Sorry to revived this topic, but I'm 2 weeks into my cpap and now starting to have very impact stool and constipation. Nothing else has changed but now I started to intake more water (around 4-6L now).
Just wondering how everyone got through this?
I will get my check up very soon.
CPAP use and constipation ? related to dehydration
Re: CPAP use and constipation ? related to dehydration
You need to drink water but you also can drink to much water and cause problems . https://www.healthline.com/health/how-m ... you#causes https://www.backpacker.com/skills/outdo ... -kill-you/
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Machine: ResMed AirCurve 10 ASV Machine with Heated Humidifier |
Mask: Evora Full Face Mask - Fitpack |
Additional Comments: AirCurve 10 ASV, Oscar V1.0.1-r-1 |
US Navy Retired 1973,AirCurve 10 ASV, Mode: ASV Auto, Min EPAP: 7.2, Max EPAP: 15.0, Min PS:4.0, Max PS: 15.0, Mask ResMed Airtouch F20, Backup: (2) AirCurve 10 ASV
Re: CPAP use and constipation ? related to dehydration
Glad to have found this post. I also began experiencing severe constipation after starting with CPAP a month ago. No changes in diet or exercise, so have been trying to pin down the cause. I will up my water intake and see what happens.
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Machine: ResMed AirSense™ 10 AutoSet™ CPAP Machine with HumidAir™ Heated Humidifier |
Mask: AirFit™ P10 Nasal Pillow CPAP Mask with Headgear |
Additional Comments: Started with an Airfit F20 Full Face Mask. Found it uncomfortable. |
- cyberdreamer
- Posts: 129
- Joined: Mon Jun 24, 2019 10:57 am
- Location: Brazil
Re: CPAP use and constipation ? related to dehydration
CPAP doesn't cause dehydration and constipation.
AFAIK first treatment for constipation is drinking more water. In fact, taking a fiber supplement like Psyllium without additional water can lead to worse constipation and fecal impaction!
AFAIK first treatment for constipation is drinking more water. In fact, taking a fiber supplement like Psyllium without additional water can lead to worse constipation and fecal impaction!
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Machine: ResMed AirSense™ 10 AutoSet™ CPAP Machine with HumidAir™ Heated Humidifier |
Mask: ResMed AirFit™ F30 Full Face CPAP Mask with Headgear |
Machine: Airsense 10 Autoset (humidity 7, slimline hose) (5 years)
Mask: Resmed F30 (medium) (1 year)
Previous masks: Swift FX Nano (5 years); Dreamwear Nasal (few days); Swift FX pillow (few days)
Sleep study in 2016 with AHI 12 and some oxy desats
Mask: Resmed F30 (medium) (1 year)
Previous masks: Swift FX Nano (5 years); Dreamwear Nasal (few days); Swift FX pillow (few days)
Sleep study in 2016 with AHI 12 and some oxy desats
Re: CPAP use and constipation ? related to dehydration
Following up on my earlier post on this thread, it is now 2 months since starting on CPAP. I have been taking a tablespoon of olive oil with breakfast, lunch, and dinner for a couple of weeks (saw it recommended somewhere), and it has relieved my constipation issues significantly. 

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Machine: ResMed AirSense™ 10 AutoSet™ CPAP Machine with HumidAir™ Heated Humidifier |
Mask: AirFit™ P10 Nasal Pillow CPAP Mask with Headgear |
Additional Comments: Started with an Airfit F20 Full Face Mask. Found it uncomfortable. |
- chunkyfrog
- Posts: 34545
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Re: CPAP use and constipation ? related to dehydration
Any fat will help--olive oil has other benefits as well.
But nothing beats butter!
(Think Last Tango in Paris)

But nothing beats butter!
(Think Last Tango in Paris)

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Mask: AirFit™ P10 For Her Nasal Pillow CPAP Mask with Headgear |
Additional Comments: Airsense 10 Autoset for Her |