Peanut Allergy in Thailand
Food Risks & Thai Phrases

In this guide

The problem isn't just the pad thai

Pad thai is often served with crushed peanuts, and satay is normally served with a peanut-based sauce. Those risks are visible. The harder question is whether a stall or restaurant uses peanut oil, because the oil may not appear anywhere on the menu.

Whether a particular peanut oil is acceptable depends on your allergy and your clinician's advice. Some highly refined peanut oils have most peanut protein removed, while cold-pressed or crude oils retain protein and can cause reactions. At a Thai street stall, you may not be able to confirm which type is being used, so treat unverified oil as an unresolved risk.

The second issue is cross-contact. A busy stall using one wok may move from a peanut pad thai to your order with the same wok, spatula, or cooking surface. For someone with a history of severe reactions, that matters even if your dish contains no peanuts as an ingredient.

This is the peanut-specific Thailand guide: it covers preparation, dish risk, cooking oil, shared equipment, and communication. For fish sauce, shrimp paste, dried shrimp, and oyster sauce, use the hidden allergens in Thai food guide. For choosing an individual stall and reading risk in real time, use the Thailand street food allergy guide.

Before you arrive: what to prepare

Preparation makes the difference between a stressful trip and a manageable one. The basics:

• Carry your epinephrine auto-injector on your person, not in checked luggage or at the bottom of a daypack. Follow the manufacturer's storage instructions, especially in Thailand's heat and humidity.
• Get a written Thai-language allergy card. English explanations at street stalls can be misunderstood. A card that states your allergy in Thai and names both whole peanuts and peanut oil gives staff something specific to read. AllergyPass's peanut allergy card for travel includes Thai script for restaurant and street-stall situations. The Thai allergy card page shows what the finished card looks like, what it costs, and which formats it comes in.
• Know the word in Thai. The key phrase: แพ้ถั่วลิสงอย่างรุนแรง (pae thua lisong yang run raeng), severely allergic to peanuts. For peanut oil specifically: ไม่ใส่น้ำมันถั่วลิสง (mai sai nam man thua lisong).
• Check your travel insurance. Look for emergency treatment, pre-existing-condition exclusions, and medical evacuation. Keep the policy number and assistance contact somewhere you can reach them quickly.
• Pack backup food for unpredictable situations. On train journeys, long boat rides, or in remote areas, a few familiar peanut-free snacks can give you an option when safe food is unavailable.

High-risk dishes to know by name

These dishes deserve extra questions because peanuts are commonly used as an ingredient or garnish, or because preparation can vary by kitchen.

Dishes that tend to be lower risk

None of these is guaranteed safe: cooking oil, garnish habits, and cross-contact vary by stall and region. They are simply cleaner options to ask about first.

• Khao man gai, poached chicken with rice and ginger broth. No peanuts as an ingredient; be careful about the dipping sauces served alongside.
• Tom yum goong, prawn soup with lemongrass, galangal, and lime leaves. Peanuts are not standard, but confirm the recipe, garnishes, and preparation equipment.
• Khao pad (fried rice), rice with egg, vegetables, and protein. Peanuts are not standard, but ask about the oil and shared wok.
• Grilled fish or meat on skewers, simple preparations with fewer ingredients and more visible cooking.
• Jay (เจ) food, Buddhist vegetarian food often marked by a yellow flag. Jay food is not peanut-free by definition, so ask specifically about peanuts, peanut oil, and shared equipment before ordering.

How to communicate at restaurants vs street stalls

The approach needs to match the setting. A restaurant with a manager you can speak to is a different situation from a one-person street cart at peak hour.

At restaurants: Show your allergy card as soon as you sit down, before looking at the menu. Ask to speak with someone who knows the kitchen. Phrase requests specifically ("no peanuts and no peanut oil") not just "no peanuts." Ask whether the dish is cooked in the same wok as peanut dishes. A restaurant that takes the question seriously and responds with specifics (not just "yes, no problem") is a better bet.

At street stalls: Show the written Thai card. Ask whether the stall uses peanuts or peanut oil and whether the wok, spatula, or mortar is shared. If the vendor cannot confirm the ingredients or equipment, choose another stall. A single wok handling many dishes can make cross-contact difficult to avoid.

A note on "no problem": A quick verbal reassurance is not enough if staff have not checked the oil, sauce, and shared equipment. Show a written Thai card that states the severity, then ask the kitchen to confirm each risk separately. If the answer remains vague, choose another dish or venue.

From Bangkok: what I see at the stalls

I live in Bangkok and eat at street stalls most days. I don’t have a peanut allergy. I don’t eat pork or coconut, which for me is a preference rather than an allergy, so I have a smaller version of your conversation at almost every meal. This is what it has taught me.

Peanuts turn up far beyond pad thai. I have watched vendors crush peanuts and scatter them over dish after dish, often by habit, before anyone has asked. The oil is the part you don’t see: a lot of cooking here is done in peanut oil or soybean oil. So “no peanuts on top” only covers the garnish. Ask about the oil separately.

The words matter. I usually say ไม่เอา (mai ao), “I don’t want it.” That’s fine for a preference, but it sounds optional, and for an allergy it is the wrong phrase. The accurate one is กินไม่ได้ (gin mai dai), “I can’t eat it,” and for an allergy, แพ้ (pae), “allergic.” In practice, what works best for me is showing a card that lists coconut and pointing at what I don’t want. Vendors read it and follow it.

There is almost always one wok. Because I don’t eat pork, vendors clean the wok before they cook my chicken or beef. On many occasions I’ve asked for a separate wok, and they have tried to accommodate as far as they could. Two lessons there. Asking works more often than visitors expect. But what you usually get is the same wok cleaned out, not a dedicated one. If a trace of peanut can cause you a severe reaction, the choice of stall still matters more than the request.

Chiang Mai is the same conversation. The north has its own dishes, khao soi among them, but the allergens you need to ask about are largely the same as in Bangkok.

The four forms peanuts take in Thai cooking

Understanding each form makes it easier to know what to ask about. Requesting "no peanuts" addresses the garnish but not the oil, the paste, or the sauce. These four are distinct risks and need to be treated separately.

1. Peanut oil in the wok

This is the least visible and most difficult exposure to verify. Some Thai street stalls and wok-based restaurants may use peanut oil, but cooking-oil practices vary. Vendors may not advertise the oil, and it may not appear on a menu. At a busy stall with a single large oil container, swapping oils for one order may be impractical.

The allergy relevance depends on the oil type. Some highly refined peanut oils have most peanut protein removed, while cold-pressed or crude oils retain protein and can cause reactions. At a street stall, you may not know which type is being used. If you have a history of anaphylaxis, discuss how to handle unverified oil with your clinician.

Thai to show: ไม่ใส่น้ำมันถั่วลิสง (mai sai nam man thua lisong, no peanut oil)

2. Crushed peanuts as a garnish

This is the most visible form and the one most travelers focus on. Crushed or coarsely ground peanuts are scattered on top of a finished dish as standard presentation. "No peanuts on top" is the easy request, but it does not address the oil, the paste, or shared equipment. A vendor may remove the garnish while the dish is otherwise unchanged.

Dishes where this is standard: pad thai (almost always), some versions of khao soi, certain noodle soups, and some curry dishes in northern Thailand.

Thai to show: ไม่ใส่ถั่วลิสง (mai sai thua lisong, no peanuts)

3. Ground into curry paste or sauce

Some Thai dishes incorporate peanuts as a structural ingredient ground into the base. Massaman curry is one example: some traditional recipes contain peanuts in the curry paste, making them impossible to remove from the finished dish.

Satay sauce is peanut-based by definition: a thick sauce made from ground peanuts, coconut milk, and spices. It appears as the dipping sauce for satay skewers and is sometimes used as a sauce for noodle dishes.

Thai to show: แพ้ถั่วลิสงอย่างรุนแรง (pae thua lisong yang run raeng, severely allergic to peanuts)

4. Whole or crushed peanuts mixed directly into the dish

Some versions of som tam (green papaya salad) have peanuts pounded directly into the salad in the mortar, rather than added on top afterward. They cannot be removed once the dish is made. The same mortar may be used for multiple orders at a busy stall, so a version made without peanuts can still carry cross-contact risk.

Cross-contamination at street stalls

Even if a specific dish contains no peanuts as an ingredient, the cooking environment at a busy street stall can create cross-contact risk. One wok may handle multiple dishes in rapid succession, and the same spatula may move between orders. Peanut residue may remain on the cooking surface.

This does not mean all street food is off-limits for travelers with peanut allergies. It means the stall matters as much as the dish. A stall that specializes in one or two simple dishes, such as grilled meat, mango sticky rice, or fresh fruit, may be easier to assess than a multi-dish wok stall preparing pad thai alongside everything else.

If you have a history of anaphylaxis, the cross-contact risk at a busy multi-dish stall may be a real reason to choose another venue. Being clear about that limit is more useful than trying to negotiate every dish at the wok.

What to do if you have a reaction

If you suspect anaphylaxis, use your prescribed epinephrine auto-injector promptly and call Thailand Emergency Medical Services on 1669. Follow your clinician's emergency plan and seek hospital assessment even if symptoms begin to improve.

In an emergency, use the nearest appropriate emergency department rather than delaying care to reach a preferred hospital. See the Thailand emergency healthcare guide for current numbers and city-by-city options.

Keep your travel insurance documents accessible on your phone, not only your luggage.

Sources and medical guidance

• U.S. Food and Drug Administration: approaches to food-allergen thresholds, reviews evidence distinguishing highly refined peanut oil from crude peanut oil; individual advice should still come from your clinician.
• NHS: anaphylaxis, symptoms, prompt adrenaline use, emergency care, and the possibility of symptoms returning.
• Thailand National Institute for Emergency Medicine, official 1669 emergency medical service information.

Frequently asked questions

Does all Thai food have peanuts?

No. Peanuts are standard in pad thai garnish, satay sauce, many som tam versions, massaman curry and many panang pastes. Standard pad kra pao, pad see ew, khao pad, green curry and red curry don't include peanuts as an ingredient, but they may be fried in peanut or soybean oil and cooked in a wok shared with peanut dishes. Ask about the dish, the oil and the wok separately.

Can you travel Thailand with a severe peanut allergy?

It may be possible with active preparation and an individualized plan. Peanuts can appear as a garnish or sauce ingredient, some kitchens may use peanut oil, and cross-contact at street stalls is a genuine concern. Carry prescribed emergency medication, use a written Thai-language allergy card, choose venues carefully, and follow your clinician's advice about the level of risk you can accept.

Which Thai dishes tend to be lower risk for people with peanut allergies?

Lower-risk options may include khao man gai without peanut dipping sauce, plain jasmine rice, grilled meats without sauce, and fresh tropical fruit. Tom yum and other prepared dishes still need recipe and cross-contact confirmation. Ask what oil was used and remember that busy shared woks can remain a risk regardless of the visible ingredients.

How do you say peanut allergy in Thai?

The key phrase to show in writing: แพ้ถั่วลิสงอย่างรุนแรง (pae thua lisong yang run raeng), severely allergic to peanuts. For peanut oil specifically: ไม่ใส่น้ำมันถั่วลิสง (mai sai nam man thua lisong). A written card beats spoken requests at street stalls.

Is peanut oil used in Thai street food?

Some stalls and restaurants may use it, but there is no safe assumption about cooking oil from a dish name. Highly refined peanut oil has most protein removed; cold-pressed or crude oil retains protein and can cause reactions. Ask what oil is in use, and treat an unverified shared wok as a cross-contact risk. The section above on peanut oil in the wok covers this in detail.

Do Thai restaurants understand peanut allergy?

Staff awareness and kitchen procedures vary by venue. Tourist-facing restaurants may have more experience communicating with travelers, but that is not proof of allergen control. Busy street stalls and smaller restaurants may not distinguish between "removing the garnish" and "changing the cooking oil." A written card in Thai that specifies the allergy is severe helps make the question clear.