● Food Intelligence · Sweetener
Across 827 single-item brown sugar logs from 508 Signos members, the average glucose peak was +38.1 mg/dL — about 10 mg/dL higher than white sugar's single-item cohort, despite identical GI of 65. The reason isn't the molasses: it's the vehicle. Brown sugar's home turf is baking, oatmeal, and glazes — flour-heavy, carb-heavy contexts where the spoonful compounds with everything underneath.
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Yes — meaningfully. Across 827 single-item brown sugar logs from 508 Signos members, the average glucose peak was +38.1 mg/dL. Across 827 logged meals where brown sugar was the focus, the mean glucose peak was +38.1 mg/dL and the median +36 mg/dL — about 10 mg/dL above white sugar's single-item average of +27.6, despite identical GI of 65 and GL of 7. In the broader 5,996-log cohort that includes brown sugar paired with other foods, the mean rises to +41.3 mg/dL. The gap isn't the molasses: it's the vehicle. Brown sugar's typical home is baking, oatmeal, and glazes — flour-heavy and carb-heavy contexts. Three levers drive the variance: high sugar content (≥20g at the meal) lifted peaks ~37% across 1,733 matched logs, total carb load (≥60g) added another ~36%, and protein pairings (≥15g) trimmed the peak ~9%. The IQR spans 31 mg/dL (p25: +21, p75: +52).
Some members spike +36.8 mg/dL. Others spike +55.4. The only way to know how you'll spike is to measure with a Signos CGM.
Brown sugar produces a mean peak of +38.1 mg/dL across 827 single-item logs from 508 members — moderate-to-high territory, with an IQR of 31 mg/dL (p25: +21, p75: +52) signaling that context matters as much as the spoonful itself. Three levers explain most of that range. First, the vehicle: on oatmeal the peak averages +45.6 mg/dL across 2,354 matched logs while in coffee or tea it lands at +37.7 (n=1,292) — a +8 mg/dL gap, driven by what carries the sucrose into the gut. Second, total meal carb load: very-heavy meals (110g+ carbs) hit +55.4 mg/dL while light-carb meals averaged +36.8 — a 50% escalation across 4 carb buckets. Third, protein pairings — meals with ≥15g protein ran ~9% lower than the no-protein baseline across 2,505 matched logs. These effects are observational from matched-pair Welch's t-tests, not controlled trials.
This page is grounded in 827 single-item brown sugar logs (the primary cohort) plus 5,996 total logged meals containing brown sugar from approximately 2,485 unique Signos members, captured through the Signos production PPGR cohort. 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. We report the mean peak glucose rise of +38.1 mg/dL across the right-skewed single-item distribution — the median is a few mg/dL lower at +36 mg/dL, which is typical for this data shape. The single-item IQR spans 31 mg/dL (p25: +21, p75: +52). Brown sugar logs were identified via a regex cohort match on the canonical food name 'Brown Sugar' — no exclusions needed because the compound term is unambiguous. A minimum of 100 matched meals was required for any vehicle option to appear at high confidence; the dark-brown-sugar sub-cohort returned only 24 matched logs and is included for completeness but flagged at fail confidence.