the time)
🇺🇸 Nationality American
Jon Brower Minnoch: the all-time human weight record!
That person is none other than Jon Brower Minnoch. Born in 1941 and died in 1983, he remains engraved in the Guinness World Records as the most massif ever recorded by medicine.
Yet the life of this American, the world's heaviest man, is also marked by weight loss remarkable. His maximum weight reached 635 kg, and he came down to a low of 215 kg after intensive medical monitoring.
What is the story of Jon Brower Minnoch?
This man's story is marked by a never-ending struggle. At the age of 12, he already weighed 133 kg. With his weight, hehe has battled obesity all his life and has been hospitalized many times.
His problems, too linked to eating disorders, resulted from a complex interconnection between physiological, genetic, and environmental factors.
Despite its incredible efforts, including the time he adopted a a balanced diet of 1,200 calories per day and ended up weighing 215 kg when discharged from hospital, it wasn't long before he was readmitted, after an accelerated weight gain.
An exceptional BMI
Hospitalized on several occasions, Jon's situation reached its peak around the age of 35, with severe respiratory problems.
His body mass index (BMI) at the time was 185,5, illustrating the seriousness of his condition. To wit’BMI of a healthy person is between 18.5 and 24.9.
What the doctors discovered went beyond obesity alone. Jon Brower Minnoch was also suffering from a massive generalized edema, a pathological water retention which swelled his body considerably.
It is precisely this phenomenon that explains why he was able to lose 419 kg in hospital under strict medical supervision. A large part of this loss corresponded to the evacuation of water accumulated in his tissues.
This weight loss has long been a record, since surpassed by Khalid bin Mohsen Shaari.
A sad end
Jon Brower Minnoch died at the age of 41 due to a cardiac arrest related to his morbid obesity. The exact causes of her disease remain unknown: hormonal factors, eating habits and lifestyle have never been fully documented.
His short but tragic life has left a deep impression on how society perceives eating disorders and obesity, as well as on the medical world.
He was married with two sons, John and Jason.
Who is the heaviest woman in the world?
Now that you know who theman who holds the weight record In history, are you curious to find out who is the heaviest woman in the world?
Carol Ann Yager, born in 1960 in the United States, was admitted to hospital weighing 1,189 lbs (539 kg).
Her precise weight could never be measured, due to the lack of suitable lifting equipment. Her companion estimated her peak at around 1,600 lbs (approx. 727 kg), but this figure was never medically validated.
The reason for his obesity
According to Carol Yager herself, her eating disorder has its origins in childhood abuse.
Some American tabloids have also mentioned childhood night fears as a triggering factor, but this information has never been confirmed by any serious medical or biographical source.
Health problems
Unfortunately, because of her obesity, Carol Yager had also suffered from other health problems related to:
- Regarding the breathing difficulties,
- High blood sugar levels high,
- A stress of his heart and other organs.
Carol appeared on ‘The Jerry Springer Show”. Afterwards, many people took the opportunity to promote their slimming methods.
The world's heaviest woman lived most of her life in Michigan, USA, and died on July 18, 1994.
Other documented extreme cases
The history of people of extraordinary mass is not limited to Jon, even if no one has officially exceeded his 635 kg. To date, no person in medical history has officially reached or surpassed this record.
Nevertheless, here are some other documented extreme cases that came close to this figure:
- Saudi Arabia's Khalid bin Mohsen Shaari with 610 kg
- Mexico's Manuel Uribe with 597 kg
- Mexico's Juan Pedro Franco with 595 kg
- American Carol Yager with 539 kg (peak unconfirmed estimate of around 727 kg)
This list is by no means exhaustive, but here's a sample video featuring the 10 fattest people in the world:
Explanatory video in French by Alucare, ideal complement to the page. View video (you can use YouTube's automatic translation)
Most obese people didn't choose to be the way they are, and losing weight is never easy, whether you're ill or not.
The key is to know taking care of your body and of setting limits as for what we eat every day. In fact, if you want to stay in good shape, discover the best treadmills for weight loss !
FAQs
How much weight has Jon Brower Minnoch lost?
Under intensive medical supervision, Jon Brower Minnoch went from 635 kg to 215 kg, a loss of 419 kg, This was a record at the time, since surpassed by Khalid bin Mohsen Shaari.
Why has its weight never been weighed directly on a scale?
No medical scale could lift it.
Her weight was estimated from measurements of the amount of water retained by her body during hospitalizations. The same problem arose for Carol Yager, whose peak weight could never be accurately measured.
What was the real cause of his extreme obesity?
Beyond eating disorders, Jon Brower Minnoch was suffering from a massive generalized edema, a pathological water retention which contributed to its extreme weight.
This also explains why he was able to lose 419 kg in hospital. A large part of this loss corresponded to the evacuation of accumulated water.
Who is the heaviest person still alive today?
Guinness has not actively tracked this title since 2018, so as not to encourage extreme obesity. The last officially recognized holder was Mexico's Juan Pedro Franco (595 kg in 2017), who passed away in December 2025. No successor has been appointed since.
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