Dysphagia and ALS/MND: When Swallowing Will Change and How to Prepare

ALS (Amyotrophic Lateral Sclerosis, commonly known as Lou Gehrig's disease) is one of the conditions that demands the most from families — not just physically, but emotionally and practically in ways that are genuinely different from every other diagnosis.

Most conditions with dysphagia involve uncertainty. Will things improve? Will they stabilise? With ALS, the trajectory is known. The dysphagia will progress. The question is not whether to prepare but when and how — and the answers to that question, made at the right time with the right information, make a meaningful difference to both the length and quality of life remaining.

What I've observed in caring for people with neurodegenerative conditions is that the families who do best are the ones who understand what is coming before it arrives — not because knowing is easy, but because preparation is possible and ignorance is not a kindness. This guide is written in that spirit.

What ALS Does to Swallowing — And Why It's Different

Amyotrophic lateral sclerosis (ALS) — also known as Motor Neurone Disease (MND) in the UK and Australia — is a progressive neurodegenerative condition that attacks the motor neurons controlling voluntary muscle movement. Every muscle in the body that we move deliberately is ultimately affected. This includes all the muscles involved in swallowing.

Dysphagia is very frequent in ALS, affecting approximately 85% of patients. It is caused by weakness and paralysis of the lips, facial muscles, tongue, larynx, and pharynx resulting from affected cranial nerves. It may lead to complications including malnutrition, dehydration, aspiration pneumonia, respiratory failure, and reduced quality of life and social isolation.

What makes ALS dysphagia fundamentally different from post-stroke or dementia dysphagia is this: it will not improve. Stroke dysphagia often recovers. Dementia dysphagia changes slowly over the years. ALS dysphagia progresses — sometimes quickly, sometimes more slowly — but always in one direction. There are no rehabilitation exercises that restore what ALS has taken. There are management strategies that preserve safe eating for as long as possible, and there is preparation for when those strategies are no longer sufficient.

Understanding this from the beginning — not as a cause for despair but as a framework for decision-making — is the most important thing a caregiver can do.

Bulbar Onset vs Limb Onset — Why It Matters for Timing

ALS presents differently depending on where it begins, and this determines when dysphagia becomes a concern.

Bulbar-onset ALS begins in the bulbar region of the brainstem — the area controlling speech and swallowing. Bulbar ALS affects approximately 25–33% of those diagnosed with ALS. Unlike limb-onset ALS, which first presents with arm or leg weakness, bulbar ALS initially manifests through speech and swallowing changes. For someone with bulbar onset, dysphagia may be the presenting symptom — it arrives early, sometimes before limb weakness is apparent at all.

Limb-onset ALS begins with arm or leg weakness. Dysphagia develops later as the disease progresses to involve the bulbar muscles. The prevalence of dysphagia during a mean follow-up of almost two years increased from 35.2% at diagnosis to 73.3% at final follow-up in spinal-onset patients, and from 94.7 to 98.2% in bulbar-onset patients.

Why this matters practically: If your loved one has bulbar-onset ALS, swallowing management needs to begin immediately — at or very shortly after diagnosis. Waiting for symptoms to become severe before seeking SLP involvement means losing the window when proactive management makes the most difference. If your loved one has limb onset, swallowing should be assessed at diagnosis even if no symptoms are present — literature suggests that dysphagia assessment may be appropriate before patients even present with bulbar symptoms.

The Early Signs — What to Watch For

In my experience with people in the earlier stages of neurodegenerative conditions, the swallowing signs that appear first are rarely dramatic. They are gradual, easy to attribute to something else, and easy to miss if you're not watching for them specifically.

The first signs I notice at the table:

Increased meal duration. What used to take 20 minutes now takes 40. The person is not dawdling — swallowing has become more effortful and slower, and the accumulated effort of a full meal is exhausting.

Throat clearing during or after meals. Not occasional — consistent, after almost every few bites or sips. The throat is clearing residue that the swallow isn't moving fully.

Coughing on thin liquids specifically. Water, juice, tea — the thin liquids that flow fastest — cause coughing while thicker foods are still managed. This is typically the first consistency affected in ALS.

A change in voice quality after eating or drinking. A wet, gurgly quality that wasn't there before the meal suggests liquid is resting on or near the vocal cords rather than clearing cleanly. Ask the person to speak after a sip of water and listen carefully for this.

Visible fatigue. The person manages the first half of a meal reasonably well and visibly tires in the second half — eating slowly, stopping more frequently, taking smaller portions toward the end. Swallowing muscle fatigue is real and measurable in ALS.

Avoidance of specific textures. Meats start disappearing from the plate. Bread is avoided. Hard raw vegetables are left. Sometimes the person has already adapted to the changes — but they will progress. The adaptation is a signal, not a resolution.

How ALS Dysphagia Progresses

Unlike post-stroke dysphagia, which often plateaus or improves, ALS dysphagia follows a progressive course that moves through recognisable stages — though the speed varies significantly between individuals.

Early stage: Thin liquids cause occasional coughing. Meals take longer. Certain textures are avoided. Voice may be mildly wet after drinking. At this stage, texture modification is not yet prescribed, but the SLP should be involved.

Middle stage: Thin liquids require thickening. Solid foods need modification toward softer textures — Levels 6, then 5. Meals are significantly longer and more tiring. Weight loss may begin as caloric intake drops with reduced intake volume. Silent aspiration may begin — the cough reflex itself is weakening alongside the swallowing muscles.

Later stage: Significant texture modification required — Levels 4 or 3. At the end of a follow-up period, 63% of patients had modified food consistency, and 20.7% had undergone a PEG. Oral eating becomes unsafe or insufficient for adequate nutrition. The PEG tube conversation becomes clinically urgent.

End stage: Oral eating is comfort-based rather than nutritional. Small amounts of preferred foods or drinks for pleasure and connection rather than sustenance. The person's wishes about oral feeding at this stage should have been discussed and documented well before this point arrives.

The Saliva Problem — The Symptom Nobody Warns Families About

Of everything I have seen in caring for people with bulbar neurodegenerative conditions, the saliva problem is the one that surprises families most consistently and distresses the person most acutely.

With MND, you may experience problems with managing saliva and a weakened ability to cough. This manifests in two distinct and sometimes simultaneous ways:

Drooling (sialorrhea): The muscles that normally clear saliva from the mouth and swallow it continuously are weakening. The person is not producing more saliva than normal — they are swallowing it less effectively, so it pools and overflows. Drooling in an adult is deeply distressing from a dignity perspective. It is also clinically significant — saliva carries oral bacteria, and unswallowed saliva that drips or flows into the airway is a direct aspiration risk.

Thick, sticky mucus: Some people with ALS develop the opposite problem — saliva becomes thick and ropy rather than liquid, possibly from mouth breathing, reduced saliva production, or the interaction of medications. This thick mucus is hard to clear from the throat and can feel like choking on something that cannot be swallowed or coughed clear.

Practical Management for Drooling

Positioning: Upright posture and a slight forward head position reduce drooling by allowing gravity to assist with saliva clearance toward the back of the mouth rather than forward. Never reclined during alert periods.

Oral suction: A portable suction device allows caregivers to clear pooled saliva from the mouth before and after meals and during the night. This is standard equipment in ALS care and worth requesting early.

Oral hygiene: More frequent oral care — at least after every meal and before sleep — reduces the bacterial load of pooled saliva and directly reduces aspiration pneumonia risk.

Medication options: First-line therapies for excessive saliva are anticholinergic substances such as scopolamine or amitriptyline. Alternatively, sublingual application of atropine eye drops or glycopyrrolate can be considered. Botulinum toxin A injections into the salivary glands are available as second-line therapy for sialorrhea. These are prescribed and monitored by the neurologist — raise the saliva problem directly at the next neurology appointment. It is treatable and should not simply be endured.

Practical Management for Thick Mucus

Adequate hydration — within the prescribed IDDSI liquid level — is the most important management strategy for thick mucus. Dehydration makes the mucus thicker. Humidified air at night can help. Nebulised saline may be recommended by the respiratory team. Avoid antihistamines, which further dry secretions.

Energy Conservation — The Overlooked Priority

In ALS, factors that restrict adequate nutrition develop insidiously and progressively worsen. The functional consequences include choking, aspiration, weight loss, and dehydration.

What the clinical language doesn't fully capture is how exhausting eating becomes. Chewing, preparing a bolus, coordinating the swallow, managing saliva, clearing residue — every step requires muscular effort that is being progressively depleted by ALS. A meal that a healthy person completes effortlessly requires sustained, effortful work from someone with ALS. That work has a cost in energy that competes with everything else the person needs to do in a day.

Practical energy conservation strategies:

Smaller, more frequent meals. Three large meals exhaust the swallowing muscles by the end of each. Five or six small meals distributed through the day maintain intake without the fatigue that accumulates in a single long mealtime.

Eat when energy is highest. For most people with ALS, energy and muscle function are best in the morning and decline through the day. The largest and most nutritionally important meal of the day should be breakfast or lunch — not dinner, when fatigue is greatest.

Rest before meals. A short rest period before eating — 10–15 minutes of quiet activity — reduces the fatigue the person brings to the table. This sounds minor. In my experience, it makes a measurable difference to how much someone manages to eat.

Caloric density over volume. As eating becomes more effortful, the goal shifts from volume to density — every bite and every sip should carry as many calories as possible. This means full-fat dairy throughout, butter and cream in every savoury dish, smooth nut butters in smoothies, enriched milk in porridge and custard. Our Level 4 diet guide and Level 3 diet guide both cover fortification strategies in detail.

Soft, moist textures at every stage. Dry foods require more chewing effort and more swallowing attempts to clear. Every meal should be moist — sauces, gravies, creams, and stocks are not optional additions but clinical requirements.

Protect mealtimes from distraction. Conversation during eating diverts the cognitive attention that ALS patients need to manage swallowing safely. Calm, unhurried mealtimes without competing stimuli improve both safety and intake volume.

Texture Modification in ALS — A Moving Target

Unlike other dysphagia conditions where the IDDSI level may be stable for months or years, ALS requires regular reassessment — typically every three months — because the appropriate level changes as the disease progresses.

The first interventions in patients with ALS dysphagia include postural compensation maneuvers, swallowing techniques, and diet adjustments to adapt the consistency of foods and liquids to the patient's impairment.

The IDDSI level progression in ALS typically follows this pattern:

Level 7 (Regular) → Level 6 (Soft and Bite-Sized) → Level 5 (Minced and Moist) → Level 4 (Puréed) → Level 3 (Liquidised)

The speed of this progression varies enormously between individuals — some people move through these levels over years, others over months. Patients with a fast-progressing disease and with bulbar onset show statistically significant increased risk of dysphagia progression.

The most important practical implication: Do not wait until the current IDDSI level is clearly failing before requesting reassessment. By the time meals are consistently unsafe at the current level, the person has already been at risk for some time. Schedule SLP reviews at the cadence recommended — typically every three months — and request an earlier review if you notice any of the early warning signs described above.

The Weight Loss Problem — And Why It Matters Beyond Nutrition

Common problems in ALS include weight loss, poor appetite, swallowing and chewing difficulties, dehydration, constipation, thick saliva, and chest infections.

Weight loss in ALS is particularly serious for a reason that goes beyond general malnutrition. ALS already increases the body's metabolic rate — the disease itself burns calories at an elevated rate even in the absence of significant muscle activity. Combine this with reduced oral intake from dysphagia and the difficulty of eating sufficient calories from modified-texture foods, and significant weight loss is almost inevitable without proactive management.

PEG placement is one of only a few interventions noted to significantly impact survival in ALS. Several studies have documented that people with ALS who undergo PEG placement live, on average, approximately four months longer than those who do not — representing a 50% greater treatment effect than Riluzole, the only FDA-approved medication to treat ALS.

Monitor weight weekly. Report any loss of more than 2kg in a month to the multidisciplinary team immediately. Maintain caloric fortification at every meal. Request a dietitian referral if not already in place — a dietitian who specialises in ALS or neurodegenerative disease is the correct specialist, not a general community dietitian.

The PEG Tube — Having the Conversation Early

This is the section families consistently tell me they wished they had read earlier. The PEG tube conversation in ALS is not a crisis intervention — it is a proactive decision that has a clinical window, and that window closes.

The literature indicates that PEG surgery should occur before the individual is in the advanced stages of ALS or has excessively reduced forced vital capacity. The European Federation of Neurological Sciences guidelines suggest that individuals with worsening respiratory status should consider a PEG tube even in the absence of dysphagia, as once dysphagia develops, it may be too late for safe placement.

Why the window matters: PEG tube placement is a surgical procedure requiring sedation or anaesthetic. As ALS progresses, respiratory function declines. When respiratory function drops below a threshold — forced vital capacity (FVC) below approximately 50% of predicted — the anaesthetic risk of PEG placement becomes significantly higher. This means the decision about whether to have a PEG tube needs to be made while the person still has adequate respiratory function to tolerate the procedure safely.

PEG placement occurs more precociously in bulbar-onset than in spinal-onset patients — at a median of 19.3 months versus 29.7 months from symptom onset.

What a PEG tube does and doesn't do:

A PEG tube provides a direct route for nutrition, hydration, and medication into the stomach — bypassing the mouth and throat entirely. It does not prevent the person from eating or drinking by mouth. Many people with ALS continue to eat small amounts by mouth for comfort and pleasure after PEG placement, while using the tube for the nutritional intake they cannot safely manage orally.

A PEG tube does not cure or slow ALS. It does not prevent all aspiration — saliva aspiration continues regardless of tube feeding. What it does is maintain nutritional and hydration status during a period when oral intake alone is insufficient, and it removes the daily stress and safety risk of trying to eat enough through a compromised swallowing system.

What families resist and why:

The most common response I observe when PEG tubes are first raised is resistance — sometimes from the person with ALS, sometimes from the family, often from both. The tube feels like giving up. It feels like accepting that something is ending.

What I want families to understand is this: the window in which a PEG tube can be safely placed is time-limited by respiratory function. Delaying the decision past that window removes the option. Having a PEG tube placed before it is urgently needed gives the person time to adjust to it, time to continue oral eating alongside tube feeding, and time to make decisions about how they want to use it. Waiting until the tube is the only option removes all of that.

The conversation to have with the neurology team is: "At what point should we be discussing PEG tube placement, and what is the threshold of respiratory function we need to stay above for the procedure to be safely possible?"

The Multidisciplinary Team — Who Should Be Involved

Multidisciplinary clinics add 7.5 months of survival and cut 1-year mortality by 30%. This is one of the most significant clinical findings in ALS care — the team approach is not a nicety; it is a survival intervention.

The core team for ALS dysphagia management:

Neurologist — leads the overall ALS management, monitors disease progression, and prescribes and adjusts medications, including saliva management.

Speech-Language Pathologist (SLP) — assesses and manages swallowing function, prescribes IDDSI levels, recommends texture changes, conducts FEES or VFSS assessments. Swallowing difficulties should be assessed and regularly reviewed by a speech pathologist every three months.

Dietitian — monitors weight and nutritional status, calculates caloric and protein requirements, manages the transition between oral and tube feeding, and adjusts nutritional supplementation.

Respiratory team — monitors lung function including FVC, manages respiratory symptoms, advises on NIV (non-invasive ventilation), and provides input on PEG timing from a respiratory safety perspective.

Occupational therapist — provides adaptive equipment for mealtimes, including adaptive cutlery, plate guards, non-slip mats, and positioning equipment.

Palliative care team — involved from earlier in the ALS journey than in many other conditions, providing symptom management, advance care planning support, and emotional support for families. ALS is a terminal diagnosis, and palliative care involvement is appropriate and beneficial from diagnosis, not only at the end of life.

If your loved one is not connected to a specialist ALS multidisciplinary clinic, request a referral urgently. The survival benefit of specialist clinic involvement is one of the most robust findings in ALS research.

Advance Care Planning — The Conversation That Must Happen

ALS is one of the conditions where advance care planning is most clearly beneficial — and most consistently delayed by families who find the conversation too painful to initiate.

The decisions that need to be made and documented include:

Wishes about PEG tube feeding — does the person want a PEG tube, and under what circumstances? At what point would they want to stop tube feeding?

Wishes about oral feeding at end of life — comfort feeding (small amounts of preferred foods for pleasure rather than nutrition) is a clinically supported and compassionate choice at end of life. Does the person want this documented?

Resuscitation preferences — particularly important in ALS, where respiratory failure is the most common cause of death.

Communication preferences — as speech and swallowing are often affected together in bulbar ALS- decisions about communication aids may need to be made at the same time as decisions about eating.

These conversations are best had early — when the person still has full communication ability and can participate fully in the decisions about their own care. Once communication is affected, participating in these decisions becomes much harder. The palliative care team and the ALS clinic can provide structured advance care planning support.

What Makes ALS Different From Other Dysphagia Diagnoses — For Caregivers

I want to say something directly to the caregivers reading this, because caring for someone with ALS is a different emotional experience from caring for someone with post-stroke or dementia dysphagia — and it deserves to be named.

With stroke, there is often hope of recovery — and sometimes that hope is realised. With dementia, the progression is slow enough that each day is not obviously different from the last. With ALS, the trajectory is known and the pace, while variable, moves consistently in one direction.

This creates a specific kind of anticipatory grief — grieving losses before they fully arrive, while still being fully present for the life that remains. It is exhausting in a way that is different from other caregiving situations, and it can feel profoundly isolating because few people outside the ALS community fully understand it.

What I have observed in families doing this well is a common thread: they make decisions early, they ask for help from the multidisciplinary team rather than managing alone, and they find the ALS community — through organisations like the MND Association, ALS Association, or local ALS support groups — where the specific experience is understood and where practical advice comes from people who have lived it.

The mealtimes you create for someone with ALS — the effort you put into adapting recipes, modifying textures, managing the saliva problem, protecting their energy — matter. Not just clinically, but in the quality of the time you are spending together. A safe, comfortable mealtime that the person looks forward to is one of the most concrete things a caregiver can give. It is worth every effort it takes.

Quick Reference: Signs That Need Urgent SLP Review

Frequently Asked Questions

References

MND Australia. (2024). Dysphagia and nutrition in MND. https://www.mndaustralia.org.au/mnd-connect/for-health-professionals-service-providers/managing-symptoms/swallowing-nutrition-management

MND Association. (2026, January). Swallowing difficulties (7A). https://www.mndassociation.org/sites/default/files/public/2026-01/7A-Swallowing-difficulties.pdf

ALS-MND Connect. (n.d.). Nutrition and swallowing. https://www.als-mnd.org/support-for-pals-cals/clinical-care/nutrition-and-swallowing/

Dysphagia Cafe. (2025). Nutrition and feeding tube placement for people with ALS: Best practice in clinical decision making. https://dysphagiacafe.com/nutrition-and-feeding-tube-placement-for-people-with-als-best-practice-in-clinical-decision-making/

Fini, N., et al. (2022). Progression of oropharyngeal dysphagia in amyotrophic lateral sclerosis: A retrospective cohort study. Dysphagia. https://link.springer.com/article/10.1007/s00455-021-10346-9

Boentert, M., et al. (2021). Palliative care challenges of patients with progressive bulbar palsy. Frontiers in Neurology. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8497697/

Perry, S., et al. (2021). The current state and future directions of swallowing care in amyotrophic lateral sclerosis. PMC. https://pmc.ncbi.nlm.nih.gov/articles/PMC12352545/

Traynor, B. J., et al. (2025). Evaluation and management of dysphagia in ALS: A survey of SLP clinical practice. PMC. https://pmc.ncbi.nlm.nih.gov/articles/PMC7034365/

ALS United Rocky Mountain. (2026). The 7 stages of bulbar ALS: A comprehensive overview. https://alsrockymountain.org/the-7-stages-of-bulbar-als-a-comprehensive-overview-2/

American Speech-Language-Hearing Association. (n.d.). Adult dysphagia (Practice Portal). https://www.asha.org/practice-portal/clinical-topics/adult-dysphagia/