A diet for autoimmune diseases can significantly affect the course of the disease, reduce inflammation, and support overall health. Choosing the right foods and eating habits can help control symptoms and improve quality of life. Balanced nutrition can be an important tool in fighting autoimmune diseases, particularly by reducing inflammatory processes and supporting the immune system.
What are autoimmune diseases?
Autoimmune diseases occur when the immune system mistakenly attacks the body's own cells. This can lead to inflammation and damage to various organs and tissues. The most common autoimmune diseases include rheumatoid arthritis, systemic lupus erythematosus, coeliac disease, and autoimmune thyroiditis. These diseases can have different manifestations, but they are all associated with immune system dysfunction.
Causes and Symptoms
The causes of autoimmune diseases are still not fully understood. It is believed that they may be caused by genetic, environmental factors, and infections. For example, certain viruses can trigger autoimmune reactions in susceptible individuals. Symptoms vary depending on the specific disease but often include fatigue, joint pain, skin rashes, and digestive problems. It is important to diagnose the disease in time to avoid complications.
Impact of Diet
Nutrition can play an important role in controlling autoimmune diseases. Some foods can reduce inflammation, while others can exacerbate it. For example, foods high in sugar and saturated fats can promote inflammation. Choosing the right diet can help reduce symptoms and improve overall health. Balanced nutrition, rich in antioxidants and unsaturated fats, can support the immune system and reduce the risk of flare-ups.
Mediterranean Diet
The Mediterranean diet is characterised by a high intake of vegetables, fruits, whole grains, fish, and olive oil. It is rich in antioxidants and unsaturated fats, which can reduce inflammation. This diet also includes moderate consumption of red meat and dairy products, helping to maintain balance in nutrition.
Benefits for Autoimmune Diseases
As shown in the study (Ruggeri et al., Nutrients, 2023), the Mediterranean diet can be a protective choice for autoimmune thyroid disorders. It helps reduce inflammation levels and supports thyroid function. Additionally, this diet can improve overall cardiovascular health, which is important for people with autoimmune diseases.
Practical Tips
- Include more vegetables and fruits in your diet. For example, salads with olive oil and lemon juice can be a great addition to lunch.
- Consume fish at least twice a week. Salmon, mackerel, and sardines are excellent sources of omega-3 fatty acids.
- Replace saturated fats with olive oil. Use it for cooking and salad dressings.
- Reduce red meat consumption, preferring legumes and nuts as protein sources.
- Choose whole grain products such as quinoa, bulgur, and whole grain bread to provide the body with necessary fibres.
Gluten-free diet
A gluten-free diet excludes foods containing gluten, a protein found in wheat, rye, and barley. It is especially important for people with coeliac disease but can also be beneficial for other autoimmune diseases. Gluten can cause inflammatory reactions in sensitive individuals, so its exclusion can reduce symptoms.
Impact on Thyroiditis
Research (Piticchio et al., Frontiers in Endocrinology, 2023) shows that a gluten-free diet can affect the progression of autoimmune thyroiditis even in patients without coeliac disease symptoms. It can help reduce inflammation and improve thyroid function. This may be because gluten can stimulate an immune response that negatively affects the thyroid gland.
How to Follow
- Avoid foods containing wheat, rye, and barley. For example, bread, pasta, and beer may contain gluten.
- Choose gluten-free alternatives such as rice, corn, and buckwheat. Try gluten-free pasta and bread.
- Always check labels for gluten content. Many processed foods may contain hidden gluten.
- Consult a dietitian to develop a balanced gluten-free diet.
- Be aware of hidden sources of gluten in sauces, soups, and other processed foods.
Intermittent fasting
Intermittent fasting is an eating pattern that alternates between periods of eating and fasting. It can have a positive impact on autoimmune diseases. This approach helps the body restore balance by reducing inflammation and improving metabolic processes.
Mechanisms of Action
Research (Barati et al., Autoimmunity reviews, 2023) indicates that intermittent fasting can reduce inflammation and improve immune function. This is achieved by lowering levels of pro-inflammatory cytokines and enhancing metabolic health. Fasting stimulates autophagy — a process of cleaning cells from damaged components, which can be beneficial for the immune system.
Tips for Starting
- Start with a 12-hour fast, gradually increasing its duration to 16 hours. This will allow your body to adapt to the new routine.
- Drink enough water throughout the day to maintain hydration.
- Consult your doctor before starting a new eating regimen, especially if you have chronic conditions.
- Choose fasting periods that fit your lifestyle. For example, skip breakfast or dinner.
- Maintain a balanced diet during eating periods to provide your body with all necessary nutrients.
Microbiome and Autoimmune Diseases
The microbiome is a collection of microorganisms living in our body. It can influence the development and course of autoimmune diseases. Changes in the composition of the microbiome may be linked to the development of autoimmune diseases, as the microbiome affects the immune system and inflammatory processes.
Role of the Microbiome
According to research (Vieira et al., Lupus, 2014), the microbiome can influence the immune system and inflammatory processes. Disruption of the balance of microorganisms can lead to an increased risk of autoimmune reactions. Maintaining a healthy microbiome can be an important factor in reducing inflammation and improving immune response.
How to Maintain a Healthy Microbiome
- Include probiotics in your diet, such as yogurt and kefir, which promote the growth of beneficial bacteria.
- Consume more fibre from vegetables and fruits. Fibre is essential for nourishing beneficial bacteria in the gut.
- Avoid excessive use of antibiotics, which can destroy beneficial bacteria.
- Consider taking probiotic supplements if recommended by your doctor.
- Follow a varied diet to ensure diversity of microorganisms in the gut.
Scientific Sources
- Autoimmune Thyroid Disorders: The Mediterranean Diet as a Protective Choice, Nutrients, 2023
- Effect of gluten-free diet on autoimmune thyroiditis progression in patients with no symptoms or histology of celiac disease: a meta-analysis, Frontiers in endocrinology, 2023
- Intermittent fasting: A promising dietary intervention for autoimmune diseases, Autoimmunity reviews, 2023
- Diet, microbiota and autoimmune diseases, Lupus, 2014
Read Also
- Diet for hypothyroidism: the importance of iodine and selenium
- Lactose-free diet: basics and tips for healthy living
Dietary changes can significantly affect the course of autoimmune diseases. Choosing the right foods can help reduce inflammation and improve overall health. If you want to receive personalised dietary recommendations, book a consultation with our dietitian.
Frequently Asked Questions
How Does Diet Affect Autoimmune Diseases?
Diet can reduce inflammation and support the immune system, helping to control symptoms of autoimmune diseases.
What Diet is Suitable for Autoimmune Diseases?
The Mediterranean diet, rich in antioxidants and unsaturated fats, can reduce inflammation and support health in autoimmune diseases.
Does a Gluten-Free Diet Help with Autoimmune Diseases?
A gluten-free diet can reduce inflammation and improve thyroid function, especially in autoimmune thyroiditis.
What is Intermittent Fasting and How Does It Affect Autoimmune Diseases?
Intermittent fasting involves alternating periods of eating and fasting, which can reduce inflammation and improve immune function.
Article Author: Olga Bezugla — PhD in Medicine, clinical dietitian, and expert in metabolic health and clinical nutrition. Postdoctoral fellowship — DIfE (Deutsches Institut für Ernährungsforschung), Potsdam, Germany. More About the Doctor