● Food Intelligence · Grain

Wild Rice Glycemic Index and Calculate Your Own Glucose Response

Across 2,261 logged meals containing wild rice — from 1,267 Signos members — the average glucose peak was +39.1 mg/dL, the lowest mean of any rice page on the Atlas. Wild rice isn't actually rice — it's the seed of an aquatic grass — and the extra fiber plus chewy intact-grain texture show up in matched logs: grilled salmon pairings trimmed the peak by −4 mg/dL.

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

● Powered by Signos cohort dataHigh confidence · n=2,261
The swap calculator below draws on 2,261 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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Tap any ingredient below to swap it for a glucose-friendlier alternative. Your Signos Glucose Score, predicted curve, and nutrition update in real-time. Every swap is data-backed by real CGM response measurements.

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Meal Context
Pre-meal sequence
Activity after meal
Time of day
54
of 100
Signos Glucose Score
High Spike Risk
75% of members fall between +33 and +47 mg/dL
Predicted Curve · 3-hr window
1401001201401601800m30m60m90m120m150m180m+40
Peak
+40
mg/dL
Time in Range
100%
3hr window
Above 140
0m
danger zone
Swaps
0
applied
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● Key Findings · Does wild rice spike blood sugar?

Yes — modestly, with an average peak of +39.1 mg/dL across 2,261 logged meals containing wild rice. Across 2,261 logged meals containing wild rice from 1,267 unique Signos members, the mean glucose peak was +39.1 mg/dL with 60.7% of logs above the +30 mg/dL spike threshold — the lowest mean of any rice page on the Atlas, and the gap is real. Wild rice isn't true rice; it's the seed of an aquatic grass, with more fiber and a chewier intact-grain texture that slows starch hydrolysis. Three levers explain most of the variance once it does share the plate: total meal carb load (the dominant factor, +25.6% when the meal hits ≥60g carbs), protein pairings (salmon pulls −4 mg/dL in matched logs), and time of day (morning logs trim −11.2%). The IQR spans 27 mg/dL (p25: +24, p75: +51).

  • ▸Wild rice averages +39.1 mg/dL across 2,261 logged meals containing wild rice — the lowest mean of any rice page on the Atlas and 5–6 mg/dL below white-rice family staples in matched cohort cuts.
  • ▸Total carb load is the biggest lever: high-carb meals (≥60g) spiked 25.6% higher than the low-carb baseline (n=634 vs 946, p<0.001, CI [+7.02, +11.20] mg/dL).
  • ▸Pairing wild rice with grilled salmon drops the peak from 39.4 to 35.5 mg/dL across 193 paired logs — a −4 mg/dL discount (medium confidence).
  • ▸Creamy chicken-and-wild-rice soup raised the peak from 39.4 to 44.3 mg/dL across 159 paired logs — a +5 mg/dL penalty, the largest positive pairing on this page.
● Signos Rules

Three citable insights from this recipe's data

Rule 1
"The Carb-Stack Penalty"
+25.6% peak
When wild rice appears in a meal carrying ≥60g of total carbs, the glucose response runs 25.6% higher than the low-carb baseline — a CI of [+7.02, +11.20] mg/dL across 634 high-carb logs versus 946 low-carb logs (p<0.001). The grass-seed bran slows starch hydrolysis but doesn't eliminate it; piling another carb on top compounds the load. Light meals (0–40g carbs) averaged +35.5 mg/dL, while very-heavy meals (110g+) hit +48.8 mg/dL — a 37.5% escalation across the bucket span.
Rule 2
"The Salmon Discount"
−4 mg/dL peak
Pairing wild rice with grilled salmon (n=193) trims the average peak by 4 mg/dL — from 39.4 to 35.5 mg/dL (medium confidence). It's the largest matched-pair pairing discount on this page, and consistent with the broader protein-pairing modifier (8.0% drop across 1,657 logs, CI [−6.04, −0.62] mg/dL, p<0.05). Mechanism: salmon's protein and omega-3 fat slow gastric emptying and trigger an early insulin response that blunts the rice spike.
Rule 3
"The Creamy-Soup Penalty"
+5 mg/dL peak
Creamy chicken-and-wild-rice soup pairings averaged +44.3 mg/dL across 159 paired logs versus +39.4 plain wild rice (n=2,057) — a +5 mg/dL penalty (medium confidence). The cream base, milk-and-flour roux, and starch-heavy soup body add fast-digest carb and saturated fat that compound on top of the rice's baseline starch. A dish marketed as 'wholesome' lands at the higher end of the wild-rice cohort.
● Curious about your own?

Curious how your body responds to wild rice specifically?

Across 2,261 logged meals containing wild rice, the IQR spans 27 mg/dL — from +24 mg/dL at the 25th percentile to +51 mg/dL at the 75th. That's a wide range even for the lowest-spike rice on the Atlas. Your response depends on factors like meal carb load, protein pairing, and the time of day you eat. A CGM makes that variability visible in real time.

Learn how Signos works
Why this meal spikes

This meal stacks 3 independent spike drivers — together they account for +39 mg/dL.

Driver 1
Whole-grain starch (~35g per cup cooked)
+39 mg/dL
A cup of cooked wild rice carries roughly 35g of carbs — most as starch, with ~3g of fiber from the intact bran. The bran slows hydrolysis but doesn't eliminate it: pure-wild logs anchor at +39.4 mg/dL across 2,057 entries.
Driver 2
Total meal carb load (≥60g at the same sitting)
+9 mg/dL
When total meal carbs hit ≥60g, peak rises 25.6% above the low-carb baseline (n=634 vs 946, p<0.001, CI [+7.02, +11.20] mg/dL). Very-heavy meals (110g+ carbs) push the average peak to +48.8 mg/dL — a 37.5% escalation vs. light-carb meals.
Driver 3
High-sugar meal context (≥20g sugar)
+8 mg/dL
In 213 meals flagged for high sugar content (≥20g), peaks ran 19.5% higher than the 1,662-meal low-sugar baseline (p<0.001, CI [+4.47, +10.36] mg/dL), compounding the rice's own starch load when sweetened sauces or sides are on the plate.
● Which bucket are you in?

Some members spike +35.5 mg/dL. Others spike +48.8. The only way to know how you'll spike is to measure with a Signos CGM.

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● What's worth knowing
What's worth knowing about wild rice is that it's not actually rice — it's an aquatic grass seed — and the data backs the distinction. Across 2,261 logged meals containing wild rice, the average peak was +39.1 mg/dL, the lowest of any rice page we measure, with a 5–6 mg/dL gap to the white-rice family. The grass-seed bran and chewy intact-grain texture earn that discount. But it's not a free pass: high-carb meals still pushed peaks +25.6% above the low-carb baseline, and creamy chicken-and-wild-rice soup pulled +5 mg/dL above plain. The fiber helps; the meal still matters.
— Signos Data Science Team

Why this happens, physiologically

Wild rice produces a mean peak of +39.1 mg/dL across 2,261 logged meals containing wild rice — the lowest mean of any rice page on the Atlas, with an IQR of 27 mg/dL (p25: +24, p75: +51). Wild rice isn't true rice — it's the seed of an aquatic grass (Zizania) — and the extra ~3g of fiber per cooked cup plus chewy intact-grain texture explain the gap. Three levers explain most of the cohort range. First, total meal carb load dominates: meals in the very-heavy carb bucket (110g+) spiked +48.8 mg/dL on average — 37.5% more than the lightest-carb meals (+35.5 mg/dL). Second, protein pairings offer measurable counter-pressure — grilled salmon trimmed the mean from 39.4 to 35.5 mg/dL across 193 paired logs. Third, morning timing matters: pre-10am logs ran 11.2% lower across 95 entries (CI [−8.69, −0.09] mg/dL, p<0.05). These effects are observational from matched-pair Welch's t-tests, not controlled trials.

● Three mechanisms drive wild rice's glucose range

Carb load, protein pairings, and morning timing together explain the 37.5% escalation seen in the cohort

  1. Mechanism 1
    +37.5%
    Carb-load escalation
    Total meal carb load is the dominant lever. Light-carb meals (0–40g) averaged +35.5 mg/dL across 946 logs; very-heavy meals (110g+) averaged +48.8 mg/dL across 100 logs — a 37.5% escalation across the bucket span.
  2. Mechanism 2
    −4 mg/dL
    Salmon pairing buffer
    Grilled salmon dropped the mean peak from 39.4 to 35.5 mg/dL across 193 logs (medium confidence). Salmon's protein plus omega-3 fat slow gastric emptying and trigger an early insulin response, blunting glucose entry.
  3. Mechanism 3
    −11.2%
    Morning timing edge
    Wild-rice logs eaten before 10am averaged 11.2% lower peaks than other times of day across 95 logs (CI [−8.69, −0.09] mg/dL, p<0.05). Morning insulin sensitivity is typically higher, blunting carb-driven peaks.
● Fit Check
Wild rice lands in the lower-moderate spike zone for most members — the lowest-spike rice variety on the Atlas, with grilled-salmon pairings sweetening the deal further.
✓ This is for you if
  • ▸You pair wild rice with grilled salmon. Salmon pairings averaged +35.5 mg/dL versus +39.4 plain across 193 paired logs — a −4 mg/dL discount (medium confidence).
  • ▸You add ≥15g of protein to the plate generally. Meals meeting that threshold averaged 8.0% lower than the no-protein baseline across 1,657 matched logs (CI [−6.04, −0.62] mg/dL, p<0.05).
  • ▸You keep total meal carbs under 40g. Light-carb builds averaged +35.5 mg/dL across 946 logs — versus +48.8 mg/dL for very-heavy meals (110g+ carbs, n=100), a 37.5% swing.
  • ▸You log wild rice at breakfast or before 10am. Breakfast logs averaged +38.4 mg/dL (n=134) and the morning timing modifier itself trimmed the peak by 11.2% across 95 logs.
✗ Not for you if
  • ▸You default to creamy chicken-and-wild-rice soup. Those logs averaged +44.3 mg/dL versus +39.4 plain — a +5 mg/dL penalty across 159 paired entries (medium confidence).
  • ▸You eat wild rice as part of a high-carb meal (≥60g total carbs). That load raised the glucose response by 25.6% — a CI of [+7.02, +11.20] mg/dL above the low-carb baseline (n=634, p<0.001).
  • ▸You pair wild rice with high-sugar items (≥20g sugar). High-sugar logs averaged 19.5% higher than baseline across 213 entries (CI [+4.47, +10.36] mg/dL).
  • ▸You log wild rice mostly at lunch. Lunch logs averaged +39.6 mg/dL (n=953) — directionally above the snack window at +35.2 (n=68).
● How it fits your day

Calorie band and pairings (member-measured)

Per serving
277–525 kcal
A single-item wild-rice log averages 277 kcal and 30g carbs (n=363); multi-item meals containing wild rice average 525 kcal and 54g carbs across 1,898 logged meals.
● Pair before
  • ▸Keep total meal carbs under 40g: light-carb builds averaged +35.5 mg/dL vs +48.8 mg/dL for very-heavy (110g+) — a 37.5% swing across 946 vs 100 logs.
  • ▸Add ≥15g of protein to the plate: meals meeting that threshold ran 8.0% lower than the no-protein baseline (n=1,657, CI [−6.04, −0.62] mg/dL, p<0.05).
● Pair after
  • ▸A 20-min walk within 30 min of eating blunts carb-driven peaks — especially relevant given 60.7% of wild-rice logs exceeded +30 mg/dL.
  • ▸Avoid stacking high-sugar sides post-rice: high-sugar logs averaged 19.5% higher than the low-sugar baseline (n=213, CI [+4.47, +10.36] mg/dL).
● Avoid pairing
  • ▸Eating wild rice in creamy chicken-and-wild-rice soup: those pairings averaged +44.3 mg/dL versus +39.4 plain — a +5 mg/dL penalty (n=159, medium confidence).
  • ▸Stacking wild rice with high-sugar dishes (≥20g sugar): those meals ran 19.5% above the low-sugar baseline (n=213).
● 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 wild rice compares to other staples — and what the CGM data says about each

Frequently Asked Questions

Methodology

This page is grounded in 2,261 logged meals containing wild rice from 1,267 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 +39.1 mg/dL; the median is +36 mg/dL with an IQR spanning 27 mg/dL (p25: +24, p75: +51). The single-item sub-cohort is small (n=59, mean +38.0 mg/dL); the broader cohort is used as the page primary to provide more stable modifier estimates. Wild-rice logs were identified via a regex cohort match on the canonical food name "Wild Rice." A minimum of 30 matched meals was required for any modifier slot option to appear in the recipe builder; the wild-rice-pilaf form sub-cohort (n=29) fell just below the publish threshold and is excluded from the builder.

Limitations

  • Self-reported portion sizes introduce measurement error — a 'cup of wild 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 single-item wild-rice sub-cohort is small (n=59); the broader cohort is used as the page primary to provide more stable estimates, but the single-food signal is less crisp than for higher-volume grains.
  • The wild-rice-pilaf form sub-cohort (n=29) fell below the publish threshold and is excluded — its directional +5.3 mg/dL signal versus pure wild cannot be statistically characterized.
  • The grilled-salmon (n=193) and creamy-soup (n=159) pairing sub-cohorts are medium-confidence; the −4 and +5 mg/dL deltas are directionally clear but should be interpreted with the sample sizes in mind.
  • 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 wild rice response

Across 2,261 logged meals containing wild rice, the average glucose peak was +39.1 mg/dL — but the IQR spans 27 mg/dL (p25: +24, p75: +51). That's not noise; it's biology. Your carb load at the meal, your protein pairing, even the time of day all shift the outcome measurably. Grilled salmon drops the peak by −4 mg/dL in our cohort; a very-heavy carb load lifts it to +48.8 mg/dL. Only a CGM tells you which end of that range you live on.

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