# Nutrition in Fabry Disease
Fabry disease brings nutrition-related challenges for many patients. Recent research points to gastrointestinal problems in adults and children, and to possible links between nutrition, heart function and inflammatory processes in the body. This tab describes which nutritional approaches are being researched and what is known about them.
Balanced nutrition with attention to fats
ResearchediPositive results in clinical studies, not yet standard treatment
This nutritional pattern focuses on a regular supply of all nutrients — carbohydrates, proteins, fats and vitamins — without radical exclusion. The aim is stable energy and supporting heart function and kidney function. Recent research suggests that especially the *ratio* of certain fats is important: omega-3 fatty acids (from fish, nuts, flaxseed) versus omega-6 fatty acids (abundant in plant oils and processed food).
A 2025 study showed that an imbalance between these fatty acids from a young age can be associated with reduced blood flow in the brain. In patients with Fabry disease — where heart function and blood vessel function are also under pressure — such a balance could theoretically be important. In concrete terms, this means that nutrition with plenty of oily fish, walnuts and olives, followed by moderate amounts of plant oils, is the subject of research.
This pattern requires no rigid schedules; it is about nutrition remaining nutritious and not heavily shifted towards one type of fat.
Anti-tumour necrosis factor (anti-inflammatory) nutrition
ResearchediPositive results in clinical studies, not yet standard treatment
Research shows that Fabry disease is accompanied by chronic inflammatory processes in the body. Nutritional patterns that can dampen these inflammations — such as plenty of vegetables, fruit, legumes, herbs and little processed meat — are being researched. This nutritional pattern resembles the Mediterranean pattern, but has the specific aim of lowering inflammatory markers in the blood.
The reasoning: because heart attacks and kidney damage in Fabry are partly caused by inflammations around the accumulation of fatty substances (globotriaosylceramide, Gb3), dampening general inflammation may have a supporting effect.
Studies from 2024–2025 examined the lipid profile (fat metabolism) of patients with Fabry. There are indications that certain dietary choices influence plasma lipid composition and inflammatory markers, but no direct evidence of patient benefit yet.
Regular, smaller meals
ResearchediPositive results in clinical studies, not yet standard treatment
Gastrointestinal symptoms are common in Fabry disease — abdominal pain, diarrhoea, constipation and nausea. A 2025 study of adults showed that these symptoms have major impacts on quality of life and mental wellbeing.
Regular smaller meals instead of three large ones can put less strain on the digestive system. This is not specific to Fabry, but given the high prevalence of abdominal complaints this nutritional pattern is frequently discussed with treating physicians and dietitians.
Practice varies per patient: some feel better with five to six small portions a day, others with three regular meals plus something small in between. This requires personal experimentation and guidance.
Adequate protein intake aimed at muscle strength
ResearchediPositive results in clinical studies, not yet standard treatment
A 2025 study of Italian patients with Fabry examined the relationship between physical performance, nutritional status and protein intake. The background: patients with Fabry sometimes have reduced muscle strength and endurance, and malnutrition occurs.
A nutritional pattern with attention to adequate protein — from fish, meat, eggs, dairy, beans and nuts — can help prevent muscle breakdown. This makes a particular difference for patients with active treatment and noticeable muscle weakness.
This is not the same as a 'high-protein diet' with excessive amounts, but rather conscious incorporation of protein sources at regular times.
Adapted nutrition in case of kidney symptoms
ResearchediPositive results in clinical studies, not yet standard treatment
Fabry disease can gradually affect the kidneys. Recent research (2026) shows that certain genes influence how quickly kidney function declines. When kidney function decreases, dietary choices — especially regarding salt, potassium and phosphate — may become important.
However, this is *not* general dietary advice, but adapted nutrition that goes with specific kidney symptoms and laboratory values. It may involve reducing salt intake, or consuming certain foods more cautiously. This is completely tailored to the individual patient's kidney data.
Patients with kidney changes usually receive targeted advice from their kidney specialist and dietitian.
Nutrition around medication use
ResearchediPositive results in clinical studies, not yet standard treatment
Newer treatments for Fabry, such as lucerastat (2026) and migalastat, may affect digestion and nutrient absorption. SGLT2 inhibitors (medications for heart and kidney) are also used in Fabry, and may have dietary effects.
Research into direct dietary interactions is ongoing, but caution is warranted with diets that are drastic (such as extreme prolonged fasting) while medications are being used. The treating physician must always be aware of dietary choices.
Ketogenic diet and periodic fasting
ExperimentaliOngoing in study setting, outcome still unknown
The ketogenic diet (very low in carbohydrates, high in fats) and periodic fasting (for example intermittent fasting) are being studied in various metabolic diseases, partly because they can affect fat breakdown.
In Fabry disease, where the accumulation of certain fats (Gb3) is the problem, these approaches are theoretically interesting. However: there are no published studies yet showing that they are safe or beneficial specifically for Fabry. The risk of disruption to nutritional status, especially in children, is real.
This should only be undertaken under strict medical supervision and with regular monitoring.
Nutrition as part of treatment
Dietary choices in Fabry disease are tailored. They depend on the disease stage, the nature and severity of gastrointestinal symptoms, kidney function, the treatments someone is taking, and personal preferences and tolerance.
A dietitian with experience in hereditary metabolic diseases, or a practitioner at a Fabry centre, can help determine which nutritional adjustments are worthwhile for your personal situation. Nutrition is not a substitute for medication, but can significantly improve wellbeing and daily comfort.
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_This information never replaces a doctor's judgment. Always discuss your situation with your own healthcare provider._