Researchers tested whether a ketogenic diet (a high-fat, low-carb eating plan) could help people with psoriatic arthritis, a condition that causes joint pain and skin problems. In this early-stage study, participants who followed a ketogenic diet showed improvements in their joint symptoms and markers related to heart health. While these results are promising, this is just the beginning of understanding whether this diet could be a helpful treatment option. More research with larger groups of people is needed before doctors can confidently recommend it.
The Quick Take
- What they studied: Whether eating a ketogenic diet (mostly fats and proteins, very few carbohydrates) could reduce joint pain and improve heart health in people with psoriatic arthritis
- Who participated: The abstract doesn’t specify the exact number of participants or their detailed characteristics, but this was described as a ‘proof of concept’ study, meaning it was a small, early-stage test
- Key finding: People who followed the ketogenic diet showed improvements in their joint disease activity and markers related to cardiovascular (heart) risk, though the specific numbers aren’t detailed in this correction notice
- What it means for you: This suggests a ketogenic diet might help some people with psoriatic arthritis feel better, but it’s too early to make this a standard recommendation. Talk to your doctor before making major diet changes, especially if you have joint problems or heart concerns
The Research Details
This was a ‘proof of concept’ study, which means researchers were testing whether an idea is worth studying more carefully. Participants followed a ketogenic diet—a way of eating that’s very high in fats and proteins but extremely low in carbohydrates (the sugars and starches found in bread, pasta, and fruit). The researchers measured how the participants’ joint symptoms changed and checked blood markers related to heart health. This type of early-stage study helps scientists decide if a larger, more detailed study is needed.
Psoriatic arthritis is a painful condition that affects both joints and skin, and it also increases the risk of heart disease. If diet changes could help with both problems at once, it would be valuable information for patients and doctors. Testing this idea in a small study first is the responsible way to explore whether a ketogenic diet deserves more serious investigation.
This is a correction to a previously published study, which means the original research had some errors that needed fixing. The study was small and early-stage, so the results are preliminary. The fact that it was published in PLoS ONE, a peer-reviewed journal, means other scientists reviewed it, but larger and longer studies would be needed to confirm these findings
What the Results Show
The main result was that participants following the ketogenic diet showed improvements in their psoriatic arthritis disease activity, meaning their joint pain and symptoms got better. Additionally, the researchers found improvements in cardiovascular risk markers—measurements in the blood that doctors use to predict heart disease risk. These findings suggest that the diet may have helped both the joint problems and the heart health concerns that often go together in psoriatic arthritis. However, because this was a small, early-stage study, these results should be seen as interesting preliminary findings rather than proven facts.
The abstract doesn’t provide details about secondary findings, but researchers typically look at things like inflammation levels, weight changes, and overall quality of life in these types of studies. The fact that improvements were seen in both joint symptoms and heart-related markers suggests the ketogenic diet might work through reducing inflammation throughout the body.
There is growing research interest in how diet affects autoimmune conditions like psoriatic arthritis. Some previous studies have suggested that low-carb diets might reduce inflammation, but specific research on ketogenic diets for psoriatic arthritis is still limited. This study adds to that emerging body of evidence, though it’s one of the earlier investigations in this specific area.
This is a small, early-stage study, so we don’t know if the results would hold up in larger groups of people. We don’t know how long the benefits lasted or whether people could stick with the ketogenic diet long-term. The study doesn’t tell us whether the diet works better than other treatments or whether it’s safe for everyone with psoriatic arthritis. People with certain health conditions might not be able to safely follow a ketogenic diet
The Bottom Line
This research is too early-stage to make a strong recommendation. If you have psoriatic arthritis and are interested in dietary changes, discuss this with your rheumatologist or doctor before starting a ketogenic diet. They can help you decide if it’s appropriate for your specific situation and monitor your health. Don’t stop taking prescribed medications without medical guidance. Confidence level: Low (this is preliminary research)
People with psoriatic arthritis who are looking for additional ways to manage their condition might find this interesting. People concerned about heart health and joint problems should pay attention as more research develops. People with kidney disease, certain liver conditions, or those taking specific medications should definitely talk to their doctor before trying a ketogenic diet
If someone were to try this diet under medical supervision, improvements in joint symptoms might take several weeks to a few months to become noticeable. Heart-related improvements typically take longer to measure. However, this is based on very limited research, so individual results would vary
Want to Apply This Research?
- Track daily joint pain levels (on a scale of 1-10) and energy levels if following a ketogenic diet. Also note any changes in swelling or mobility. Record this daily in a simple log to see patterns over weeks
- If considering this diet with doctor approval, use the app to plan and log meals that fit ketogenic guidelines (high fat, moderate protein, very low carbs). Track which foods make you feel better or worse. Set reminders to drink plenty of water, as this diet requires good hydration
- Create a monthly summary view showing trends in joint pain, energy, and diet adherence. Share this data with your healthcare provider at regular appointments. Monitor for any side effects or changes in other health conditions. Track any changes in heart-related symptoms like shortness of breath or chest discomfort
This research is preliminary and represents early-stage findings. A ketogenic diet is not a proven treatment for psoriatic arthritis and should not replace prescribed medications or medical care. Before making any significant dietary changes, especially if you have psoriatic arthritis, heart disease, kidney disease, or take medications, consult with your doctor or rheumatologist. This diet may not be appropriate for everyone. Individual results vary, and what works for one person may not work for another. Always seek professional medical advice before starting new treatments or diets.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.