Decode Your Blood Sugar in Plain English

For adults with prediabetes or type 2, not on insulin: independent, evidence based guides to continuous glucose monitors, A1C, food, and metabolism. Written for everyday people, not scientists. Free to read, no ads, no pop-ups.

  • Independent and evidence based
  • No fear mongering, no miracle cures
  • Free to read, no ads

Plain English, always

If we use a word like "A1C" or "time in range", we explain it right there. No homework required.

Written for you

Specifically for adults with prediabetes or type 2 diabetes who are not on insulin. We are not trying to be everything to everyone.

Backed by sources

Every health claim is grounded in published research and authority sources (ADA, CDC, NIH), linked at the end of each article.

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The four pillar articles

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What is a CGM? A plain English guide.

What a continuous glucose monitor actually is, how the sensor works, who it is for (and who it is not), and what you will see in the app on day one.

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CGM vs fingerstick: what is the difference?

An honest comparison of continuous trend data and single point-in-time fingerstick readings, when each makes sense, and what you give up with either.

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Why blood sugar spikes matter

What glucose excursions actually are, why repeated large spikes are worth paying attention to, explained accurately and without scare tactics.

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Food, carbs, and your glucose

How carbohydrates affect blood sugar, what glycemic response is, and how to think about meals practically without obsessing over numbers.

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More to read

Supporting articles

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How to read CGM glucose numbers

A beginner's guide to your sensor app: fasting numbers, post-meal peaks, time in range, trend arrows, and a simple two-week starter routine.

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Early signs of prediabetes

The honest signs (mostly risk factors plus a few subtle clues), the numbers your doctor uses, and what to actually do if you suspect prediabetes.

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At-home A1C test accuracy

How accurate at-home A1C kits actually are, instant-read vs mail-in, when each makes sense, and how to get a reliable result.

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Why we made this

A friend who knows the science.

The internet is full of confusing, scary, or salesy information about blood sugar, and not a lot of "hey, here's what's actually going on, in normal words." Glucose Decoded is built for the moment you finally have a question you want answered honestly, with sources you can check.

Read our story & editorial process →