Some diets and dietary choices can help manage symptoms of psoriatic arthritis (PsA). However, there is not one specific diet for PsA.
Psoriatic arthritis (PsA) is a chronic condition. There is currently no cure, but treatment can help manage the symptoms.
No specific diet will cause or treat psoriasis or PsA, but some dietary tips may help manage the symptoms.
This article details which diets and foods may benefit a person with PsA and which foods may be best to avoid.
Doctors do not prescribe a specific diet for PsA, but diets that focus on certain ingredients may have benefits.
A Mediterranean diet, for instance, focuses on fresh, plant-based foods and includes less meat than a typical Western diet. It does not contain a lot of processed foods or added sugars or fats, and
Some health conditions may also be
Read on to learn about some diets that may help people with PsA.
1. Gut-friendly diet
The balance of bacteria in the gut
Foods and supplements that may boost the health of the gut bacteria include:
- Fermented foods: Kimchi, kefir, kombucha, sauerkraut, yogurt, and miso contain beneficial bacteria.
- Probiotics: Different types have different functions. A person should ask a doctor or dietitian to recommend an appropriate option.
- Fiber: Fiber
can benefitgut health and the gut microbiota.
2. Gluten-free diet
If a person has gluten sensitivity, they will likely benefit from following a gluten-free diet. However, people should always consult a doctor before adopting a gluten-free diet, as it may not suit everyone.
A gluten-free diet requires careful planning because it can
3. Weight loss diet
Making efforts to maintain a moderate weight can help people avoid obesity and other comorbidities that have an association with psoriatic diseases,
Following a calorie-controlled diet may be beneficial. A nonrestrictive diet that focuses mainly on fresh fruits, vegetables, and whole grains may also help a person manage their weight.
4. Heart-healthy diet
People with PsA appear to have a
- Opt for foods that are low in saturated fats, trans fats, and added salt and sugar.
- Eat plenty of fresh fruits and vegetables.
- Avoid highly processed foods.
- Limit alcohol intake to 2 drinks per day for males and 1 per day for females.
5. Mediterranean diet
The Mediterranean diet encourages consuming lots of fruits, vegetables, and fish.
However, any diet that includes plenty of fresh, plant-based ingredients is likely to have overall health benefits.
6. High fiber diet
The authors of a
- help reduce oxidative stress
- promote healthy gut flora
- contribute to weight management
For a high fiber diet, a person should:
- choose whole-grain cereals
- focus on fresh, unprocessed fruits and vegetables
- eat legumes such as beans, lentils, and split peas
- choose nuts and seeds such as almonds, chia seeds, and flaxseed
7. Other diets
Other options, including paleo and ketogenic diets, may help a person manage PsA.
Although these diets are currently popular and may provide health benefits, clinical studies have not yet found that they have specific benefits for people with PsA.
A person who wishes to try either diet should consult a doctor first.
The sections below look at these options in more detail.
The paleo diet consists of foods that early humans presumably ate. It typically prioritizes minimally processed meat, fish, vegetables, fruits, nuts, and seeds.
A 2016 review suggests that the paleo diet may help with weight management and metabolic health conditions.
The keto diet is typically low in carbohydrates and high in fat.
8. Anti-inflammatory foods
Anti-inflammatory foods that may help include:
9. Fiber and antioxidants
The Arthritis Foundation encourages people with arthritis to eat fiber because it may reduce inflammation.
The foundation also recommends following a diet that is high in antioxidants. These compounds can help decrease inflammation by removing free radicals — byproducts of many bodily processes that can negatively affect health.
Foods that provide fiber and antioxidants include:
10. Healthy fats
A person’s diet should also include healthy fats,
- extra-virgin olive oil
- avocado oil
- other vegetable oils
Fish such as salmon, trout, and herring contain anti-inflammatory omega-3 fatty acids, which benefit heart health.
11. Vitamin D
Although most vitamin D comes from sun exposure, dietary sources are also important.
Food sources of vitamin D
- egg yolks
- fortified dairy products, cereals, and orange juice
- oily fish
Multiple studies suggest that ginger might
Curcumin is a chemical in turmeric that could be beneficial for people with PsA. One
For more science-backed resources on nutrition, visit our dedicated hub.
The National Psoriasis Foundation recommends that people with psoriasis follow a heart-healthy diet, as outlined by the
Some processed foods may contain a highly processed type of fat known as a trans fat, which can increase your risk for heart disease.
However, in 2015, the
Foods that may contribute to weight gain include fried foods, refined grains, added sugars, and alcohol.
For this reason, people with PsA may wish to avoid:
- foods and beverages with added sugar, including soda and candy
- white bread, white rice, and other processed bread and cereal products
- packaged cookies, cakes, and snack foods
- processed meats such as bacon, sausages, and hot dogs
- fried foods
- alcoholic beverages
Here are some questions people often ask about dietary choices for PsA.
Can diet reverse psoriatic arthritis?
No diet can cure PsA, but eating certain foods can help limit or reduce inflammation. This includes fatty fish, nuts, lean meats, a variety of vegetables, and healthy fats such as olive oil.
Do certain foods trigger psoriatic arthritis?
Foods that can trigger PsA include fatty meats, high fat dairy products, refined grains, highly processed foods, alcohol, and foods high in added sugars.
What type of diet is best for psoriatic arthritis?
PsA is an inflammatory condition. Freshly prepared foods that are rich in antioxidants may help manage inflammation.
Doctors do not recommend a specific diet for PsA, but the Mediterranean diet, which includes lots of fresh, plant-based foods,
Other diets, such as a weight loss diet or a gluten-free diet, may be helpful for people who have specific conditions with links to PsA.
Healthcare professionals do not recommend a specific diet for PsA, but a person may benefit from a diet that:
- promotes overall health
- reduces inflammation
- increases fiber intake
- is heart-healthy
- helps them manage their weight
- is low in added sugars
- contributes to healthy gut bacteria
In general, a diet that emphasizes plant-based foods while limiting the intake of processed foods is likely to be beneficial.