Diet for juvenile arthritis
Children with JIA need a balanced, age-appropriate diet that supports growth, bone health, and immune function. Calcium and vitamin D are particularly important during steroid treatment.
Foods to favour
- Calcium-rich foods (dairy or fortified alternatives) every day
- Oily fish for omega-3s and vitamin D
- Variety of fruit and vegetables
- Wholegrains and pulses
- Lean protein for growth and muscle development
Foods to limit
- Sugary drinks and ultra-processed snacks
- Excess fast food
- Foods that personally trigger flares
This is general information, not a substitute for personalised medical advice.
Frequently asked questions
What is the best diet for juvenile arthritis?
A Mediterranean-style anti-inflammatory diet is the most evidence-backed eating pattern for juvenile arthritis. It emphasises vegetables, fruit, wholegrains, pulses, oily fish, olive oil, nuts and seeds, with limited ultra-processed food and sugar.
What foods should I avoid with jia?
Limit ultra-processed foods, sugary drinks, excess alcohol, and large amounts of red or processed meat. Many people also notice individual triggers — a short food diary can help you spot them.
Can diet reduce juvenile arthritis inflammation?
Yes — an anti-inflammatory eating pattern, combined with maintaining a healthy weight, has been shown to reduce joint pain and inflammatory markers in juvenile arthritis. Diet works best alongside exercise and any prescribed medication.
Do supplements help with jia?
Evidence is mixed. Omega-3 fish oil, vitamin D (where deficient), and turmeric/curcumin have the most supportive research for jia. Speak to your GP or pharmacist before starting supplements, especially if you take other medication.
Is there a single food that triggers juvenile arthritis flares?
No single food causes juvenile arthritis, but ultra-processed foods, excess sugar, and (for gout in particular) high-purine foods and alcohol can worsen symptoms. Focus on overall pattern rather than individual "miracle" or "forbidden" foods.