Dysphagia Knowledge Hub — 吞嚥困難知識庫

Thickener Selection Guide for Philippine Patients — Starch vs Gum vs Xanthan

TL;DR: Gum-based thickeners (xanthan, guar) are better for Philippine climate — they stay stable in heat/humidity and don’t change taste. Starch thickeners are cheaper but break down easily. Available in PH: Nestlé ThickenUp (via Lazada/Digitindahan) and Unilab Smooth (local brand). Buy from hospital pharmacies for best quality and advice. Always check IDDSI level on the label.

What Is a Food Thickener and Why Do Dysphagia Patients Need One?

A food thickener is a powder you mix into liquids (juice, broth, water, milk) or soft foods to make them thicker and slower to swallow. When someone has dysphagia — difficulty swallowing — their throat muscles may not work fast enough to stop thin liquids from going into the lungs instead of the stomach. A thicker liquid gives their muscles extra time to react and protect the airway.

The International Dysphagia Diet Standardisation Initiative (IDDSI) created a standard system with 8 thickness levels (0–7). Thickeners help patients move from thinner levels (like thin liquids) to a safer thickness level recommended by their doctor or speech-language pathologist (SLP).

Main Types of Thickeners: Starch vs Gum

There are two main families of food thickeners used in the Philippines:

Type 1: Starch-Based Thickeners (Modified Maize/Tapioca Starch)

What they are: Made from corn or tapioca starch that has been chemically modified to thicken liquids quickly without clumping.

Pros:

Cheapest option — usually ₱300–500 per 100–200g container (retail)
Easy to find in regular drugstores
Work quickly at room temperature
Familiar taste to Filipino families

Cons:

Taste changes — can make juice taste starchy or grainy
Break down over time — if left in a cup for >2–3 hours, they thin out again (especially in hot weather)
Temperature sensitive — lose thickness when heated or chilled; can separate and become watery
Glycemic impact — some contain added glucose, risky for diabetic patients
Don’t work well in acidic drinks — lemon juice, orange juice, vinegar-based broths can break down starch thickeners

Best for: Budget-conscious families, short-term use (single meals), room-temperature foods only.

Type 2: Gum-Based Thickeners (Xanthan Gum, Guar Gum, Locust Bean Gum)

What they are: Natural or semi-synthetic gums extracted from seeds or bacteria. Most common in clinical settings: xanthan gum (most stable), guar gum (cheaper), locust bean gum (slower acting).

Pros:

Temperature stable — work at hot or cold temperatures without thinning
Never break down — stay thick for hours, even at room temperature in hot Philippine weather
Neutral taste — no starchy flavor; juice tastes like juice
Work in acidic drinks — safe for citrus, tomato, vinegar-based broths; won’t separate
Diabetic-friendly — no glucose impact
Humidity resistant — don’t clump or absorb moisture in tropical climate
Precise IDDSI levels — easy to dial in exactly the thickness level the doctor ordered

Cons:

More expensive — ₱600–1,500 per 125g (international brands); local brands may be cheaper
Less familiar to families; may require SLP or nurse guidance first
Take 1–2 minutes longer to thicken (need to stir well)
Some brands have slight vanilla or neutral flavor added

Best for: Long-term care, tropical climate (Philippines heat/humidity), patients on multiple medications (temperature-sensitive), diabetics, quality of life (taste preservation), precise IDDSI compliance.

Why Tropical Climate Matters for Thickener Choice in the Philippines

The Philippines has a tropical climate with high humidity (70–90%) and temperatures 25–35°C year-round. This creates two problems for thickeners:

Problem 1: Heat & Humidity Breakdown

Starch thickeners suffer in heat. When a patient’s meal sits at room temperature in the afternoon heat (or in a warm room without air conditioning), starch-based thickeners can:

Lose thickness and separate back into thin liquid within 1–2 hours
Become grainy or clumpy as moisture is absorbed
Taste worse as temperature changes

Gum-based thickeners (especially xanthan) stay stable. Research shows xanthan gum maintains its thickness across temperatures (even 25–35°C) and doesn’t absorb moisture from humid air. This is critical in rural areas or homes without refrigeration.

Problem 2: Storage & Shelf Life

Starch powders in tropical climates:

Can absorb moisture and clump in 3–6 months if not in a sealed container
May develop mold if stored in humid bathrooms or kitchens
Lose effectiveness faster than gum powders

Gum powders stay dry and effective longer because they don’t absorb humidity the same way. Xanthan gum can remain stable for 2+ years if stored in an airtight container in a cool, dry place.

Recommendation for Philippines: If you live outside air-conditioned areas or in provinces with high humidity, choose gum-based thickeners even if they cost more — they’ll last longer and work better.

Thickener Products Available in the Philippines (2025–2026)

International Brands

Nestlé ThickenUp Clear (125g or 227g)

Where to buy: Lazada Philippines, Ubuy Philippines, Digitindahan.com.ph, some major hospital pharmacies
Type: Xanthan gum + starch blend
IDDSI levels: Can make Levels 1–4 depending on ratio
Estimated price: ₱800–1,200 per 125g (retail online)
Pros: Transparent (good for presentation), internationally recognized, hospitals stock it
Cons: Imported, expensive, may need to order online; shipping time 3–7 days

Nestlé Resource ThickenUp (original, not Clear)

Type: Starch-based
Where to buy: Same as above
Estimated price: ₱600–900 per 227g
Pros: Cheaper than Clear version, widely available
Cons: Affects taste, less stable in heat than Clear version

Philippine Brands

Unilab Smooth (Instant Food & Drink Thickener)

Manufacturer: Unilab, Inc. — major Philippine pharmaceutical company
Where to buy: Shopee Philippines, some hospital pharmacies, may need special order from pharmacies
Type: Not clearly specified as starch vs gum; likely starch-based or starch+gum blend
Estimated price: ₱1,000–1,500 per container (based on marketplace listings)
Pros: Local brand, may be available faster than imports, supports local manufacturing
Cons: Less information available on exact composition; limited distribution outside NCR

Hospital Pharmacies (Recommended Source)

The safest place to buy thickeners in the Philippines is a hospital pharmacy at major medical centers:

Medical City Makati
Makati Medical Center
St. Luke’s Medical Center (QC and BGC)
Philippine Heart Center (East Avenue, QC)
UP-PGH (Philippine General Hospital)
East Avenue Medical Center
Ospital ng Maynila

Why hospitals:

Pharmacists can advise which IDDSI level to order based on your doctor’s prescription
Products are guaranteed authentic (no counterfeits)
Can access brands that may not be on retail shelves
Some hospitals stock samples for patients to try before buying large quantities
Often have SLPs or dietitians on staff who can demonstrate how to mix it

Cost at hospitals: Usually ₱50–200 MORE than online retail, but worth it for expert guidance.

How to Choose the Right Thickener for Your Patient

Ask These 5 Questions:

1. What IDDSI level did the doctor order?

If Level 1–2 (slightly thick): Starch thickeners work fine
If Level 3–4 (moderately to extremely thick): Gum works better and lasts longer
If not sure, ask the SLP or doctor for a written prescription with the exact IDDSI level

2. How long will the patient use a thickener?

Short-term (< 3 months, e.g., recovering from stroke): Starch is OK
Long-term (> 6 months, e.g., Parkinson’s, dementia): Gum is worth the cost

3. Does the patient have diabetes?

YES → Use gum thickeners (xanthan, guar) — no glucose
NO → Either type is fine

4. Where will the patient eat meals?

Air-conditioned home or hospital: Either type
Warm, humid home (no AC): Choose gum — stays stable in heat
Outdoor or changing temperatures: Gum only

5. Budget?

Very tight budget (< ₱500/month): Starch is your choice
Moderate budget (₱500–1,000/month): Buy gum for long-term care, starch for emergency backup
Can afford premium care: Xanthan gum blend (like ThickenUp Clear) for best taste + stability

Mixing and Storage Tips for the Philippine Climate

How to Mix Thickener Correctly

1. Use clean, room-temperature liquid first

Pour ½ cup of juice, broth, or water into a cup
Add ONE teaspoon of powder (check package for exact amount)
Stir vigorously for 30–60 seconds until smooth — no lumps

2. Let it sit for 1–2 minutes

Gum thickeners especially need time to activate
Stir again before serving

3. Add to the rest of the liquid

Once smooth, pour into the full cup or bowl
Stir gently

4. Serve immediately

Best thickness is achieved in first 10–30 minutes
Starch thickeners will thin after 2–3 hours in warm weather
Gum thickeners stay thick for 4+ hours

Storage in Tropical Heat

DO:

Store in airtight containers (not the original paper package)
Keep in a cool, dry place (pantry, bedroom closet, NOT kitchen near stove)
Use desiccant packets (silica gel) — ask hospital pharmacist for extra ones
Label the container with: thickener name + expiration date + purchase date
Keep away from sunlight (use opaque containers if possible)

DON’T:

Leave open containers in the kitchen (humidity + heat = clumping)
Store in the bathroom (moisture from showers)
Refrigerate powder (temperature changes can cause condensation)
Mix in bulk “to save time” — mixed thickener loses effectiveness over hours

Common Mistakes Philippine Families Make

Mistake 1: Using Regular Cooking Starch or Cornstarch

What people do: Buy food-grade cornstarch (Maizena) from the grocery, thinking it’s the same as a dysphagia thickener.

Why it’s wrong:

Unmodified cornstarch requires cooking to activate — just adding to cold liquid won’t work
No IDDSI level guarantee — inconsistent thickness
Higher glycemic impact
Doesn’t dissolve smoothly; stays grainy

Right way: Buy labeled dysphagia thickener products only. The word “modified starch” or “instant” on the package is key.

Mistake 2: Mixing Thickener in Instant Noodle Broth or Very Hot Liquid

What people do: Pour powder directly into a bowl of 90°C hot lugaw or broth.

Why it’s wrong:

Starch clumps immediately in extreme heat; becomes lumpy, hard to swallow
Some thickeners (especially gums) can scald if too hot
Temperature too high to swallow safely immediately after mixing

Right way:

Let the hot liquid cool to 40–50°C (comfortably warm, test with finger)
Mix powder in a cool liquid first, then add to warm food
OR buy thickeners designed for hot foods (some brands specify this)

Mistake 3: Assuming All Thickeners Are the Same IDDSI Level

What people do: Buy any thickener, assume it makes Level 4, and give to patient without checking.

Why it’s wrong:

One teaspoon of Thickener A might make Level 3; one teaspoon of Thickener B might make Level 5
Wrong thickness can cause aspiration or choking
Different brands have different thickening power

Right way:

The label should say the IDDSI level when mixed as directed (e.g., “Makes IDDSI Level 3 with 1 tsp per 250ml”)
If label doesn’t say, ask the pharmacist or SLP
Always follow the package instructions exactly

Mistake 4: Not Stirring Long Enough

What people do: Add thickener, stir for 5–10 seconds, then serve.

Why it’s wrong:

Powder settles at the bottom; patient swallows thin liquid first, thick sludge last
Inconsistent thickness means patient may aspirate

Right way:

Stir for at least 30–60 seconds for gum thickeners
Stir another 10–15 seconds after sitting for 1 minute
Stir again before each sip or spoonful

Mistake 5: Reheating Thickened Liquid

What people do: Mix thickener into broth, refrigerate, then reheat the next day.

Why it’s wrong:

Starch breaks down completely with reheating (becomes thin again)
Gums can separate if reheated multiple times
Consistency is unpredictable

Right way:

Mix fresh thickener for each meal — don’t store mixed thickener
If reheating is necessary (e.g., lugaw cooled overnight):
- Reheat the liquid WITHOUT thickener
- Let it cool slightly
- Mix thickener fresh before serving

Thickener Costs: Quick Comparison

Product	Size	Est. Price (PH)	Cost per Serving	Type
Unilab Smooth	500g container	₱1,000–1,500	₱3–5/serving	Local, starch likely
Nestlé ThickenUp (regular)	227g	₱600–900	₱5–8/serving	Starch+gum blend
Nestlé ThickenUp Clear	125g	₱800–1,200	₱8–12/serving	Xanthan+starch, transparent
Hospital pharmacy generic	100g	₱400–800	₱4–8/serving	Varies (ask staff)

Most cost-effective for long-term care: Buy from hospital pharmacy; ask if they have a “generic” thickener or bulk discounts for regular customers. Some hospitals offer 10–15% discount for patients on standing orders.

When to Ask Your SLP or Doctor

Call your speech-language pathologist or doctor if:

Patient chokes or coughs during or after meals after starting thickener
Thickener is making the patient refuse to eat (taste problem) — try a different brand
You’re unsure of the right IDDSI level
Patient has new symptoms like constipation (starch can cause this)
Thickener clumps or separates no matter how much you stir
You’re moving to a new house without air conditioning — ask about gum-based alternatives

Find an SLP in your area:

Philippine Association of Speech Pathologists (PASP): pasp.org.ph — has member directory
Major hospitals: All have speech therapy departments; ask for a referral
PhilHealth stroke units: Most publicly funded hospitals have on-site SLPs

Citations and Sources

Cichero JAY et al. (2017). “International Dysphagia Diet Standardisation Initiative (IDDSI) — Framework for Standardised Labelling of Food and Fluids.” Dysphagia, 32, 293–314. https://doi.org/10.1007/s00455-017-9783-5
Effect of Thermal Processing on Flow Properties and Stability of Thickened Fluid Matrices. Polymers, 13(1), 162 (2021). https://www.mdpi.com/2073-4360/13/1/162
ScienceDirect. “Effect of temperature on thickness of starch- and gum-based thickened liquids for dysphagic individuals.” https://www.sciencedirect.com/science/article/pii/S2667025922000231
Nestlé Health Science Philippines. ThickenUp Clear Product Information. https://www.nestlehealthscience.ph/brands/thickenup-clear
Unilab, Inc. Smooth Instant Food and Drink Thickener Product Page. https://www.unilab.com.ph/products/smooth
Philippine Association of Speech Pathologists. About PASP. https://pasp.org.ph/page-18378

This article paraphrases publicly-available dysphagia management guidelines and IDDSI standards. For clinical practice and thickener prescription, refer to current guidance from your doctor or SLP. This page is not medical advice.

Last updated: 2026-05-20 · License: CC BY 4.0 · Maintained by SeniorDeli (Carewells) — a Hong Kong social enterprise producing IDDSI-compliant care food for people living with dysphagia. This page is educational only; see About for our clinical partners and social mission.