# Nutrition in facioscapulohumeral dystrophy
Oxidative stress and antioxidants
Oxidative stress plays an important role in FSHD muscle decline. This means that harmful substances (free radicals) accumulate in the muscles, which contributes to damage of muscle cells.
ResearchediPositive results in clinical studies, not yet standard treatment
Studies have shown that people with FSHD have elevated levels of oxidative markers in their blood and muscles, and that this is associated with muscle weakness.
Whether nutrition with more antioxidants (vitamins such as C and E, selenium-containing substances, polyphenols from vegetables and fruit) can slow down this process is being actively researched.
ResearchediPositive results in clinical studies, not yet standard treatment
Recent practical studies suggest that personalized antioxidant combinations are associated with improvements in muscle strength and physical activity in the short term, but the sustainability and mechanism are not yet fully understood. This research is still in a relatively early stage and it is unclear which antioxidants, in which combination and in which quantity are most beneficial.
For nutritional choices based on antioxidants, we recommend discussing this with your dietitian or healthcare provider. They know your whole situation and can see what is appropriate alongside other treatments you are undergoing.
Creatine
Creatine is a substance that normally occurs in your body and plays a role in energy exchange in muscles.
ResearchediPositive results in clinical studies, not yet standard treatment
A recent multicenter trial in children with FSHD showed that creatine monohydrate had an effect on motor function, although the effects were modest. This research is an important first step, but more clarity on long-term effects, appropriate dosage and which patients benefit most is still needed.
Creatine supplement is available as a dietary supplement in many countries. Whether this is useful for your situation is best discussed with your healthcare provider or dietitian. They can look at potential benefit, possible interactions with your medicines, and how this fits into your treatment plan.
Iron
ExperimentaliOngoing in study setting, outcome still unknown
In animal models of FSHD, iron supplementation reduced damage to muscle cells. This is an interesting finding, but it is not yet clear whether the same applies to people with FSHD. Iron is essential for many body functions, but too much iron can also be harmful, especially when it is not well controlled.
Taking iron supplement alone without testing is not recommended. If you are considering iron supplementation, it is important to first discuss your iron levels (also via blood test) with your doctor or dietitian.
Other micronutrients and dietary pattern
ResearchediPositive results in clinical studies, not yet standard treatment
Research suggests that various micronutrients (vitamins and minerals) and the composition of the dietary pattern may be important for muscle cell function and inflammatory processes. However, this applies much more broadly than just FSHD. For FSHD specifically, it has not yet been established which dietary ingredients, in which composition and quantity, are most beneficial.
A general approach with plenty of vegetables, fruit, whole grains, fish and healthy fats is nutritious for everyone, including people with FSHD. For personal nutritional choices, it is better to consult a dietitian, who can look at your body, your movement capacity, any swallowing or stomach problems, and your current treatment.
Nutrition and muscle fatigue
People with FSHD often experience muscle fatigue, and this can affect dietary choices.
ResearchediPositive results in clinical studies, not yet standard treatment
Some studies suggest that regular protein intake and stable energy levels through smaller, more frequent meals may be beneficial. However, this is not an FSHD-specific phenomenon; it applies generally to conditions with muscle weakness.
What regular eating means for you – how large, how often, what composition – depends on your own situation. Discuss this with your dietitian.
Swallowing problems and nutritional support
As FSHD progresses, some people may have difficulty swallowing, especially with solid foods. This can lead to poor nutrient absorption or malnutrition.
ResearchediPositive results in clinical studies, not yet standard treatment
In case of severe swallowing problems, tube feeding may be necessary. This is not FSHD-specific but applies to various muscle disorders.
Whether tube feeding is relevant for you is determined together with your treatment team, based on your symptoms and nutritional status.
Interactions with treatments
Many medications that can be used for FSHD (including corticosteroids if proposed, and possibly future gene-targeted therapies) can affect appetite, fluid balance, bone marrow mineralization, and how your body absorbs nutrients. It is important that your dietitian or doctor is aware of all medications you take, so that nutritional choices can be properly aligned with them.
Weight management
Because FSHD primarily affects certain muscles, body composition can change without much change in total body weight. Muscle tissue is gradually replaced by fat and connective tissue.
ResearchediPositive results in clinical studies, not yet standard treatment
This changes the way the body uses energy and can have implications for metabolic health. Simply monitoring scale weight is therefore not always a good measure; body composition is more important.
For advice on healthy weight and nutrition in relation to your movement capabilities, consult your dietitian.
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_This information never replaces a doctor's judgment. Always discuss your situation with your own healthcare provider._