# Nutrition and diets in severe myasthenia gravis
In myasthenia gravis, dietary choices play a role in how the body copes with the condition. This tab describes which dietary patterns and diets have been studied or applied in this disease, and what is known about them from research.
Mediterranean dietary pattern
ResearchediPositive results in clinical studies, not yet standard treatment
The Mediterranean dietary pattern consists mainly of vegetables, fruit, whole grains, olive oil, fish and limited meat. This pattern is common in countries around the Mediterranean Sea.
A retrospective study in patients with myasthenia gravis (2026) showed that those who followed the Mediterranean dietary pattern showed various positive findings in terms of body measurements and health markers. The study was observational and thus could not prove that the diet directly improves the disease, but did show an association with certain health characteristics. Further research is needed to determine whether the pattern truly has a protective effect in this specific disease.
The Mediterranean dietary pattern is known as an anti-inflammatory dietary pattern. Because myasthenia gravis is an autoimmune disease in which the body attacks its own muscles, reducing inflammatory signals could theoretically be relevant. However, there are no studies showing that this diet slows the progression of myasthenia gravis or relieves symptoms.
Ketogenic diet
ResearchediPositive results in clinical studies, not yet standard treatment
The ketogenic diet is very low in carbohydrates and high in fats, causing the body to enter a state of ketosis – it burns mainly fats instead of carbohydrates.
A randomized pilot study (2026) investigated the effect of a ketogenic diet on clinical outcomes and immune markers in myasthenia gravis. The results are currently only limitedly known from summarized research, but it is being studied further. This diet is sometimes considered because it may have effects on immune function, but the evidence for myasthenia gravis is still very new and experimental.
The ketogenic diet can have disadvantages: it can initially cause fatigue (a problem if you are already fatigued from myasthenia gravis) and can be difficult to incorporate into daily life. Many people find it difficult to sustain long-term. For patients with swallowing or eating problems – which are common in myasthenia gravis – a very restrictive diet can present additional challenges.
Protein-rich nutrition
ResearchediPositive results in clinical studies, not yet standard treatment
High-protein food contains much meat, fish, eggs, dairy products, beans and nuts. Because myasthenia gravis affects the muscles, high-protein food seems intuitively logical – muscles need protein to continue functioning.
Research on nutrition and myasthenia gravis (2025) discusses nutritional factors and protein as part of integrated care. However, it has not been demonstrated that more protein directly improves muscle weakness or reduces the autoimmune reaction. Some dietary sources of protein may be beneficial, and the amount of protein someone needs depends on personal factors such as body weight, activity level and disease severity.
Important: swallowing and chewing problems (dysphagia) are common manifestations of myasthenia gravis, especially towards the end of the day. This can make it difficult to consume high-protein food, precisely because many protein sources are harder to chew or swallow.
Vitamins and supplements: docosahexaenoic acid (DHA)
Advised againstiProven ineffective or harmful, or dangerous in combination with your treatment
Docosahexaenoic acid (DHA) is an omega-3 fatty acid found in fatty fish and algae extracts. It is often recommended for brain and heart health.
A study from 2026, however, showed that DHA supplements can worsen myasthenia gravis by disrupting immune regulation. This means that DHA affects the body's defense in an unfavorable way in this autoimmune disease. This is an important warning signal: DHA supplements are not recommended for patients with myasthenia gravis.
This goes against the popular idea that omega-3 fatty acids are always healthy. For some autoimmune diseases, certain supplements can actually be harmful. This underscores why dietary choices in myasthenia gravis require personalized approaches.
Nutrition and gut microbiota
ResearchediPositive results in clinical studies, not yet standard treatment
Research into the gut microbiota (the bacteria and other micro-organisms in the intestines) shows that it plays a role in autoimmune diseases, including myasthenia gravis. The composition of your gut microbiota largely depends on what you eat.
Studies on the 'antibody-microbiota interface' (2026) and machine-learning analysis of gut bacteria (2025) show that certain dietary patterns can change the composition of your microbiota, which in turn can influence immune response. This is still largely a field of research, but suggests that dietary choices can work indirectly through your gut flora.
This does not mean there is a simple 'probiotic' or 'prebiotic' that cures myasthenia gravis, but it helps explain why dietary advice cannot be the same for everyone.
Nutrition with swallowing and chewing problems
ResearchediPositive results in clinical studies, not yet standard treatment
Many patients with myasthenia gravis experience difficulty swallowing and chewing (dysphagia), especially as the day progresses. This limits which foods are practically possible.
Research into dysphagia and nutrition (2026, 2025) focuses on adapted dietary patterns that are easier to consume: softer foods, foods that require little chewing, and attention to nutritional value despite limited choice. A dietitian can help adapt dietary choices to these practical limitations without promoting malnutrition.
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**In conclusion**: Dietary choices in myasthenia gravis are not one-size-fits-all. What is beneficial for one person may be unsuitable for another. This depends on personal symptoms, the stage of the disease, medications being used, and practical possibilities with swallowing and chewing problems. The role of nutrition in this disease is still being actively researched. All dietary choices – especially if you are considering supplements – should be discussed with your own healthcare provider or a dietitian who has experience with myasthenia gravis.