Nutritional Supplements for Dysphagia: What to Buy to Prevent Weight Loss
In our dysphagia and malnutrition guide we covered why weight loss is so common in dysphagia — and why it matters more than most caregivers realise. In our protein sources guide we covered the best protein sources at every IDDSI level.
This article covers the products. The specific supplements that close the gap between what someone with dysphagia can eat at Levels 3 and 4 and the caloric and protein targets their body actually needs — with honest notes on what each one is, how it works at different IDDSI levels, and what to look for when buying.
These are not miracle products. They are practical tools that meaningfully support nutritional status when food alone cannot reach the target. Used consistently and correctly, they make a real difference to weight maintenance, muscle preservation, and quality of life.
Why Supplements Are Needed in Dysphagia
The core problem is structural. Preparing food to IDDSI Level 3 or 4 requires adding liquid to achieve the right consistency — which dilutes the caloric density of every serving. Three modified texture meals per day, without deliberate fortification or supplementation, typically provide 1,000–1,400 kcal. The target for an older adult trying to maintain weight is 1,500–2,000 kcal or more.
The protein gap is equally significant. Managing dysphagia independently contributes to caregiver burden, potentially increasing burnout and nonadherence to clinical recommendations — and one of the first things to be quietly dropped is the careful attention to protein at every meal. The recommended target for older adults at malnutrition risk is 1.2–1.5g of protein per kilogram of body weight per day. Most dysphagia patients on modified texture diets achieve well below this without supplementation.
The supplements below address both gaps — calories and protein — across five categories: oral nutritional supplement drinks, compact high-protein supplements, unflavoured protein powder, enriched milk powder, and glucose polymer powder.
Before Buying: The IDDSI Question
Most oral nutritional supplement drinks are naturally IDDSI Level 0 (Thin) — they are thin liquids that pour freely and flow through a standard straw. For anyone prescribed Level 1, 2, 3, or 4 for liquids, these must be thickened before serving.
The objective of the present work was to characterise oral nutritional supplements in terms of IDDSI, to facilitate its implementation. The IDDSI scale was positively correlated with energy content, protein, fibre, and total fat. This means higher-protein, higher-calorie ONS products tend to be naturally slightly thicker — but still typically require thickening for Level 3 or above.
The rule before serving any ONS: test with the syringe flow test first. If the product naturally reaches the prescribed level — serve as is. If not — add a gum-based thickener, wait the full hydration time, and retest before serving. Our syringe flow test guide covers the testing process step by step.
Important: Gum-based thickeners are strongly preferred over starch-based for ONS products. Starch-based thickeners can be broken down by the amylase in some ONS formulations, causing the consistency to thin out over time. SimplyThick or Nutilis Clear are the most consistent options for thickening supplement drinks.
Category 1: Oral Nutritional Supplement Drinks
These are the primary category — ready-to-drink, high-calorie, high-protein drinks prescribed by dietitians when food intake alone cannot meet nutritional targets. They supplement what the person is already eating — they are not meal replacements.
Ensure Plus — The Most Widely Available ONS
Buy on Amazon — Standard
Buy on Amazon — Vegan / Lactose-Free version
Per 200ml serving: 300 kcal — 12.5g protein — 27 vitamins and minerals
Ensure Plus is the most widely recognised and prescribed ONS globally — available from pharmacies, hospitals, and online, in a wide range of flavours. Each 200ml bottle provides 300 kcal at 1.5 kcal/ml, making it one of the most calorie-dense convenient drinks available for someone who cannot manage large volumes.
IDDSI level: Level 0 (Thin) as supplied. Must be thickened to the prescribed liquid level before serving. Use a gum-based thickener — follow the manufacturer’s instructions for the prescribed level and verify with the syringe test.
Who it suits: Anyone with dysphagia who is losing weight or failing to meet caloric targets through food alone. Particularly useful as a between-meal supplement — one bottle between breakfast and lunch, and one between lunch and dinner, adds 600 kcal and 25g of protein to the day’s intake without requiring the person to eat more at mealtimes.
Vegan / lactose-free version: The plant-based and lactose-free variant uses a soy and corn-based formula. Nutritional profile is similar to the standard version. Important for anyone with dairy intolerance or lactose sensitivity — which is common in older adults and often undiagnosed.
Flavour tip: Flavour acceptance is one of the most consistent clinical challenges with ONS. The standard Ensure Plus comes in banana, chocolate, strawberry, vanilla, and neutral. Try the neutral flavour first — it has the least intrusive taste and accepts additional flavouring (a teaspoon of honey, a few drops of vanilla extract) better than the pre-flavoured versions. If one flavour is refused, try another before concluding the product is not tolerated.
Compact Protein — Highest Protein in the Smallest Volume
Per 125ml bottle: 300 kcal — 18g protein — 2.4 kcal/ml
Compact Protein is in a different category from standard ONS in one specific way: 18 grams of protein in a 125ml bottle. This is the highest protein density per millilitre of any commercially available ONS — and the smallest serving volume that still delivers a full 300 kcal.
For someone who can only manage small volumes — fatigue at meals, early satiety, end-stage disease — Compact Protein delivers more nutritional impact per teaspoon than any other product in this guide.
IDDSI level: Level 0 (Thin) as supplied. Thicken with gum-based thickener to the prescribed liquid level and verify before serving.
Who it suits particularly well:
- Anyone at late-stage dysphagia where volume tolerance is very limited
- Anyone with cancer-related dysphagia where appetite is severely suppressed
- Anyone who consistently refuses to finish a standard 200ml ONS bottle — the smaller 125ml volume is more achievable
- Anyone where protein targets are not being met despite adequate caloric intake
The protein calculation: One bottle of Compact Protein per day provides 18g of protein — approximately one quarter of the 72g daily target for a 60kg person at malnutrition risk. Two bottles contribute 36g — half the daily target from supplementation alone, before food is counted.
Note: Compact Protein should be used under medical supervision and is ideally prescribed by a dietitian — it is a Food for Special Medical Purposes. It is available online, but raising it with the GP or dietitian may make it available on prescription, which is significantly more cost-effective.
Category 2: Unflavoured Protein Powder — For Adding to Food and Drinks
Per scoop (approximately 25g): approximately 20–25g protein — approximately 100 kcal
Unflavoured whey protein powder is the most versatile and cost-effective protein supplementation tool available for dysphagia home care. Unlike the ONS drinks above — which need to be thickened and served as a separate drink — protein powder dissolves into existing food and drink without significantly altering flavour or consistency.
How to use it at each IDDSI level:
Level 3 and Level 4 foods: Stir one scoop into smooth soup, custard, porridge, or puréed fruit before serving. The powder dissolves completely in warm food. Verify the IDDSI consistency after adding — protein powder can occasionally slightly thicken a Level 3 dish. If the consistency has shifted, add a small amount of warm liquid and retest.
Thickened drinks: Dissolve one scoop in a small amount of warm liquid first, then add to the drink before thickening. Adding powder directly to a thickened drink risks clumping.
Porridge and semolina: The most natural vehicle — one scoop per serving adds 20–25g of protein to a meal that would otherwise provide 5–7g. Used alongside enriched milk (see below), morning porridge can deliver 30–35g of protein before the rest of the day begins.
The unflavoured requirement: Flavoured protein powders — vanilla, chocolate, strawberry — significantly affect the taste of food they’re added to. Unflavoured powder is neutral enough to add to savoury dishes without changing the flavour. This is the most important characteristic to check before buying.
IDDSI safety note: Always verify the consistency of any food after adding protein powder — especially at Level 3. The powder does not create lumps when fully dissolved, but it does add body to thin dishes.
Category 3: Milk Powder — The Most Underused Fortification Tool
Standard Full-Fat Milk Powder - Buy on Amazon
Lactose-Free Milk Powder - Buy on Amazon
Per 4 tablespoons (approximately 30g) added to 568ml full-fat milk: approximately doubles the protein content — approximately 14–16g additional protein per pint
Dried skimmed milk powder stirred into full-fat milk is the simplest, cheapest, and most consistently underused nutritional fortification strategy in dysphagia home care. The resulting enriched milk contains approximately double the protein of standard full-fat milk — without changing the appearance, flavour, or consistency of the milk in any meaningful way.
How to make enriched milk: Add 4 level tablespoons of dried skimmed milk powder to one pint (568ml) of full-fat milk. Stir or shake until fully dissolved. Use this as the liquid base for everything that normally uses milk.
Where to use enriched milk:
- Porridge and hot cereals — the single biggest daily protein gain available
- Semolina and custard
- Smooth soups with a dairy base
- Hot drinks (thickened to prescribed level)
- As the thickening liquid for ONS drinks if appropriate
IDDSI effect: Enriched milk is slightly thicker than standard full-fat milk due to the higher protein and lactose content. This is usually negligible — but if using as a liquid base for a Level 3 dish, verify the final consistency before serving.
The lactose-free version: For anyone with lactose intolerance — common in older adults — the lactose-free milk powder version delivers the same protein fortification benefit. The flavour profile is slightly sweeter due to the pre-hydrolysed lactose.
Cost comparison: Milk powder is significantly cheaper per gram of protein than any ONS drink. For a household managing dysphagia on a tight budget, enriched milk is the highest-value nutritional intervention available.
Category 4: Glucose Polymer Powder — Calories Without Taste
Per 100g: approximately 380 kcal — 0g protein — 0g fat
Glucose polymer powder — is a tasteless, odourless, colourless powder that dissolves completely in any food or drink without affecting flavour, texture, or IDDSI consistency. It provides concentrated calories with essentially no other macronutrients.
This is the supplement for the specific situation where: caloric targets are not being met, protein targets are being met adequately through food and protein powder, and adding more protein would be clinically inappropriate (for example, in someone with renal disease where protein is restricted). It is also useful when the priority is pure caloric density — adding significant calories to a small volume of food without changing anything else about that food.
How to use it:
Stir directly into any food or drink — hot or cold. Dissolves in approximately 30 seconds with stirring. No clumping, no change in appearance.
Level 3 and 4 foods: Add to smooth soups, custard, puréed fruit, and porridge. Has no effect on IDDSI consistency at standard doses — one to two tablespoons per serving is the typical range.
Thickened drinks: Dissolve in a small amount of warm liquid first, then add to the drink before thickening. The powder does not affect gum-based thickener performance.
Caloric contribution: One tablespoon (approximately 15g) adds approximately 57 kcal. Four tablespoons per day — easily distributed across three meals — adds approximately 228 kcal to daily intake without the person noticing any change in what they’re eating.
Who it suits most:
- Anyone where caloric targets consistently cannot be met despite food fortification and protein powder
- Anyone where renal disease restricts additional protein intake
- Anyone who refuses ONS drinks entirely — glucose polymer can be added invisibly to preferred foods
- Late-stage dysphagia where volume tolerance is extremely limited and every mouthful needs to count calorically
Important: Available on prescription in many healthcare systems under the name Polycal (Nutricia) or Maxijul (SHS/Nutricia). Raising it with the dietitian or GP may make it available without cost.
Daily Supplement Plan — How to Use These Together
These supplements work best when built into a consistent daily routine rather than used ad hoc. Here is a practical daily framework that uses all five categories:
| Time | Supplement | Protein Added | Calories Added |
|---|---|---|---|
| Breakfast | Porridge made with enriched milk + 1 scoop unflavoured protein powder | 30–35g | 150–200 kcal |
| Mid-morning | 1 bottle Ensure Plus (thickened to prescribed level) | 12.5g | 300 kcal |
| Lunch | Glucose polymer added to main dish | 0g | 57–115 kcal |
| Afternoon | 1 bottle Fortisip Compact Protein (thickened) | 18g | 300 kcal |
| Dinner | Glucose polymer added to main dish or custard | 0g | 57–115 kcal |
| Total from supplements | 60–65g protein | 860–1,030 kcal |
Combined with food intake across three meals, this framework reliably approaches or exceeds the 1.2–1.5g/kg protein target and the 1,800–2,000 kcal caloric target for most weight-maintaining older adults with dysphagia.
Not everyone needs all five products simultaneously. Start with the enriched milk — it is the cheapest and most impactful first step. Add protein powder if protein targets remain low. Add ONS drinks if caloric targets remain low. Add glucose polymer if caloric targets still cannot be met with the other interventions.
Quick Reference — Which Supplement for Which Problem
| Problem | First-Line Supplement | Notes |
|---|---|---|
| Not meeting caloric target despite eating well | Ensure Plus | Thicken to prescribed liquid level |
| Very small volume tolerance | Fortisip Compact Protein | 125ml delivers 300 kcal + 18g protein |
| Not meeting protein target | Unflavoured protein powder | Add to porridge, soup, custard |
| Want to fortify all milk-based dishes at once | Enriched milk powder | Replace standard milk throughout the day |
| Renal disease — protein restricted but calories low | Glucose polymer | Calories only — no protein |
| Lactose intolerance | Ensure Plus plant-based + lactose-free milk powder | Both dairy-free |
| Refusing all supplement drinks | Glucose polymer + protein powder in food | Added invisibly to existing meals |
Frequently Asked Questions
Do I need a prescription for these supplements?
The milk powder and glucose polymer are available without prescription. Ensure Plus and Compact Protein are available online without prescription but are also prescribable — raising them with the GP or dietitian may make them available at significantly lower or no cost, depending on your healthcare system. Unflavoured protein powder is a general food supplement available without any prescription.
Can I use these supplements instead of meals?
No — supplements are designed to supplement food intake, not replace it. Meals provide fibre, micronutrients, and the psychological and social experience of eating that supplements cannot replicate. ONS drinks can be used as sole nutrition sources in specific clinical circumstances under dietitian supervision — but for home caregiving, they work best alongside food.
Can ONS drinks be mixed with food rather than served as drinks?
Yes — and this is a useful approach for anyone who refuses all supplement drinks. Ensure Plus stirred into smooth porridge or custard, or Compact Protein blended into a smooth soup, delivers the same nutrition without requiring the person to accept them as drinks. The consistency of the dish will change — verify the IDDSI level after incorporating any ONS.
How do I know if the supplements are working?
Weekly weighing is the most reliable indicator. Stable weight — not declining — is the primary goal of supplementation in dysphagia management. Improvement in energy levels, reduced fatigue at mealtimes, and stabilisation or improvement of muscle bulk over weeks are secondary indicators. If weight continues to decline despite consistent supplementation, request a dietitian review.
Will glucose polymer cause blood sugar problems?
Glucose polymer is a carbohydrate and will raise blood glucose. For anyone with diabetes, discuss glucose polymer supplementation with the GP or dietitian before starting — the dose and timing may need to be managed alongside diabetes medication.
Will glucose polymer cause blood sugar problems?
Glucose polymer is a carbohydrate and will raise blood glucose. For anyone with diabetes, discuss glucose polymer supplementation with the GP or dietitian before starting — the dose and timing may need to be managed alongside diabetes medication.
Is whey protein powder safe for people with kidney disease?
High protein intake can stress impaired kidneys. For anyone with diagnosed renal disease, discuss all protein supplementation — food and supplements — with the GP or nephrologist before starting. Glucose polymer (calories without protein) may be the more appropriate supplement for this group.
References
Shimizu, A., Yamaguchi, K., & Maeda, K. (2024). Editorial: Malnutrition in dysphagia — nutritional assessment and management in clinical practice. Frontiers in Nutrition. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11148459/
Maia, I., et al. (2025). Determination of the IDDSI level of commercially available oral nutritional supplements. Clinical Nutrition ESPEN. https://www.sciencedirect.com/science/article/pii/S2405457725001147
Nutricia. (2026). Fortisip Compact Protein product information. https://nutricia.com.au/fortisip/product/fortisip/
Abbott Nutrition. (2026). Ensure Plus product information. https://www.abbottnutrition.com/our-products/ensure-plus-nutrition-shake
ESPEN Expert Group. (2014). Protein intake and exercise for optimal muscle function with aging. Clinical Nutrition. https://www.espen.org/files/PIIS0261561414001113.pdf
American Speech-Language-Hearing Association. (n.d.). Adult dysphagia (Practice Portal). https://www.asha.org/practice-portal/clinical-topics/adult-dysphagia/
