Offshore workers have weeks to slim down or face losing their jobs.
From Sunday, workers over 124kg cannot fly to UK oil platforms.
The agency said winches cannot safely lift heavier people in emergencies.
124kg leaves room for the rescuer, a stretcher, and extra kit.
Only about 250 are still above the limit now, says the industry body.
On one platform, 60% of staff used GLP-1 jabs to slim down.
Employers fitted extra fridges to keep the jabs cool on platforms.
Firms added gym equipment and better meals on the rigs.
Between 241 and 300 workers may still fail the check on Sunday.
It says firms got no proper talks with workers before the change.
In 2025, 78% of offshore medical evacuations were health related.
What Sunday changes for every North Sea worker, in plain words.
Get the full breakdown, key numbers, and what happens next.
Read on Rive News