More than 240 people had inpatient admissions in acute hospitals due to eating disorders last year.
The vast majority related to anorexia, with children the most-affected group.
The HSE says 189,000 Irish people will experience an eating disorder at some point in their lives.
Research shows this is rising, particularly among adolescents.
The HSE says anorexia has the highest death rate of all mental health disorders.
241 people had an inpatient admission in an acute hospital last year due to an eating disorder - with 88% being female.
189 of the admissions were down to anorexia, eight were due to bulimia and the remaining 44 were other eating disorders.
133 of the admissions related to children.
The HSE says it aims to establish 16 community-based eating disorder teams across the country to deal with the problem.
If you have been affected by anything similar contact your GP or the Eating Disorders Association of Ireland Bodywhys.