# How far you can go on blood glucose alone

**URL:** <https://forum.fudiabetes.org/t/how-far-you-can-go-on-blood-glucose-alone/3705>\
**Category:** Sports & Exercise\
**Created:** [March 14, 2018, 5:57pm UTC](https://forum.fudiabetes.org/t/how-far-you-can-go-on-blood-glucose-alone/3705 "2018-03-14T17:57:33Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Eric](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/eric/32/9209_2.png) [@Eric](https://forum.fudiabetes.org/u/Eric)\
**Post date:** [March 14, 2018, 5:57pm UTC](https://forum.fudiabetes.org/t/how-far-you-can-go-on-blood-glucose-alone/3705/1 "2018-03-14T17:57:33Z")

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Here are approximates of how far you can get from the different carb sources, if these were the only fuel sources available.  
(In reality, you always use a combination of whatever fuel sources that are available, not just a single source.)

These are approximates based on a 80 kg man who runs at a pace that expends 80 kilojoules of energy per minute:

- 9 miles in 72 minutes = 1200 calories = muscle glycogen storage (in legs only)

- 3 miles in 24 minutes = 400 calories = liver glycogen storage

- 0.3 miles in 2 1/2 minutes = 40 calories = blood glucose\*  
(\*the value for blood glucose includes the glucose content of substrates and extracellular fluid)

The entire amount of free glucose in the blood provides only a 40 kcal energy reserve, which is enough to maintain this activity for only about 2.5 minutes. The rest of it comes from stored glucose (glycogen) or fat metabolism.

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_End of wiki ---------- comments start here_

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**Author:** ![Michel](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/michel/32/387_2.png) [@Michel](https://forum.fudiabetes.org/u/Michel)\
**Post date:** [March 14, 2018, 6:04pm UTC](https://forum.fudiabetes.org/t/how-far-you-can-go-on-blood-glucose-alone/3705/2 "2018-03-14T18:04:19Z")

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This is great info. We should make it a will!

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**Author:** ![Eric](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/eric/32/9209_2.png) [@Eric](https://forum.fudiabetes.org/u/Eric)\
**Post date:** [March 14, 2018, 6:22pm UTC](https://forum.fudiabetes.org/t/how-far-you-can-go-on-blood-glucose-alone/3705/3 "2018-03-14T18:22:24Z")

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I think it is:

![image](https://canada1.discourse-cdn.com/flex030/uploads/fudiabetes/original/2X/e/e82ff8e0e742480677d67aada63b1b0399bd6341.png)

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**Author:** ![Michel](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/michel/32/387_2.png) [@Michel](https://forum.fudiabetes.org/u/Michel)\
**Post date:** [March 15, 2018, 4:18am UTC](https://forum.fudiabetes.org/t/how-far-you-can-go-on-blood-glucose-alone/3705/4 "2018-03-15T04:18:03Z")

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You are right, I did not notice. I added it to the [sports wiki table of contents](https://forum.fudiabetes.org/t/sports-exercise-wiki-table-of-contents/304) and put up the usual wiki format at the bottom.