Health3 min(s) read
A 30-year-old fitness influencer died during an extreme weight loss challenge that involved eating 10,000 calories a day.
Dmitry Nuyanzin launched the regimen to promote his new fitness course by rapid weight gain followed by dramatic shedding. He consumed nearly four times the recommended 2,500 daily calorie intake for men.
The fitness personality built an audience of over 43,000 Instagram followers. Per The Daily Star, he pledged to pay $100 to anyone weighing over 220lbs who lost 10 percent of their body weight by New Year's Eve. Over one month, his weight grew from 202lbs to 231lbs as he ate fast food, pastries, and heavy meals.
Launching the challenge toward the end of the year, Dmitry told his followers: "Friends! My WEIGHT LOSS COURSE is starting very soon, where you can win awesome prizes and, most importantly, build a beautiful body, learn how to eat well, and enjoy working out! I'll be losing weight with my students, so it'll be doubly exciting!"
Dmitry documented his daily meals while residing in the Russian city of Orenburg. In one social media post, he detailed his routine: "I am currently gaining weight for my weight-loss course, and this is my 10,000-calorie diet.
"For breakfast, I have a plate of pastries and half a cake. For lunch, I usually eat 800 grams of dumplings with mayonnaise. During the day, I may snack on crisps, and for dinner, I have a burger and two small pizzas, either at a café or delivered."
In his final Instagram post uploaded in 2025, he shared a picture of himself holding a bag of chips with the caption: "I wanted it, and I got it!"
Shortly after calling off gym appointments and reporting that he felt unwell, Dmitry suffered a fatal cardiac arrest during his sleep.
The Ostorozhno Novosti channel reported his death just over a month into his project. He was buried in Orenburg, leaving behind social media followers who shared condolences online.
One user noted: "It is better to prove such theories not in practice. Rest in peace." Another commented: "It's true. If you're not used to junky fries, fast food, it will indeed make you sick."
A third stated: "Well, if ever there was a cautionary tale, then this has to be it."
The British Heart Foundation notes that carrying excess weight creates serious risks. According to their website: "It can lead to fatty material building up in your arteries (atherosclerosis), increase your risk of high blood pressure, high cholesterol and type 2 diabetes. These are also risk factors for heart disease.
"If the arteries supplying blood to your heart become damaged and blocked, it could result in a heart attack. If this occurs in the arteries supplying blood to your brain, it could lead to a stroke or vascular dementia."
Dmitry graduated from the Orenburg Olympic Reserve School and the National Fitness University in St. Petersburg.
He trained high-profile clients in Russia during his fitness career. He was married with no children, and an official cause of death has not been released.
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