Is Idiyappam (Noolputtu, Sevai) Good for Diabetes?

IN MODERATION

Idiyappam sits in moderation for diabetes. It is refined rice flour steamed with water and salt, and no oil goes into it at all — which is a genuine advantage over porotta or dosa. Count it like rice, not like a free food: three or four small idiyappam at a meal, with a real curry.

Answered by Dr. Dante Ruskin · Diabetologist & Intensivist

The noodle is rarely the problem; the number of them and what is poured over them is. Sweetened thenga paal turns breakfast into dessert, adding roughly four teaspoons of sugar a bowl. Take vegetable stew, kadala or egg curry instead, and ask for a three-set rather than a five.

Is idiyappam a safe breakfast for a sugar patient?

It is a reasonable one, and it is not a free one. The argument I hear most often at the Marthandam OP is “doctor, idiyappam-il ennai illai” — there is no oil in it — and that part is entirely true. Nothing is fried, nothing is laminated with fat, and the whole dish is flour, water, salt and steam. That makes it a better plate than porotta and beef fry by a wide margin. But the flour underneath is milled white rice flour, which is about 80 g of carbohydrate and barely 2 g of fibre per 100 g (USDA FoodData Central, ‘Rice flour, white, unenriched’). Removing the oil removes calories and saturated fat; it does not remove a single gram of starch. ICMR-NIN’s 2024 dietary guidelines ask that cereals stay under about 45% of the day’s energy and that refined cereals give way to whole grains — and idiyappam is squarely a refined cereal. So the verdict is moderation, and the whole page is really about one question: how many.

How much carbohydrate is in one idiyappam?

This is where idiyappam quietly gets people. The pieces are light, they look like nothing on the leaf, and five of them disappear before you have thought about it. Work it out from a standard published recipe — 130 g of rice flour pressed into twelve idiyappam — and each small piece comes to roughly 11 g of carbohydrate and about 55 kcal (recipe-card arithmetic, Vegrecipesofindia; treat all figures below as estimates, since hotel pieces run larger than home ones).

What is on the leafCarbohydrate, estimateRoughly the same as
3 small idiyappam, plain~33 g¾ cup cooked rice
5 small idiyappam, plain~55 g1¼ cups cooked rice
3 idiyappam + vegetable stew~38 g¾ cup rice with a vegetable
3 idiyappam + kadala curry~48 g1 cup rice with dal
3 idiyappam + sweetened thenga paal~50 g, of which ~17 g is free sugarrice plus four teaspoons of sugar
4 hotel-size idiyappam + egg curry~65–70 g1½ cups rice

Read the last two rows together and you have the whole argument. The difference between a good idiyappam breakfast and a poor one is not the noodle. It is two extra pieces and a sweet bowl.

What does the glycemic index actually say about string hoppers?

Less than the internet claims, and the honest answer is that the published numbers disagree. A small Kerala study of thirteen local breakfast foods (11 healthy volunteers, incremental-area-under-curve method) placed idiyappam, puttu, idli and chapathi in the moderate GI band, with tapioca high and parotta deceptively low. A Northern Sri Lankan study of traditional foods (20 volunteers, Endocrinology & Metabolic Syndrome, 2015) measured string hoppers at GI 50.0 ± 7.1. Yet a later report in the Journal of the Ceylon College of Physicians (2019) concluded that string hoppers “irrespective of flour variety elicit a high GI even when given with many accompaniments.” Three studies, three answers. That is not a scandal — GI is measured in small groups of healthy volunteers on a fixed 50 g carbohydrate dose, and real breakfasts vary in flour, thickness and how long the pieces sat. The lesson for a patient is practical: stop hunting for idiyappam’s GI number and count the pieces, because glycemic load is the part you actually control. The glycemic index explained page sets out why.

Coconut milk and sugar — the pairing that undoes it

The traditional Malabar way of eating idiyappam is with coconut milk and sugar, and Kerala-border households here do the same at Sunday breakfast and on Christmas morning. Unsweetened thenga paal is genuinely fine: coconut fat slows gastric emptying, so the same starch arrives more gently, and the meal feels finished. Sweetened thenga paal is a different food. A typical published recipe uses three tablespoons of jaggery for two servings — about 17 g of free sugar in your bowl, four teaspoons, on top of the rice flour you are already eating (recipe estimate, Cooking From Heart). Jaggery is not a diabetic sweetener; the reasoning is on is jaggery good for diabetes and karupatti. The sugar-and-grated-coconut sprinkle is the same problem in smaller doses, repeated every piece. Nothing here needs to be refused — take the milk plain, or take one sweet bowl at the festival meal and count it as the day’s sweet.

Stew, kadala or egg curry: what to put beside it

Idiyappam is never eaten alone here, so the accompaniment is half the answer and it is the half you can change without arguing with anybody. Egg curry or egg roast is the best everyday choice: protein, almost no carbohydrate, and it makes three pieces feel like five. Kadala curry brings black-chana protein and real fibre, though the chana itself carries carbohydrate, so it belongs on the plate as a partner rather than an extra. Vegetable stew is light and coconut-milk-based — fine, but thin on protein, so it is the combination most likely to leave you hungry at eleven and reaching for a biscuit. Fish or chicken curry works well; see fish for diabetics — fry vs curry. Eat the curry and any vegetable first and the idiyappam second — Amrita Kochi’s satiety work found higher-fibre, better-balanced versions of these same breakfasts kept people fuller at two hours than the plain rice-flour originals.

What to say at the counter in Marthandam

Hotels here plate idiyappam in sets — three or five on a banana leaf, with the curry ladled over. The set is the decision, and it is made before the food reaches you, so make it out loud. On the Tamil side, in Nagercoil or Thuckalay: “மூன்று இடியப்பம் மட்டும், சர்க்கரை வேண்டாம்” — moonu idiyappam mattum, sarkkarai venaam, three idiyappam only, no sugar — and then “குழம்பு கொஞ்சம் அதிகமா ஊத்துங்க”, kuzhambu konjam adhigama oothunga, pour a little more curry. On the Kerala-border stretch towards Kaliakkavilai: “മൂന്ന് ഇടിയപ്പം മതി, പഞ്ചസാര വേണ്ട” — moonnu idiyappam mathi, panchasara venda — and “കടല കറി കൂടുതൽ ഒഴിക്കണം”, kadala curry kooduthal ozhikkanam. At home the equivalent move is simpler: press what you plan to eat, and keep the sugar bowl off the table rather than in front of you. One caution before you cut anything. If you take a sulfonylurea such as glimepiride or glibenclamide, or insulin before breakfast, dropping from five pieces to two without telling anyone can leave you shaky and sweating by mid-morning — recognise a low. Cut the carbohydrate and review the medicine together; your doctor adjusts the dose, not this page. The same applies during Ramadan and Lent, when idiyappam is a common suhoor dish.

Ragi, wheat and red-rice idiyappam — better, or just marketed better?

Genuinely better, and still counted. Ragi idiyappam and wheat idiyappam add fibre, which slows digestion and improves how full you feel; finger millet in particular is a food I recommend widely, for reasons set out on is ragi good for diabetes. Two honest caveats keep this from becoming a licence. First, the standard review of finger millet (Shobana and colleagues, Advances in Food and Nutrition Research, 2013) notes that published GI values for ragi preparations run from low to high and that much of the older work used dated methodology — so “ragi, therefore low GI” is not a safe inference. Second, the flour you buy is usually milled, and refined ragi flour loses part of the seed coat where much of the fibre sits. Red-rice or matta idiyappam behaves the same way: better than milled white, still rice — see red rice vs white rice. Change the flour if you like it. Do not let the change buy you two extra pieces.

Is puttu good for diabetes? · Is appam good for diabetes? · Is pathiri good for diabetes? · Idli and dosa for diabetes · Red rice vs white rice · Glycemic index charts

Frequently asked questions

Three or four small home-pressed idiyappam suit most people with diabetes, provided a real curry comes with them. Each small one is roughly 11 g of carbohydrate by recipe arithmetic, so four is about a cup of cooked rice. Hotel idiyappam are larger, so three is the sensible number there. Test two hours later and let your own reading settle the count.

Better than porotta, comparable to dosa. Idiyappam carries no oil at all, while porotta is refined flour laminated with fat and dosa is cooked on a greased tawa. But all three are refined cereal, so the advantage is in the fat and the calories rather than in the carbohydrate. The count still decides your two-hour number.

Unsweetened coconut milk is fine — its fat slows the rise without adding sugar. Sweetened thenga paal is a different food: a typical recipe uses about three tablespoons of jaggery for two servings, roughly four teaspoons of sugar in your bowl. Ask for the milk plain, or take stew or kadala curry instead.

It is a reasonable upgrade, not a different rule. Finger millet carries more fibre than milled rice, and higher-fibre versions of these breakfasts kept people fuller at two hours in an Amrita Kochi study. But commercially milled ragi flour loses much of the seed coat, and the piece count still applies. Better, not unlimited.

It can, because idiyappam is often a dinner item here and dinner carbohydrate has all night to show up in your fasting reading. If your morning number is high and your afternoons are fine, look at the dinner plate first. Try three idiyappam instead of five, with a vegetable or egg curry, and recheck the fasting reading.

They are close cousins and both count as rice. Puttu is usually coarser rice flour steamed with grated coconut, which adds a little fat and fibre; idiyappam is finer flour with nothing added. Neither earns a free pass, and both are decided by the same two things — how many you take and what curry goes beside them.