×
London | Manchester | Bedford
Open Mon-Sat 9-6pm

Are Tomatoes Bad for Arthritis? Evidence, Diet, & Expert Advice

Author: Mr Oliver Eaton BSc (Hons), PG.Cert – Orthopaedic Specialist
Reviewed by: Mr William Sharples BSc (Hons) – Pain Management Expert
Last Updated: September 2025

In this article, you will learn everything you need about tomatoes’ effect on arthritis and the most effective ways to treat arthritis, including an advanced treatment called prolotherapy.

Introduction

Tomatoes are a staple in many diets, but if you have arthritis, you may have heard that tomatoes can make your symptoms worse. Is there any truth to this claim? This article explores the evidence behind tomatoes and arthritis, offers practical dietary advice, and highlights advanced treatment options like Prolotherapy for lasting relief.

Tomatoes and Arthritis: Myth or Fact?

a woman holding her knee because she has arthritis.

The idea that tomatoes are “bad” for arthritis is a common belief, especially among people with inflammatory types of arthritis like rheumatoid arthritis or gout. Tomatoes belong to the nightshade family (Solanaceae), which also includes potatoes, peppers, and aubergines. Some claim that nightshades can worsen joint pain and inflammation.

But is this supported by science? Let’s look at the evidence.

What Does the Science Say?

Current research does not support the idea that tomatoes cause or worsen arthritis for most people. In fact, tomatoes are rich in antioxidants, vitamins C and A, and lycopene—a compound with anti-inflammatory properties (Arthritis Foundation, 2023).

A few small studies and anecdotal reports suggest that some individuals may be sensitive to nightshades, but there is no strong evidence that tomatoes trigger arthritis flares in the general population (Versus Arthritis, 2023).

If you notice that eating tomatoes seems to worsen your symptoms, consider keeping a food diary and discussing it with your healthcare provider.

Can Tomatoes Trigger Arthritis Flares?

Image of some tomatoes on a branch.

For most people with arthritis, tomatoes are safe and may even be beneficial as part of an anti-inflammatory diet. However, a small number of people may experience increased joint pain or swelling after eating tomatoes or other nightshades. This is likely due to individual food sensitivities rather than a universal effect.

If you suspect tomatoes are a trigger, try eliminating them for a few weeks and monitor your symptoms. Reintroduce them gradually to see if symptoms return. Always consult your doctor or a registered dietitian before making major dietary changes.

Dietary Tips for Arthritis

  • Focus on a balanced, anti-inflammatory diet rich in fruits, vegetables, whole grains, lean protein, and healthy fats.
  • Include foods high in omega-3 fatty acids (e.g., oily fish, flaxseed, walnuts).
  • Limit processed foods, added sugars, and saturated fats.
  • Stay hydrated and maintain a healthy weight to reduce joint stress.
  • If you suspect a food sensitivity, keep a food and symptom diary.

Citations: NHS, 2023; Versus Arthritis, 2023

Treatment Options

While diet can play a role in managing arthritis, a comprehensive approach is often needed for lasting relief. This may include medication, physical therapy, lifestyle changes, and advanced treatments like Prolotherapy.

Prolotherapy

In recent years, Prolotherapy has built its reputation within the medical community for its clinically proven ability to treat arthritis. Published research has proven its pain-relieving, anti-inflammatory and regenerative benefits.

Prolotherapy involves injecting a natural regenerative solution with tiny needles. This has been shown to stimulate the production of collagen cells, the small cells needed to help with arthritis.

As prolotherapy is helping to treat the root cause of arthritis, it is deemed to be a permanent fix, preventing the symptoms from returning.

Disclaimer: The information provided in this section is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Prolotherapy may not be suitable for everyone, and outcomes can vary. Always seek the guidance of a qualified healthcare professional regarding your specific medical condition or treatment options. Never disregard professional medical advice or delay seeking it because of information you have read here.

Case Studies

Case Study 1: Osteoarthritis and Diet

Background: Mary, a 60-year-old with knee osteoarthritis, worried that tomatoes were worsening her pain.

Treatment: She kept a food diary and found no clear link. With guidance, she adopted a Mediterranean-style diet and received prolotherapy.

Outcome: Mary’s pain improved, and she was able to stay active without avoiding tomatoes.

Case Study 2: Rheumatoid Arthritis and Nightshades

Background: Tom, a 45-year-old with rheumatoid arthritis, noticed joint pain after eating large amounts of tomatoes.

Treatment: He eliminated tomatoes for a month, then reintroduced them in small amounts with no flare. He also benefited from prolotherapy for persistent joint pain.

Outcome: Tom learned to enjoy tomatoes in moderation and experienced less pain overall.

FAQs

Q1: Are tomatoes bad for everyone with arthritis?
No. Most people with arthritis can safely eat tomatoes. Only a small number may be sensitive.

Q2: What foods should I avoid with arthritis?
Limit processed foods, added sugars, and saturated fats. Focus on a balanced, anti-inflammatory diet.

Q3: Is prolotherapy safe for arthritis?
Prolotherapy is considered safe when performed by a qualified practitioner. It is minimally invasive and has a low risk of complications.

Q4: When should I see a doctor about arthritis pain?
If you have persistent pain, swelling, or difficulty moving, consult a healthcare professional for assessment and treatment.

Q5: How long does it take to see results from prolotherapy?
Most people notice improvement within a few weeks, but full recovery may take several months depending on the severity of arthritis.

Conclusion

Tomatoes are not inherently bad for arthritis and may even offer anti-inflammatory benefits for most people. If you suspect a sensitivity, try an elimination diet and consult your doctor. For those seeking lasting relief, advanced treatments like prolotherapy can help address the root cause of arthritis pain and restore your quality of life.

Contact ProHealth Clinic Today for Your FREE 15-Minute Discovery Call

Don’t let arthritis control your life any longer. Join the thousands of patients who have found lasting relief through prolotherapy at ProHealth Clinic.

Get in Touch
Phone: Call Us Now
Email: info@prohealthclinic.co.uk

Our Clinic Locations
London: 104 Harley Street, Marylebone, W1G 7JD
Manchester: The Hadley Clinic, 64 Bridge Street, M3 3BN
Bedford: The Village Medical Centre, Kingswood Way, MK40 4GH

All clinics offer the same award-winning prolotherapy treatment with convenient appointment times, including evenings and weekends.

Author Bio

Having performed over 10,000 procedures, Mr Oliver Eaton is one of the UK’s leading practitioners in the field of treating arthritis, with patients travelling to see him from across the UK, Europe, and the Middle East.

With over 12 years of clinical experience, Oliver is dedicated to helping patients understand their symptoms associated with arthritis and providing effective treatment options to alleviate them.

He first trained in Prolozone Therapy and Prolotherapy in America with the American Academy of Ozonotherapy and continued on to complete further training with the Royal Society of Medicine, Charing Cross Hospital in London, Keele University’s Anatomy & Surgical Training Centre, and the medical department of Heidelberg University in Germany.

Mr Eaton developed his treatment and examination approach through the process of treating his own chronic symptoms and is committed to making sure his patients experience the same life-changing effects his treatments had on him.

Over the years he has had the privilege of treating many elite-level athletes, including both Olympic and Commonwealth medallists.

Mr Eaton’s expertise has been featured in many national news and media publications, including The TelegraphThe Daily MailThe Daily Express, Women’s Health Magazine, and The Scotsman.

LinkedIn profile: https://www.linkedin.com/in/oliver-eaton-4338225b/

References

  1. Arthritis Foundation. (2023). The Truth About Nightshades and Arthritis
  2. Versus Arthritis. (2023). Arthritis and Diet
  3. NHS. (2023). Arthritis

Disclaimer: This article is for informational purposes only and does not substitute for professional medical advice. Always consult your healthcare provider before making treatment decisions.

Read more: