Shocking Findings From ‘The Biggest Loser’ Contestants

Shocking Findings From ‘The Biggest Loser’ Contestants

A nutrition scientist found that the reality show’s contestants’ metabolisms slowed after participating—and didn’t recover.

It was an unusual laboratory for a metabolism and weight loss study: a sprawling ranch, the former home of the Gillette razor-blade tycoon, nestled in the dusty green Santa Monica Mountains near Malibu, California.

A group of people milled about a hallway in the ranch’s white, Spanish Colonial-style mansion early one morning before breakfast— and they were not exactly chipper. Six weeks into season eight of the reality TV program The Biggest Loser, the contestants were tired.

Author's summary: Research on The Biggest Loser contestants revealed slowed metabolisms.

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Science Friday Science Friday — 2025-10-14

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