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Russian fitness coach dies of heart failure in sleep doing 10,000 calorie-a-day diet to gain 25kg
He wanted to show how easily the weight could be shed.
December 04, 2025, 10:41 AM
A Russian fitness trainer has reportedly died of a heart failure after an extreme 10,000 calorie-a-day diet.
According to The Daily Mail, citing Russian media, Dmitry Nuyanzin died of a heart failure in his sleep.
Nuyanzin was attempting to quickly gain 25kg, before showing how easily he could lose the weight.
To achieve this rapid weight gain, he would binge on fast food, snacks, and desserts.
His diet included pizza, burgers, pastries, and dumplings smothered in mayonnaise for lunch.
He would also snack on chips throughout the day.
On Nov. 18, he posted an Instagram update showing his weight had gone up to 105kg.
Screenshot from Dmitryfit/IG
In a video posted earlier on Sep. 15, he showed a weighing machine reading of 88.2kg.
A health expert NDTV spoke to said the issue with these types of extremely high caloric diets consisting of fast food was not only the high caloric intake, but more so the "extreme overload of fat, salt, and volume".
Image from Dmitryfit/IG
