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AII-1000-40251
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Man hospitalized after AI-generated weight loss plan causes organ failure

A 34-year-old Chengdu man used an AI tool to create a weight loss plan with extreme exercise and caloric restriction that resulted in 40 pounds lost in 45 days. He was hospitalized with life-threatening sepsis and multi-organ failure after completing his workout while ill; doctors found the AI plan lacked personalization and could not account for his exhausted immune system.

February 2026 Β· Chen (34-year-old male) Β· Safety and wellbeing
February 2026
AII-1000-40251
Quick facts
Category
Safety and wellbeing
Country
China
Date
February 2026
Drafted by
Raidu Incident Detection

What happened

A 34-year-old self-media worker in Chengdu used an AI tool to generate a weight loss plan that included 1.5 hours of stair climbing daily and badminton 2 times per week for 2-3 hours, with minimal nutrition intake of two eggs and half a steamed bun for breakfast, 75g beef and 75g vegetables for lunch, and a single yogurt for dinner.

Within 45 days, the man lost 40 pounds. In February 2026, while having a cold, he completed his planned workout, then developed high fever, body aches, weakness and urinary symptoms overnight, and was taken to hospital in a comatose state.

Reported impact

The man was diagnosed with urosepsis, septic shock, and multi-organ dysfunction syndrome (MODS), a condition with 30-50% mortality rate. He required intensive resuscitation, vasopressor medications, and multidisciplinary intervention to control infection.

According to medical staff at Chengdu First People's Hospital, the AI plan created an extreme caloric deficit and unsustainable exercise load that exhausted the immune system, and when combined with the stress of a cold, triggered severe sepsis and organ failure.

Index analysis

Doctors noted that the AI tool could only calculate theoretical caloric deficits and could not adjust for individual body state, pre-existing conditions, or fatigue levels. The plan did not account for the cumulative effect of long-term sleep deprivation, irregular diet history, and overtraining.

Governance controls

Medical staff warned that AI-generated fitness plans are theoretical data that cannot sense actual human fatigue or organ stress limits, and that continuing high-intensity exercise while ill can be fatal.

Classification

Category
Safety and wellbeing
Industry
Healthcare, drugs and biotechnology
Country
China
Harm status
Actual harm
Intent
Unintentional
Timing
Post-deployment
Harm types
Human or fundamental rights, Physical injury
Harmed
Consumers
Failure modes
Overreliance, Unsafe recommendation
AI systems
Weight loss AI tool

Sources and evidence

Sources not yet published

This record was researched and written by the Index from original reporting. Its sources are still being verified by an editor, and they are listed here once that check is complete. Until then the record carries no reviewer.

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