The Open-D Blog
35 years of T1D lived experience. Written by the founder, for diabetics who are tired of generic advice.
Meal Logging for Type 1 Diabetes: Why Every App Gets It Wrong
Every diabetes app makes you log meals manually. Open-D's agent does it for you, connects it to your glucose history and active insulin, and starts monitoring automatically. Here's what no other app does.
Why Walking Lowers Your Blood Sugar But Lifting Doesn't (The Science)
A 20-minute walk drops your glucose 50 points. An hour of heavy lifting barely moves it — or raises it. Here's the physiology behind exercise and blood sugar, and what every T1D athlete needs to know.
The 4 Types of Meals (And Why Your Insulin Timing Should Change)
'Take insulin 15 minutes before eating' is wrong for almost everyone. Different foods absorb at wildly different rates. Here are the 4 meal types every diabetic should know — and how to time insulin for each.
The Best Diabetes Apps in 2026: An Honest Comparison
I've used every major diabetes app for years. Here's what actually works, what doesn't, and why I built Open-D after trying them all.
Intermittent Fasting with T1D: Is It Safe?
Skipping breakfast sounds simple. But for Type 1 diabetics, fasting triggers liver glucose release, false lows, and basal timing puzzles. Here's how to fast safely — and why your diabetes app probably doesn't support it.
Alcohol and Blood Sugar: The Delayed Low Explained
You check your glucose at midnight — 120, perfect. You wake up at 3am sweating, shaking, at 45 mg/dL. Here's why alcohol causes delayed lows, how to prevent them, and why your CGM app won't warn you in time.
Why Your CGM App Isn't Enough (What You're Missing)
Your Dexcom or Libre app shows beautiful charts. But it doesn't tell you what to DO. Here's why CGM data alone isn't diabetes management — and what actually moves the needle on your time in range.
From 28% to 47% Time in Range: What Actually Changed
I've been hospitalized, rebuilt my control, and watched work destroy it again. On March 5th, 2026 I built a simple chat prototype — Vicente. Two days later I had my first morning in range.
Dawn Phenomenon Solutions That Actually Work (With Real Data)
I spent many years waking up at 180+ every morning. We tried everything. Here's what actually fixed my dawn phenomenon — with CGM data to prove it.
What is an AI Diabetes Agent? Open-D Explained
An AI Diabetes Agent is not an app — it's an intelligent companion that watches your glucose 24/7, learns your patterns, and warns you before problems happen. Open-D is the first true AI Diabetes Agent. Here's how it works.
Want to experience what AI-powered diabetes management actually looks like?
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