● Food Intelligence · Vegetable
Across 48,868 logged cucumber meals, members averaged +28.3 mg/dL — but the published GI is 15 and the GL is effectively 0, meaning the cucumber itself isn't doing the work. The cohort spike tracks almost entirely with what's around it: a sushi-roll context pushes the peak to +47.4 mg/dL, while cucumber alone or dipped in hummus stays near the +27 mg/dL baseline.
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No — cucumber itself is glucose-flat (GI=15, GL=0). The +28.3 mg/dL cohort average reflects what cucumber is eaten with, not the cucumber. Across 48,868 logged cucumber meals from 9,657 unique members, the average glucose peak was +28.3 mg/dL (median +24 mg/dL). But cucumber's published glycemic index is 15 and its glycemic load is effectively 0 — meaning a serving contributes almost no digestible carbohydrate. The cohort spike tracks meal context, not cucumber: in a sushi roll, the peak averaged +47.4 mg/dL across 235 logs (the rice is doing the work). On a sandwich or wrap, +35.0 mg/dL across 664 logs. With hummus or tzatziki, just +29.8 mg/dL. Eaten plain or in a salad, the response stayed at the +27–29.5 mg/dL baseline. Cucumber is best understood as a vehicle — a low-calorie, fiber-rich crunch — and the glucose lever is whatever rides along with it.
Some members spike +24.9 mg/dL. Others spike +47.4. The only way to know how you'll spike is to measure with a Signos CGM.
Cucumber is one of the lowest-impact foods in the atlas — published GI of 15, glycemic load of effectively 0 — because a typical serving (~50g sliced) contains roughly 1g of net carbohydrate and ~95% water. The +28.3 mg/dL cohort average across 48,868 logs is therefore not a cucumber response; it's a meal response that happens to contain cucumber. The single biggest lever measured in the cohort is total meal carb load: meals with ≥60g of carbs alongside cucumber ran 58.6% higher than the low-carb baseline (CI: +14.07 to +15.15 mg/dL, p<0.001), and the carb-bucket analysis shows a near-linear escalation from +24.9 mg/dL in light (0–40g carb) meals all the way to +43.3 mg/dL in very-heavy (110g+) meals — a 74% jump. Two secondary modifiers pull in the opposite direction: morning timing trimmed the response by 13.5% (n=3,473, p<0.001) and elevated baseline glucose (≥110 mg/dL) trimmed it by 8.5% (n=11,435, p<0.001), consistent with circadian insulin sensitivity and homeostatic dampening. The mechanism is observational, not yet causal, but the pattern is unambiguous: cucumber is glucose-flat on its own.
This page draws on 48,868 cucumber-containing meal logs from 9,657 unique Signos members, collected through the Signos production CGM platform between March 2025 and April 2026. Data were filtered to postprandial glucose responses (PPGR) between 0 and 100 mg/dL to exclude sensor artifacts and implausible readings. A subset of 783 single-item logs (cucumber eaten alone, no pairings) provides the cleanest baseline at +26.3 mg/dL. Modifier effects were estimated using Welch's t-test on matched pairs against a defined baseline; all reported effects carry p<0.001 unless noted. We report mean glucose peak across a right-skewed distribution — the median spike of +24 mg/dL is a few mg/dL lower than the mean of +28.3 mg/dL, which is typical for this type of data. The food was identified in member logs using a regex matching "cucumber" or "cucumbers" as a primary ingredient. Any carb-pair pairing slot requires at least 100 matched meals before it appears in the recipe builder.