# Nutrition in sarcoidosis
Nutritional status and disease progression
ResearchediPositive results in clinical studies, not yet standard treatment
Research suggests that the nutritional status of people with sarcoidosis can influence how severely the disease progresses and how well someone recovers. People with malnutrition or deficiencies in certain nutrients may experience more fatigue and slow healing. This makes monitoring your nutritional status – for example through your general practitioner or dietitian – part of overall care. However, it is not the case that certain dietary patterns can cure or prevent the disease.
Calcium and vitamin D
ProveniIncluded in official guidelines, or approved by EMA or FDA
Sarcoidosis is accompanied by an abnormality in how the body processes calcium. Inflamed cells in your body produce a substance that causes your body to absorb more calcium from food than normal. This can lead to elevated calcium levels in the blood and urine, which carries risks of kidney stone formation and bone damage.
This means that many people with sarcoidosis **must be cautious** with calcium-rich foods (dairy products, certain vegetables) and sun exposure, especially if their calcium levels are already elevated.
ProveniIncluded in official guidelines, or approved by EMA or FDA
Vitamin D supplementation can further increase calcium absorption and is therefore usually handled cautiously; your doctor will determine whether this is relevant for your situation.
However, this is very personal – your calcium levels determine what is best for you. Discuss this with your healthcare provider or dietitian rather than avoiding or seeking out calcium-rich foods on your own.
Weight changes and fatigue
ResearchediPositive results in clinical studies, not yet standard treatment
Many people with sarcoidosis struggle with fatigue that affects appetite and weight. Some lose weight due to prolonged fatigue and pain; others develop weight problems due to long-term corticosteroids, which can increase appetite.
A stable weight is generally considered supportive, but this sometimes requires adjustments to dietary patterns and meal times. A dietitian can help find practical strategies that match your energy level – for example, smaller, more frequent meals if chewing or larger portions are tiring.
Ketogenic diet and imaging
ExperimentaliOngoing in study setting, outcome still unknown
Recent studies are investigating whether a ketogenic diet (low carbohydrate, high fat) has an effect on certain scan results in sarcoidosis. Some PET scans use glucose uptake as a measure of inflammation activity; a ketogenic diet can alter that glucose uptake, which can affect scan interpretation.
This is currently not a standard recommendation and is not prescribed for treatment of sarcoidosis itself. It is rather something being examined in research settings to better interpret scans. You should not start a ketogenic diet on this basis; always discuss this with your doctor if you have a scan planned.
Anti-inflammatory nutrition
ResearchediPositive results in clinical studies, not yet standard treatment
Diets rich in vegetables, fruits, whole grains and fish – patterns that are called anti-inflammatory – are generally considered healthy and can contribute to your wellbeing. There is no specific evidence that such patterns reduce or prevent sarcoidosis, but they do support your overall health while living with a chronic illness.
Drug interactions
Some foods and supplements can interact with medications used for sarcoidosis (particularly corticosteroids and anti-inflammatory agents). Certain supplements, for example, can alter how these medications work or increase side effects.
ProveniIncluded in official guidelines, or approved by EMA or FDA
It is therefore important to tell your doctor or dietitian if you take supplements (vitamins, herbal preparations, powder supplements), so they can be checked for possible interactions with your treatment.
Salt intake and blood pressure
ResearchediPositive results in clinical studies, not yet standard treatment
People with sarcoidosis are frequently prescribed corticosteroids, which can cause elevated blood pressure. Moderate salt use is therefore often recommended as support for heart health. However, this is general advice, not specific to sarcoidosis.
Nutrition and immune function
ResearchediPositive results in clinical studies, not yet standard treatment
Malnutrition weakens your immune system, which for someone with sarcoidosis – a condition affecting the immune system – can pose additional risks. Adequate intake of proteins, vitamins (especially B, C, D groups) and minerals (zinc, selenium) contributes to your resistance.
UnproveniNo scientific evidence that it works
There is no evidence that certain foods or supplements reduce sarcoidosis itself. However, this applies: good nutrition helps your body cope better with the disease and supports fatigue and recovery.
Alcohol and medicines
Advised againstiProven ineffective or harmful, or dangerous in combination with your treatment
Alcohol can worsen side effects of some medicines (such as certain anti-inflammatory drugs) and can be harmful to the liver, especially with long-term corticosteroid use. Your doctor can advise you how carefully you should handle alcohol given your treatment.
Practical support
If nutrition becomes difficult due to fatigue, swallowing problems or reduced appetite, a dietitian can help you. This is part of your treatment and many hospitals or general practitioners can refer you. The dietitian can also check whether your calcium status is balanced and whether your nutrition aligns well with your medicines.
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_This information never replaces a doctor's judgment. Always discuss your situation with your own healthcare provider._