NEW YORK — An engaged couple took on one of MrBeast's most demanding challenges yet, losing a combined 150 pounds in 163 days to win $250,000 before walking down the aisle in an emotional finale to the YouTube star's latest weight-loss video.

The video follows Sara and Tre, who were given a simple but difficult goal: lose 150 pounds between them before their wedding day. If they succeeded, they would receive $250,000.

To help them focus entirely on their health, the couple moved into a specially built home and training facility for the duration of the challenge.

The couple trained with iFIT trainers John Peel and Bree Cox and received medical guidance from health testing company Function Health, which tracked their biomarkers throughout the process.

The setup gave Sara and Tre access to structured workouts, nutrition support and regular health monitoring as they worked toward their goal.

The couple made rapid progress early on. After 30 days, they had lost a combined 43 pounds.

By day 90, their combined weight loss had reached 107 pounds, putting them well on pace to reach their target.

By the end of the 163-day challenge, they had surpassed........

© International Business Times