Overview
About Horse gram
Horse gram is the small, hard, russet pulse of South Indian and Deccan cooking, and Ayurveda has used it for centuries as kulattha for urinary stones.
That reputation is worth holding up against the actual grades, because the food is not as gentle as its medicinal reputation suggests. Oxalate lands at C, moderate rather than low, so it is not an oxalate-free food for a calcium oxalate stone former. What is genuinely high is the fermentable load: galacto-oligosaccharides grade E, total FODMAPs grade E and SIBO fermentation grades E, which is the ordinary reason a bowl of kollu rasam or huralikaalu saaru is followed by hours of gas. Nickel grades D. It is clean on gluten, lactose, dairy protein, histamine, salicylates, sulfites and nightshades.
Sensitivities
How Horse gram scores
Watch for
What trips people up
- Galacto-oligosaccharides grade E, so this is one of the gassier pulses even by legume standards, and the traditional whole-seed preparations keep every bit of that intact
- Oxalate grades C. The Ayurvedic stone reputation rests on diuretic and anti-crystallisation effects studied mostly in test tubes and animals, not on the pulse being low in oxalate, so if you form stones, log it rather than assuming it is protective
- Total FODMAPs grade E and SIBO fermentation grades E, which makes horse gram a poor fit during an elimination phase or an active SIBO course whatever form it is eaten in
- Nickel grades D, relevant if you are managing systemic nickel allergy and already limiting pulses
- The seed coat is famously hard, so it is often eaten whole after a long soak or as a sprouted salad. Sprouting knocks back some of the raffinose-family sugars but does not turn an E grade into a low-FODMAP food
Diet fit
Where it fits
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FAQ
Common questions about Horse gram
Is horse gram good for kidney stones?
Ayurveda uses kulthi as a diuretic for urinary stones, and laboratory and animal studies have reported that horse gram extracts slow calcium oxalate crystal growth. None of that is settled clinical evidence in people, and horse gram itself grades C for oxalate, meaning moderate, not negligible. If you are a stone former, the sensible move is to keep taking your clinician advice on fluids and oxalate and to log horse gram like any other moderate-oxalate food rather than treating it as a remedy.
Is horse gram low FODMAP?
No. It grades E for total FODMAPs and E for galacto-oligosaccharides. GOS is the fraction that carries almost all of it, since fructans sit at C and polyols and excess fructose are clean. The thin, soupy preparations such as kollu rasam are sometimes tolerated better than eating the whole seeds, because much less of the bean solids ends up in the bowl, but the water is not FODMAP-free either.
Why does horse gram need such a long soak?
It has one of the toughest seed coats of any cultivated pulse and is often called the hardest legume to cook, which is why recipes call for overnight soaking, pressure cooking, sprouting or dry roasting before grinding. From a trigger point of view the useful part is that the long soak with a water change and sprouting both reduce some of the raffinose-family sugars, so the same amount of horse gram can feel different depending on the preparation.
References
Read the background
Ratings reflect the Triggerbites ingredient database and may vary with portion size and preparation.