The Study That Proves Pre-Bolusing Works | 15 Minutes, 50 Points | T1D

The Study That Proves Pre-Bolusing Works | 15 Minutes, 50 Points | T1D

Today Neil stops saying "trust me" and starts saying "here's the study." A trial published in Diabetes Care found that dosing rapid insulin 15 minutes before a meal dropped the blood sugar peak to about 167, versus about 221 when dosing at the meal. That's a 50-point lower peak, from timing alone. Same dose, same food.

Then the twist that keeps you from getting weird about it: a second study in Diabetes Technology & Therapeutics found 20 minutes early won at the one and two-hour marks, but 30 minutes early did NOT beat 15. There's a sweet spot, usually 15 to 20 minutes for most people on regular rapid insulin, and your exact number is yours to find. This is the proof that this one small change is worth it.

In this episode:

  • The Diabetes Care study: 15 minutes early cut the peak by about 50 points
  • Why earlier isn't automatically better (the sweet spot explained)
  • The 15-to-20-minute window most people land in
  • How to start hunting for your own personal pre-bolus timing

This Week's Challenge: Get honest about your natural timing right now. When you sit down, are you dosing early, late, or mid-chew? Find your starting line.

Helpful resources and newsletter: https://yourbestt1dyear.com

Connect with Neil: TikTok: https://tiktok.com/@the.betes Instagram: https://instagram.com/thebetes Facebook: https://facebook.com/neilgreathouse LinkedIn: https://linkedin.com/in/neil-greathouse-a607b912 Website: https://yourbestt1dyear.com

Books on Amazon: Type 1 Diabetes – One Day at a Time: https://a.co/d/6UHooWJ Type 1 Diabetes – True Stories: https://a.co/d/dfIlyI1

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Jaksot(228)

Do You Still Pre-Bolus on a Closed-Loop Pump? | Control-IQ, Omnipod 5

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If you're on a closed-loop system, Control-IQ, Omnipod 5, or Loop, you've probably wondered whether the algorithm means you're off the hook for pre-bolusing. Neil has to be the one to tell you: you st...

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Missed and Late Insulin Boluses: What to Do | Type 1 Diabetes

Missed and Late Insulin Boluses: What to Do | Type 1 Diabetes

Some nights you do everything right and it still goes sideways. The dinner party, the cookout with the moving-target food, the night you're so fried you only remember to bolus while scraping the plate...

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Why Pizza Spikes Your Blood Sugar at Midnight | Fat, Protein & T1D

Why Pizza Spikes Your Blood Sugar at Midnight | Fat, Protein & T1D

Some meals spike you and move on. Pizza spikes you, waves goodbye, and comes back four hours later like a horror-movie villain. If you've ever been 110 at bedtime and 260 at midnight, this episode exp...

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How to Pre-Bolus at Restaurants and Takeout | Type 1 Diabetes

How to Pre-Bolus at Restaurants and Takeout | Type 1 Diabetes

"It'll be right out" might be the most cursed sentence in all of type 1 diabetes. August is about making your pre-bolus habit survive the real world, and we start with the hardest place to do it: rest...

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Start Pre-Bolusing With Just 5 Minutes | Type 1 Diabetes Habit

Start Pre-Bolusing With Just 5 Minutes | Type 1 Diabetes Habit

You do not have to be a pre-bolus athlete on day one. If "10 to 15 minutes" felt like too much, Neil takes the pressure all the way down: start with five minutes. Even five to seven minutes of head st...

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Why Dinner Is the Best Meal to Start Pre-Bolusing | Type 1 Diabetes

Why Dinner Is the Best Meal to Start Pre-Bolusing | Type 1 Diabetes

If pre-bolusing were a video game, breakfast would be the level everybody rage-quits on. You're rushed, half asleep, and half of us don't even eat it. So we don't start there. We start on the easy lev...

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Pre-Bolusing, Fear of Lows, and What Your Endo Really Sees on Your CGM // Dr. Monica Gomberg from Blue Circle Health

Pre-Bolusing, Fear of Lows, and What Your Endo Really Sees on Your CGM // Dr. Monica Gomberg from Blue Circle Health

We all know we're supposed to pre-bolus. We've known for years. So why do almost none of us actually do it? This week Neil steals an hour with Dr. Monica Gomberg, board certified endocrinologist at Bl...

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You're Closer to Pre-Bolusing Than You Think | Type 1 Diabetes

You're Closer to Pre-Bolusing Than You Think | Type 1 Diabetes

A short, warm one before the start line. Neil reminds you how far you've already come. Three weeks ago, pre-bolusing was a scary thing you knew you should do and didn't. Now you've named the fear, you...

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