● Food Intelligence · Snack
Across 3,912 single-item logs where members ate corn chips alone, the average glucose peak was +43.5 mg/dL — with 69.5% of responses exceeding +30 mg/dL. Swap to guacamole as your dip and the average drops −4 mg/dL; push total meal carbs to ≥60g and peaks climb 22% higher.
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Yes — across 3,912 meals where members ate corn chips alone, the average glucose peak was +43.5 mg/dL, with 69.5% of responses crossing the +30 mg/dL threshold. In our single-item cohort of 3,912 corn chip logs, the median peak was +41.0 mg/dL and 60.8% of responses landed in the high-spike tier. GI 42 classifies corn chips as low-glycemic, but the cohort tells a different story. Three levers dominate the outcome: total carb load at the meal (≥60g meals spiked 22.3% higher, p<0.001), dip pairing (guacamole dropped average peaks by −4 mg/dL across 6,084 matched logs), and chip brand (Doritos averaged +3.7 mg/dL above the tortilla-chip baseline, n=302). Late-evening logs averaged +46.2 mg/dL vs. a lunch average of +42.4 mg/dL — a timing gap consistent with declining evening insulin sensitivity. These are observational, not causal findings.
Some members spike +39 mg/dL. Others spike +50.8. The only way to know how you'll spike is to measure with a Signos CGM.
Corn chips are predominantly nixtamalized corn starch — a form of processed maize that digests rapidly into glucose. Across 3,912 logged meals where members ate corn chips alone, the average glucose peak hit +43.5 mg/dL, with 60.8% of responses classified as high. Published GI 42 suggests a moderate food, but the Signos cohort shows a high-spike profile driven by two primary levers: total carb load (≥60g meals spiked 22.3% higher, p<0.001, n=8,348) and the near-universal absence of a meaningful fat buffer in real eating contexts. Guacamole pairings (n=6,084) averaged −4 mg/dL vs. no dip — the one exception where the typical accompaniment actually helps. Evening and late-afternoon timing runs 3–4 mg/dL higher than lunch, consistent with lower evening insulin sensitivity. These effects are observational, not yet established as causal.
This page draws on Signos production CGM data logged between March 2025 and April 2026, covering 30,666 meals containing corn chips across 9,794 unique members (broader cohort). The single-item sub-cohort — meals where corn chips were logged without other foods — comprises 3,912 meals from 2,490 unique members and is the primary source for headline stats (mean peak +43.5 mg/dL, median +41.0 mg/dL, pct above 30: 69.5%). The modifier-table cohort (n=30,666, mean +42.3 mg/dL) is used for slot-level pairing comparisons in the recipe builder. Corn chips were identified via regex matching on logged food names, capturing tortilla chips, corn chips, Doritos, Fritos, and Tostitos. Statistical comparisons use Welch's t-test on matched pairs; all dominant modifier effects (high_carb, high_sugar, high_fat, fasted state) carry p<0.001. We filter to meals with a measured glucose rise between 0 and 100 mg/dL (ppgr_case='regular') to exclude sensor artifacts. The single-item distribution is right-skewed; the reported mean (+43.5 mg/dL) sits above the median (+41.0 mg/dL). Brand sub-cohorts (Doritos, Fritos, Tostitos, Scoops) are identified by log text matching; confidence tiers reflect sub-cohort size: high ≥500, medium ≥100, low <100.