Pregnancy and Eating Disorders: A Complete UK Guide
Eating disorders can emerge, return or intensify during pregnancy. The physical changes, weight gain, loss of control over your body and focus on nutrition can all be triggering. With the right support, women with current or past eating disorders can have healthy pregnancies and recover fully.
Types of eating disorder in pregnancy
- Anorexia nervosa — restricting food, intense fear of weight gain, distorted body image
- Bulimia nervosa — cycles of bingeing and purging (vomiting, laxatives, over-exercise)
- BED (binge eating disorder) — recurrent episodes of eating large amounts with distress and loss of control
- OSFED — other specified feeding or eating disorders, including atypical patterns
- Disordered eating — not meeting full diagnostic criteria but causing distress and risk
A history of an eating disorder, even if recovered, increases the chance of relapse during pregnancy.
Why pregnancy is a trigger
Pregnancy demands weight gain, regular eating and loss of control over a changing body shape. Antenatal focus on weight, scans, and well-meaning comments about size can intensify body image distress. Nausea and vomiting can be misused or confused with disorder symptoms.
Risks of untreated eating disorders
- Higher rates of miscarriage, premature birth and low birth weight
- Inadequate nutrition for foetal development
- Increased risk of gestational diabetes and complications
- Mental health deterioration — depression and anxiety
- Postnatal relapse and difficulty bonding
These risks are reduced significantly with good antenatal care and mental health support.
Talking to your maternity team
Be honest with your midwife and GP. Tell them about any current or past eating disorder. They are not there to judge — they are there to keep you and your baby safe. With this information they can:
- Arrange more frequent monitoring of weight, growth and nutrition
- Refer you to a perinatal mental health team
- Coordinate care with a dietitian
- Plan for the postnatal period, when relapse risk is highest
NHS support pathways
- GP and midwife — first contact and ongoing monitoring
- Perinatal Mental Health Services — specialist support for moderate to severe eating disorders
- Talking therapies — CBT-E (enhanced CBT) is the NICE-recommended treatment for eating disorders
- Specialist eating disorder services — for severe cases, coordinated with maternity care
- Dietetic support — safe, non-judgemental nutritional guidance for pregnancy
Body image and the changing body
It is normal to find pregnancy body changes difficult, especially with an eating disorder history. Strategies that help:
- Limit body-checking and mirror use
- Unfollow triggering social media
- Focus on what your body is doing — growing a baby
- Wear comfortable clothes that fit your changing shape
- Speak kindly to yourself, as you would to a friend
After birth
The postnatal period is a high-risk time for relapse. Pressure to "lose the baby weight", sleep deprivation and new demands can all contribute. Stay in touch with your mental health team, accept help, and prioritise regular eating.
For partners and supporters
Avoid commenting on weight or shape. Support regular meals, attend appointments, and watch for warning signs — secrecy around food, excessive exercise, withdrawing, or relapse behaviours.
When to seek urgent help
If you cannot eat enough to stay safe, are purging frequently, feel hopeless, or have thoughts of self-harm, contact your GP, 111 or local crisis team urgently. Eating disorders in pregnancy are treatable and deserve prompt, compassionate care.
Hope
With honest communication and the right support, women with eating disorders can have healthy pregnancies and recover. You deserve care, not judgement.
This guide is informational and not a substitute for individualised NHS care.