How can diet affect psoriasis?

Foods to eat if you have psoriasis

Psoriasis diet

Your psoriasis can flare-up because of things you encounter in your daily life. These are known as triggers.1 What you eat and drink can trigger your psoriasis. It is important to know what these trigger foods are so you can avoid them.2 As well as avoiding trigger foods it is important to have a healthy diet. Some foods may also reduce the severity of your flare-ups.2

diet for psoriasis

Foods to avoid if you have psoriasis

Everyone has different triggers. What triggers someone else’s psoriasis may not trigger yours.1 Common trigger foods include:2

  • Tomatoes
  • Potatoes
  • Aubergines
  • Peppers

Anti-inflammatory diet

Psoriasis is an inflammatory disease so you may benefit from avoiding or reducing your intake of foods which are proven to increase inflammation. These types of food include:1-3

  • Red meat, especially beef
  • Sausages, bacon and other processed red meat
  • Dairy products
  • Eggs

It is a good idea to keep a diary of the foods you eat and how your skin looks and feels. This may help you find out which foods trigger your psoriasis.

Foods to eat if you have psoriasis

If you have psoriasis it is worth reassessing your diet and lifestyle. A healthy diet and reducing alcohol consumption are factors that can improve symptoms of psoriasis.1.2

A diet high in anti-inflammatory foods can help reduce the severity of a flare-up. These foods include:2,3

  • Fruit
    - Berries, cherries and grapes
  • Vegetables
    - Broccoli, cauliflower, Brussels sprouts, kale and spinach
  • Fish containing omega-3s
    - Salmon, sardines, trout and cod
  • Heart-healthy oils
    - Olive oil, coconut oil, flaxseed oil and safflower oil

Weight loss approach

If you are overweight, losing weight is not only good for your overall health but may also improve your psoriasis4 in the following ways:

  • Decrease the severity of your symptoms1
  • Reduce the number of flare-ups you have5
  • Make your treatments more effective1

You should always aim to have a healthy diet and speak to your doctor for advice about how to lose weight.

Gluten - free approach

Gluten is a protein found in common cereal grains.6 It is estimated about 1 in 4 people with psoriasis are sensitive to gluten.6 If you think you are sensitive or intolerant to gluten you should speak to you doctor.

If you have psoriasis and have been diagnosed with a sensitivity or intolerance to gluten you should avoid foods containing:2,7

  • Wheat
  • Barley
  • Rye
  • Malt

Vitamins and supplements

A healthy, balanced diet contains vitamins; however, some people like to take supplementary vitamin tablets. Fish oil, vitamin D, vitamin B-12 and selenium have been studied for psoriasis.2 If you are thinking about taking vitamin tablets you should talk to your doctor.1

Always seek the advice of your doctor or another qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.

UK/IE MAT-26704 Date of prep: July 2019

  1. www.healthline.com/health/psoriasis# (accessed July 2019).
  2. www.healthline.com/health/psoriasis/food-triggers-for-psoriasis# (accessed July 2019).
  3. www.psoriasis.org/treating-psoriasis/complementary-and-alternative/diet-and-nutrition/anti-inflammatory-diet (accessed July 2019).
  4. M Debbaneh et al. J Am Aca Dermatol 2014; 71(1): 133-40.
  5. www.everydayhealth.com/psoriasis/treatment/daily-tips-for-easing-psoriasis (accessed July 2019).
  6. www.psoriasis.org/advance/do-gluten-free-diets-improve-psoriasis (accessed July 2019).
  7. A Egeberg et al. BJD 2017; 177(6): e329-30.

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