Here’s one way to watch your weight drop:

Last week, a floor collapsed beneath a group of about 20 members of Weight Watchers as they gathered to compare how many pounds they had shed over Christmas.

Members of the weight-loss club were lining up to compare readings on the scales when they heard a bang as the floor came away from the walls of their meeting room in Växjö in southern Sweden.

“We almost thought it was an earthquake,” said one of those present.

No one was injured in the incident, the cause of which is being investigated.

Thankfully, the scales were not damaged and the weigh-in continued in a nearby corridor.