Due to start in early 2026, it will be the first dedicated service of its kind in the region.
The first phase of the new service will take a community-based approach, offering lifestyle support and where appropriate, obesity medication.
Currently patients don’t have access to specialist weight management services, including weight loss injections and medications.
The Department of Health said “rollout will be carefully managed in a phased manner to ensure that treatment is provided in a safe and effective manner.”
Additional phases of the Regional Obesity Management Service (ROMS), including other interventions such as weight loss surgery, are planned subject to funding.
Health Minister Mike Nesbitt has given the go-ahead for a new Regional Obesity Management Service for Northern Ireland.
News Catch Up – Wednesday 21 May
Announcing the new service, Mr Nesbitt said it “is a very significant step forward.”
He added: ”I have many competing demands on a seriously overstretched budget but I was determined to prioritise this area.
“Obesity is a significant public health issue in Northern Ireland, with 65% of adults and 26% of children living with obesity or overweight.
“Those living with being overweight or obese are at a higher risk of a range of major health conditions including heart disease, stroke, type 2 diabetes and some cancers.
“As I have repeatedly emphasised, my ambition is to shift our health’s service focus from treating ill people to helping them stay healthy.”
Mr Nesbitt said tackling health inequalities is one of his key priorities in office, adding that obesity continues to be more common in the most disadvantaged communities.
“Establishing a Regional Obesity Management Service will also bring us into line with other parts of the UK,” said the UUP leader.
“It will be a phased introduction and will take time and sustained investment to be fully established.
“Implementation will be taken forward in a carefully managed way to ensure that it operates effectively, with patient numbers building up gradually.”
A public consultation launched by the Department of Health in November 2023, received just under 19,000 responses, the majority of which supported the introduction of the service.