# Nutrition and diets in ALS
In ALS, nutritional choices can be very important, not only for maintaining weight and strength, but also because of increasing eating and swallowing problems as the disease progresses. This tab describes which nutritional patterns and diets emerge in research and practice.
High-calorie nutrition (Hypercaloric diets)
ResearchediPositive results in clinical studies, not yet standard treatment
High-calorie nutrition means food and drink with higher energy content per amount: foods with more fat and/or carbohydrates, often in liquid or paste form so they are easier to consume. This can be, for example, thick smoothies, nutritional supplements, or regular food with added oil.
In ALS, unintended weight loss often occurs because muscle tissue decreases and the body needs more energy, especially in later stages of the disease. This weight loss is associated with faster disease progression. Research from 2026 (Development of a Complex Intervention to Support High Calorie Diets for People With Amyotrophic Lateral Sclerosis) specifically focused on how high-calorie nutrition can help in ALS, and supports the importance of adequate intake in early and middle stages. Higher calorie consumption is also mentioned in international guidelines for ALS care. This is not about intentional overeating, but about preventing deficiencies.
Risks are small, but swallowing can become more difficult as the disease progresses — then it may be necessary to adjust food texture.
Antioxidants and vitamin-rich nutrition
ResearchediPositive results in clinical studies, not yet standard treatment
This nutritional pattern focuses on food that contains many antioxidants and vitamins: vegetables, fruit, nuts, seeds, and fish oil. The aim is to protect cells against harmful free radicals.
A recent study (Pre-Diagnostic Plasma Carotenoids, Tocopherols and Retinol Levels, and Risk of Amyotrophic Lateral Sclerosis, 2026) looked at carotenoids, tocopherols (vitamin E) and retinol (vitamin A) before ALS diagnosis. This research suggests that the amount of these antioxidants in the blood may be associated with ALS risk, but the study could not prove that supplementation or dietary changes lower the risk. So it remains an interesting lead, not proven prevention or treatment.
Vitamin D is mentioned in several studies in connection with neurodegenerative diseases, especially regarding inflammatory processes in the nervous system. The exact importance in ALS is still not fully clear.
Mediterranean dietary pattern and prevention
ResearchediPositive results in clinical studies, not yet standard treatment
The Mediterranean pattern consists of plenty of vegetables, fruit, grains, fish, olive oil, and limited meat and dairy. This pattern is known for health benefits in many chronic diseases.
A large European study (EPIC4ND – European Prospective Investigation into Cancer and Nutrition follow-up for neurodegenerative diseases, 2026) examined whether Mediterranean dietary choices can reduce the risk of ALS. Although research shows that certain nutrients (especially vitamins and food with plenty of plant material) may play a role in disease risks in general, the evidence for ALS specifically is not yet conclusive. However, this pattern can fit well into ALS care because it combines nutritional value with easily adaptable textures.
Vitamin B and homocysteine
ResearchediPositive results in clinical studies, not yet standard treatment
Vitamin B12 and folate (vitamin B9) help regulate homocysteine levels — an amino acid that in high amounts can be harmful to the nervous system. In ALS, it has been investigated whether supplementation with vitamin B12 provides any benefit.
A Chinese ALS study (Impacts of oral supplementation of vitamin B12 and plasma levels of homocysteine on progression and survival in a Chinese ALS cohort, 2026) found indications that B12 supplementation could slow disease progression and possibly extend survival, especially when homocysteine levels decreased. However, this is research in one population; results can vary by patient and setting.
Another study (Interplay between B vitamins, fiber, and Bacteroides abundance: a predictive model for anxiety and depression in amyotrophic lateral sclerosis, 2026) demonstrates that B vitamins together with fiber-rich nutrition influence gut flora and mental health in ALS patients. This supports the importance of balanced nutrition with adequate vitamin B sources (leafy greens, grains, eggs).
Curcumin (curcuminoids)
ExperimentaliOngoing in study setting, outcome still unknown
Curcumin is an active substance from turmeric, a yellow spice, and is known as an antioxidant and anti-inflammatory.
A small study (The impact of long-term feeding with curcuminoids phospholipids enriched diet on disease progression of fALS, 2026) administered a diet enriched with curcuminoids to patients with hereditary ALS (fALS). Initial results were cautiously positive for disease progression, but the group was small and this is still highly experimental. Curcumin is not toxic in normal amounts (as in dishes), but supplementation with high doses is not yet standard recommended.
Nutrition for the microbiome and the gut-brain axis
ResearchediPositive results in clinical studies, not yet standard treatment
Recent research focuses on the gut-brain axis: the connection between gut flora (the bacteria in your intestines) and brain health, also called the microbiota-gut-brain axis. In neurodegenerative diseases such as ALS, this link is increasingly understood.
Nutrition with plenty of dietary fiber (grains, vegetables, fruit, legumes) and nutrients that feed certain gut bacteria (prebiotics) can positively influence the composition of your gut flora. Studies (Sustainable next-generation prebiotics for brain health: microbiota-gut-brain axis in neurodegenerative and demyelinating diseases, 2026) suggest that healthy gut flora can limit inflammatory processes in the body and nervous system. However, this is still in the research phase; concrete recommendations for ALS are still to follow.
Texture modifications and liquid nutrition
ProveniIncluded in official guidelines, or approved by EMA or FDA
As ALS progresses, swallowing problems develop as the muscles in the throat and mouth weaken. Then food and drinks must be adapted to soft, semi-liquid or completely liquid textures.
Studies on texture modification (Rheological and Technological Design of Texture-Modified Food Systems for Dysphagia Management in Amyotrophic Lateral Sclerosis, 2026) and also Lingual pressure as a physiological indicator for dysphagia in amyotrophic lateral sclerosis, 2026) show that careful adjustments to food texture are essential to enable safe eating and drinking and prevent malnutrition. However, this is always tailored with the help of a speech-language pathologist or dietitian.
Cholesterol and fat intake
ResearchediPositive results in clinical studies, not yet standard treatment
Research (Cholesterol in amyotrophic lateral sclerosis: a bystander, a biomarker, or a target?, 2026) investigates whether cholesterol levels and fat metabolism play a role in ALS. The possible connection between cholesterol and nerve function is interesting, but for now it is unclear whether changing fat intake affects the disease. This remains an area of research.
Diets to avoid
Advised againstiProven ineffective or harmful, or dangerous in combination with your treatment
Strict restrictive diets (such as very low calorie intake, extreme protein restriction, or elimination of entire food groups) are discouraged in ALS. The disease already causes weight loss and muscle breakdown; a diet that worsens this works against it. Also, prolonged fasting or extreme diets can further deplete energy reserves and further break down muscle tissue — exactly what ALS already does.
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**Summary:** Dietary choices in ALS are always individualized. They depend on the stage of the disease, swallowing and chewing ability, preference, cultural background, and medical situation (for example, having a feeding tube). A specialized dietitian with experience in ALS can help arrange food and drink safely and nutritiously, in consultation with your doctor and speech-language pathologist. The goal is to prevent weight loss, maintain adequate energy and nutrients, and keep eating safe and enjoyable for as long as possible.
_This information never replaces a doctor's judgment. Always discuss your situation with your own healthcare provider._