● Food Intelligence · Grain

Jasmine Rice Glycemic Index and Calculate Your Own Glucose Response

Across 5,526 logged meals containing jasmine rice — from 2,518 Signos members — the average glucose peak was +44.9 mg/dL, the highest mean of any rice page on the Atlas. The variety itself doesn't move much (brown jasmine trims −0.8 mg/dL, Thai Hom Mali adds +1.2), but Thai curry and Asian stir-fry pairings each push the peak +6 mg/dL above plain.

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Reviewed by Grace Shryack
Signos Proprietary Data·Updated May 20, 2026·10 min read

● Powered by Signos cohort dataHigh confidence · n=5,526
The swap calculator below draws on 5,526 matched-pair logs — a broader cohort than the page's single-item primary, used to give every ingredient swap statistical power. Welch's t-test on matched pairs, not third-party glycemic-index tables. Each swap shows its sample size and confidence tier inline.
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Meal Context
Pre-meal sequence
Activity after meal
Time of day
61
of 100
Signos Glucose Score
High Spike Risk
75% of members fall between +37 and +53 mg/dL
Predicted Curve · 3-hr window
1401001201401601800m30m60m90m120m150m180m+45
Peak
+45
mg/dL
Time in Range
94%
3hr window
Above 140
10m
danger zone
Swaps
0
applied
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● Key Findings · Does jasmine rice spike blood sugar?

Yes — across 5,526 logged meals containing jasmine rice, the average glucose peak was +44.9 mg/dL. Across 5,526 logged meals containing jasmine rice from 2,518 unique Signos members, the mean glucose peak was +44.9 mg/dL — the highest mean of any rice page on the Atlas, with 70.9% of those logs exceeding the +30 mg/dL spike threshold and an IQR spanning 31 mg/dL (p25: +28, p75: +59). Three levers explain most of the variance: total meal carb load (the dominant factor, +15.6% when the meal hits ≥60g carbs), what you pair with it (Thai curry and stir-fry each add +6 mg/dL in matched logs), and the time of day (morning logs trim the peak −7.5%). The variety itself barely matters — brown jasmine trims just −0.8 mg/dL versus white.

  • ▸Jasmine rice averages +44.9 mg/dL across 5,526 logged meals containing jasmine rice — the highest mean of any rice page on the Atlas, with 70.9% of logs exceeding the +30 mg/dL spike threshold.
  • ▸Total carb load is the biggest lever: high-carb meals (≥60g) spiked 15.6% higher than the low-carb baseline (n=2,185 vs n=1,627, p<0.001, CI [+5.01, +7.81] mg/dL).
  • ▸Pairing jasmine rice with Thai curry pushed the peak from 44.4 to 50.1 mg/dL across 155 paired logs (+6 mg/dL), with Asian stir-fry delivering the same +6 mg/dL across 110 logs.
  • ▸Switching from white jasmine to brown jasmine cuts the average peak from 44.4 to 43.6 mg/dL across 118 brown-jasmine logs — a −0.8 mg/dL discount, smaller than the protein-pairing effect on other rice pages.
● Signos Rules

Three citable insights from this recipe's data

Rule 1
"The Carb-Stack Penalty"
+15.6% peak
When jasmine rice appears in a meal carrying ≥60g of total carbs, the glucose response runs 15.6% higher than the low-carb baseline — a CI of [+5.01, +7.81] mg/dL across 2,185 high-carb logs versus 1,627 low-carb logs (p<0.001). Jasmine is fast-digest amylopectin starch; piling another carb (tortilla, noodle, dessert) on top compounds the load. Light meals (0–40g carbs) averaged +41.2 mg/dL, while very-heavy meals (110g+) hit +49.9 mg/dL — a 21% escalation across the bucket span.
Rule 2
"The Curry-And-Stir-Fry Penalty"
+6 mg/dL peak
Pairing jasmine rice with Thai curry (n=155) or Asian stir-fry (n=110) lifts the average peak by 6 mg/dL — from 44.4 to 50.1 and 50.5 mg/dL respectively (medium confidence). Coconut milk in curry and sweet sauces in stir-fry add fat and sugar that compound on top of the rice's starch baseline. Plate-lunch style with grilled protein landed essentially flat at −1 mg/dL across 121 logs — the same rice, but without the rich sauce.
Rule 3
"The Variety-Doesn't-Matter Rule"
−0.8 mg/dL vs white
Across 118 brown-jasmine logs, the average peak landed at 43.6 mg/dL versus 44.4 mg/dL for white jasmine (n=4,956) — a −0.8 mg/dL difference that's directionally consistent with the bran-layer fiber effect but smaller than measurement noise. Thai Hom Mali (premium long-grain) ran the opposite direction at +1.2 mg/dL across 43 logs (low confidence). The takeaway: which jasmine you buy barely moves the curve. What you pair it with does.
● Curious about your own?

Curious how your body responds to jasmine rice specifically?

Across 5,526 logged meals containing jasmine rice, the IQR spans 31 mg/dL — from +28 mg/dL at the 25th percentile to +59 mg/dL at the 75th. That's a wide range for a single food. Your response depends on factors like meal carb load, sauce pairing, and time of day. A CGM makes that variability visible in real time.

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Why this meal spikes

This meal stacks 3 independent spike drivers — together they account for +44 mg/dL.

Driver 1
Fast-digest amylopectin starch (~45g per cup cooked)
+44 mg/dL
A cup of cooked jasmine rice carries roughly 45g of high-amylopectin starch that hydrolyzes rapidly into glucose. This is the dominant driver of the +44.4 mg/dL anchor across 4,956 plain-jasmine logs — the published GI 89 confirms the digestion profile.
Driver 2
Total meal carb load (≥60g at the same sitting)
+6 mg/dL
When total meal carbs hit ≥60g, peak rises 15.6% above the low-carb baseline (n=2,185 vs 1,627, p<0.001, CI [+5.01, +7.81] mg/dL). Very-heavy meals (110g+ carbs) push the average peak to +49.9 mg/dL — a 21% escalation vs. light-carb meals.
Driver 3
Rich-sauce pairings (Thai curry, stir-fry sauces)
+6 mg/dL
Thai curry pairings averaged +50.1 mg/dL vs +44.4 plain (n=155, medium confidence), and Asian stir-fry ran +50.5 mg/dL across 110 logs. Coconut milk fat and sweetened sauces add load that compounds with the rice's starch.
● Which bucket are you in?

Some members spike +41.2 mg/dL. Others spike +49.9. The only way to know how you'll spike is to measure with a Signos CGM.

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● What surprised us
What surprised us about jasmine rice is how little the variety choice matters versus how much the pairing does. Brown jasmine trims only −0.8 mg/dL versus white jasmine across 118 paired logs, and Thai Hom Mali actually runs +1.2 mg/dL higher. But pair it with Thai curry or Asian stir-fry and the peak jumps +6 mg/dL — about 7× the variety effect. The takeaway: don't overthink which jasmine you buy; think about the sauce.
— Signos Data Science Team

Why this happens, physiologically

Jasmine rice produces a mean peak of +44.9 mg/dL across 5,526 logged meals containing jasmine rice — the highest mean of any rice page on the Atlas, with a wide IQR of 31 mg/dL (p25: +28, p75: +59). Three levers explain most of that range. First, total meal carb load dominates: meals in the very-heavy carb bucket (110g+) spiked +49.9 mg/dL on average — 21% more than the lightest-carb meals (+41.2 mg/dL). Second, rich-sauce pairings amplify it: Thai curry pulled +50.1 mg/dL across 155 logs and stir-fry +50.5 mg/dL across 110, both +6 above the +44.4 plain-rice anchor. Third, morning timing offers measurable counter-pressure — pre-10am logs ran 7.5% lower across 245 entries (CI [−6.27, −0.46] mg/dL, p<0.05). These effects are observational from matched-pair Welch's t-tests, not controlled trials.

● Three mechanisms drive jasmine rice's glucose range

Carb load, rich-sauce pairings, and morning timing together explain the 21% escalation seen in the cohort

  1. Mechanism 1
    +21%
    Carb-load escalation
    Total meal carb load is the dominant lever. Light-carb meals (0–40g) averaged +41.2 mg/dL across 1,627 logs; very-heavy meals (110g+) averaged +49.9 mg/dL across 471 logs — a 21% escalation across the bucket span.
  2. Mechanism 2
    +6 mg/dL
    Rich-sauce pairing penalty
    Thai curry lifted the mean peak from 44.4 to 50.1 mg/dL across 155 logs; Asian stir-fry delivered the same +6 mg/dL across 110 logs. Coconut milk fat and sweet sauces add load on top of the rice's starch baseline.
  3. Mechanism 3
    −7.5%
    Morning timing edge
    Jasmine-rice logs eaten before 10am averaged 7.5% lower peaks than other times of day across 245 logs (CI [−6.27, −0.46] mg/dL, p<0.05). Morning insulin sensitivity is typically higher, blunting carb-driven peaks.
● Fit Check
Jasmine rice lands in the high-spike zone for most members — what you pair it with matters far more than which jasmine variety you choose.
✓ This is for you if
  • ▸You keep total meal carbs under 40g. Light-carb builds averaged +41.2 mg/dL across 1,627 logs — versus +49.9 mg/dL for very-heavy meals (110g+ carbs, n=471), a 21% swing.
  • ▸You build a plate-lunch style with grilled protein. Grilled-protein pairings averaged +43.8 mg/dL versus +44.4 plain across 121 paired logs — essentially flat, a clean lever versus the +6 mg/dL curry penalty.
  • ▸You log jasmine rice at breakfast or before 10am. Breakfast logs averaged +43.5 mg/dL (n=341) and the morning timing modifier itself trimmed the peak by 7.5% across 245 logs.
  • ▸You choose brown jasmine over white. Brown jasmine logs averaged +43.6 mg/dL versus +44.4 for white jasmine across 118 vs 4,956 logs — a small −0.8 mg/dL discount.
✗ Not for you if
  • ▸You pair jasmine rice with Thai curry. Curry pairings averaged +50.1 mg/dL versus +44.4 plain across 155 logs — a +6 mg/dL penalty driven by coconut milk fat and palm-sugar sauces.
  • ▸You eat jasmine rice as part of a high-carb meal (≥60g total carbs). That load raised the glucose response by 15.6% — a CI of [+5.01, +7.81] mg/dL above the low-carb baseline (n=2,185, p<0.001).
  • ▸You stack jasmine rice with a high-sugar dish (≥20g sugar). High-sugar logs averaged 15.5% higher than baseline (n=507 vs 4,097, CI [+4.68, +8.91] mg/dL, p<0.001).
  • ▸You log jasmine rice mostly at lunch or afternoon snack. Lunch logs averaged +45.3 mg/dL (n=1,748) and afternoon snacks ran +47.2 (n=54) — the two highest meal-time windows in the cohort.
● How it fits your day

Calorie band and pairings (member-measured)

Per serving
304–575 kcal
A single-item jasmine-rice log averages 304 kcal and 47g carbs (n=216); multi-item meals containing jasmine rice average 575 kcal and 62g carbs across 5,310 logged meals.
● Pair before
  • ▸Keep total meal carbs under 40g: light-carb builds averaged +41.2 mg/dL vs +49.9 mg/dL for very-heavy (110g+) — a 21% swing across 1,627 vs 471 logs.
  • ▸Build the plate around grilled protein, not curry sauce: grilled-protein pairings ran +43.8 mg/dL (n=121) versus +50.1 for Thai curry (n=155) — a 6 mg/dL gap.
● Pair after
  • ▸A 20-min walk within 30 min of eating blunts carb-driven peaks — especially relevant given 70.9% of jasmine-rice logs exceeded +30 mg/dL.
  • ▸Avoid stacking high-sugar items post-rice: high-sugar logs averaged 15.5% higher than the low-sugar baseline (n=507, CI [+4.68, +8.91] mg/dL, p<0.001).
● Avoid pairing
  • ▸Eating jasmine rice in Thai-curry or stir-fry builds: those pairings averaged +50.1 and +50.5 mg/dL respectively, +6 above plain (medium confidence, n=155 / 110).
  • ▸Logging jasmine rice in the late afternoon: afternoon-snack jasmine logs averaged +47.2 mg/dL (n=54), the highest meal-time window measured.
● Quick definitions (click to expand)
mg/dL — milligrams per deciliter. The unit blood glucose is measured in. A rise of "+30 mg/dL above baseline" means blood sugar went up 30 units after the meal.
Glycemic Index (GI) — a 0–100 score for how fast a food raises blood sugar in lab tests. Under 55 = low, 56–69 = medium, 70+ = high.
Glycemic Load (GL) — GI adjusted for portion size. Under 10 = low, 10–19 = medium, 20+ = high.
CGM — Continuous Glucose Monitor. A wearable sensor that tracks blood glucose every few minutes. Signos members wear CGMs while eating meals they log.
● Related Foods: How jasmine rice compares to other staples — and what the CGM data says about each

Frequently Asked Questions

Methodology

This page is grounded in 5,526 logged meals containing jasmine rice from 2,518 unique Signos members, captured through the Signos production PPGR cohort between March 2025 and April 2026. Data was filtered to meals with a measured glucose rise between 0 and 100 mg/dL (ppgr_case='regular') to exclude outliers and sensor artifacts. Statistical comparisons between modifier groups use Welch's t-test on matched pairs; all effects reported at p<0.05 minimum, with the dominant modifiers reaching p<0.001. The mean peak across this right-skewed distribution is +44.9 mg/dL; the median is +42 mg/dL with an IQR spanning 31 mg/dL (p25: +28, p75: +59). The single-item sub-cohort (n=121 from 94 unique members, mean +42.9 mg/dL) is smaller than the broader cohort; the broader cohort is used as the page primary to provide more stable modifier estimates. Jasmine-rice logs were identified via a regex cohort match on the canonical food name "Jasmine Rice" and the Thai Hom Mali variant. A minimum of 30 matched meals was required for any modifier slot option to appear in the recipe builder; high-confidence slots required n≥500.

Limitations

  • Self-reported portion sizes introduce measurement error — a 'cup of jasmine rice' logged by one member may differ meaningfully in cooked weight and starch content from another's.
  • Cohort skews health-motivated; Signos members are actively monitoring glucose, so general population responses — particularly among people with greater insulin resistance — may differ.
  • The brown jasmine sub-cohort (n=118) and Thai Hom Mali sub-cohort (n=43) are smaller than the white-jasmine baseline (n=4,956); the −0.8 and +1.2 mg/dL deltas are directionally consistent with published GI differences but should be interpreted with caution.
  • The Thai curry and stir-fry pairing sub-cohorts (n=155 and n=110) are medium-confidence; the +6 mg/dL penalty is statistically firm but the exact mechanism mix (coconut milk fat vs. palm sugar vs. fish sauce) cannot be teased apart from log data alone.
  • All findings are observational, not causal — confounders such as concurrent medications, activity levels, and sleep quality are not controlled for in the modifier analysis.
● Get your own data

See your own jasmine rice response

Across 5,526 logged meals containing jasmine rice, the average glucose peak was +44.9 mg/dL — but the IQR spans 31 mg/dL (p25: +28, p75: +59). That's not noise; it's biology. Your carb load at the meal, your sauce pairing, even the time of day all shift the outcome measurably. Thai curry pushes the peak +6 mg/dL in our cohort; a very-heavy carb load lifts it to +49.9 mg/dL. Only a CGM tells you which end of that range you live on.

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