# Nutrition in systemic amyloidosis
Dietary restrictions due to digestive problems
Systemic amyloidosis can seriously affect your digestive system, which directly impacts what you can safely and comfortably eat. Amyloid deposits in the stomach, small intestine or colon can lead to difficulty swallowing, early satiety, constipation or conversely diarrhoea. These problems make it difficult for your body to absorb enough nutrition.
ProveniIncluded in official guidelines, or approved by EMA or FDA
Malnutrition is a common and serious problem in patients with systemic amyloidosis, especially when the digestive system is involved. This limits your ability to regain strength and can reduce your resistance to infections and treatment side effects.
What you eat therefore often needs to be adjusted to what your body can manage. This may mean smaller portions, certain textures working better than others, or needing several small meals instead of three large ones. This is not something you should figure out yourself — your treatment team, and especially a dietitian, can determine this for your situation.
Proteins and muscle strength
Your body needs sufficient protein to maintain muscle and support your immune system. This is particularly important with amyloidosis, because the disease itself and certain treatments can lead to muscle loss.
ResearchediPositive results in clinical studies, not yet standard treatment
Research shows that protein intake and overall nutritional status are directly linked to how well people with amyloidosis fare. Good nutrition helps your body fight the disease better and tolerate medication side effects more easily.
How much protein you need varies from person to person, depending on your age, weight, kidney function and the type of amyloidosis you have. Especially with kidney involvement, protein choices need to be made carefully, as some types of protein can put strain on kidney function. This is something your dietitian can help you with personally.
Fluid intake and kidney problems
Amyloidosis can affect the kidneys, meaning your body struggles to regulate water and salt balance. This can lead to fluid accumulation (swelling) or conversely fluid depletion.
ResearchediPositive results in clinical studies, not yet standard treatment
For patients where amyloidosis affects the kidneys, fluid restriction is often part of the treatment. The exact fluid schedule depends on how well your kidneys are still functioning and whether you need dialysis.
Your doctor determines how much you can safely drink. This seems simple, but salt in food and fluid-rich foods (soup, fruit) also count. This requires careful coordination with your dietitian.
Salt and heart function
Too much salt in your diet can worsen fluid retention, especially if your heart is involved in the amyloidosis. A heart weakened by amyloidosis can have extra difficulty coping with fluid excess.
ResearchediPositive results in clinical studies, not yet standard treatment
Salt restriction is recommended for many patients with cardiac amyloidosis (amyloidosis of the heart) as part of fluid management. This helps prevent fluid accumulation and reduces strain on the heart.
This is not the same as a complete salt ban — it's about being sensible with salt in combination with your fluid intake. Your doctor and dietitian can help you incorporate this realistically into your daily life.
Vitamin and mineral deficiencies
When your digestion is not working properly, vitamins and minerals can be absorbed less well. This can lead to deficiencies, especially in vitamins such as B12, iron and calcium.
ResearchediPositive results in clinical studies, not yet standard treatment
Vitamin and mineral deficiencies are often found in patients with amyloidosis, especially if there are digestive problems. This can worsen fatigue, anaemia and bone problems.
Whether and which supplements you need is determined by your doctor based on blood tests. This is really something to discuss with your treatment team or dietitian — adding supplements yourself can sometimes cause problems with your medications.
Interaction between food and medication
Some medicines used for amyloidosis may work better or worse depending on what you eat. Certain foods can also worsen side effects of medicines.
ResearchediPositive results in clinical studies, not yet standard treatment
There are known interactions between many common foods and treatments for amyloidosis. These depend on which specific medicines you are taking.
Your pharmacy and doctor can advise you on timing of intake (for example on an empty stomach or with food) and foods you should avoid. This is personal advice that you should not try to figure out yourself.
Antioxidants and anti-inflammatory nutrition
Some foods contain substances that may help fight inflammation. It makes sense that these seem interesting for a disease like amyloidosis.
ExperimentaliOngoing in study setting, outcome still unknown
There is some scientific research into the role of antioxidants and certain dietary patterns in amyloidosis, but this research is not yet conclusive. It is unclear whether specific foods can slow down amyloidosis itself.
This does not mean that healthy nutrition is not important — it is about properly supporting your body during treatment. But nutrition is not a replacement for medicine. Choosing foods based on what your body needs (strength, fluid balance, kidney function) is much more important than looking for 'miracle cures'.
Alcohol
Alcohol can cause multiple problems in amyloidosis, especially if your heart, kidneys or stomach are affected.
ResearchediPositive results in clinical studies, not yet standard treatment
For patients with certain forms of amyloidosis (in particular cardiac amyloidosis), caution with alcohol is recommended, as it can affect heart function and disturb fluid balance. Alcohol can also put extra strain on the stomach.
This is something to discuss with your doctor in light of your specific situation.
Practical support with eating problems
If you have difficulty eating because of amyloidosis, your treatment team can help address this. This may mean you receive nutrition in other forms (smoother, in smaller pieces) or alternative nutritional support is needed.
ProveniIncluded in official guidelines, or approved by EMA or FDA
Specialized nutritional support from dietitians, speech therapists (for swallowing problems) and other team members helps prevent malnutrition and improves your quality of life.
This is professional care you do not need to arrange yourself — ask your doctor if you can be referred to a dietitian with experience in amyloidosis.
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_This information never replaces a doctor's judgment. Always discuss your situation with your own healthcare provider._