The number of people in Jersey with heart disease could increase by 75% over the next 20 years.
The forecast has been made by the government as part of its Jersey Care Model published last month, publishing plans for major health reforms in the island.
It estimates that by the year 2036, around 1,400 people will have the life-limiting condition.
Ischaemic heart diseases accounted for 10% of all deaths in Jersey in 2018.

Haut du Mont trial: Island Energy 'placed health and safety at risk'
Deportation recommended after sex-demanding attacker jailed
Teenage boy arrested on suspicion of sexual touching at Millbrook Park
Eyes up! It's Air Display day...
Haut Du Mont Trial: 'It could explode', jury hears 999 calls
Haut Du Mont Trial: Worker checking gas valves spent almost 'entire' time on his phone
Red Arrows still expected for Jersey Air Show
Haut Du Mont Trial: Gas works were 'sloppy, unsafe, and cut corners', allege prosecutors