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  #1   ^
Old Sat, Jun-09-18, 17:09
ayeh ayeh is offline
New Member
Posts: 6
 
Plan: Keto
Stats: 339/338/220 Male 74'
BF:
Progress:
Default Strips turn Purple - but take several hours?

Hello,

Anybody else experience this? Ketone strips turn Purple but after quite awhile has passed? (No change 40 secs after)
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  #2   ^
Old Sat, Jun-09-18, 17:53
dcc0455 dcc0455 is offline
Senior Member
Posts: 130
 
Plan: Low Carb
Stats: 224/155/155 Male 67
BF:
Progress: 100%
Default

Quote:
Originally Posted by ayeh
Hello,

Anybody else experience this? Ketone strips turn Purple but after quite awhile has passed? (No change 40 secs after)


Yes, they do turn purple after some time, but that is not an indication of ketones. The color after 40 seconds is the only valid reading.
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  #3   ^
Old Tue, Jul-10-18, 17:02
PaCarolSue PaCarolSue is offline
Senior Member
Posts: 425
 
Plan: Wheat Belly
Stats: 217/192.5/175 Female 5ft 2 inches
BF:lots/lots/less
Progress: 58%
Location: USA
Default

Hmmm, I never knew to wait 40 seconds!! If no change right away I was pitching them. Have to try again, now. LOL


Ok, look at this. This says "15 seconds." From NutritionAdvance.com

How Do Ketone Strips Work?

You can probably guess the finer details, but if you want to know how to use ketone strips, the process looks like this;

Take a urine sample in a clean container/jar of some sort

Hold the end of the strip in the urine for a few seconds

Shake the strip to remove any excess “liquid” before removing from the container

Wait 15 seconds until the ketone strip changes color

Comparing the color of your ketone strip to the color chart will let you know if you’re in ketosis (and how deeply).
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  #4   ^
Old Tue, Jul-10-18, 19:18
Ms Arielle's Avatar
Ms Arielle Ms Arielle is online now
Senior Member
Posts: 6,935
 
Plan: atkins
Stats: 247/225/153 Female 5'8"
BF:
Progress: 23%
Location: Massachusetts
Default

Use fresh test strips too for accuracy.
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  #5   ^
Old Tue, Jul-10-18, 21:46
BillyHW's Avatar
BillyHW BillyHW is offline
Senior Member
Posts: 298
 
Plan: Keto + IF
Stats: 260/300/165 Male 5' 6"
BF:
Progress: -42%
Location: Alberta, Canada
Default

Some say 15 seconds, others say 40.

I don't bother with the container and just try to catch midstream.
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  #6   ^
Old Wed, Jul-11-18, 09:02
Paul in KS Paul in KS is online now
New Member
Posts: 12
 
Plan: Keto
Stats: 250/218/180 Male 68
BF:
Progress: 46%
Location: Coffeyville
Default

What PaCarolSue said ^^^
The instructions on my strips say to compare the reading with the legend between 1 and 2 minutes after wetting the reagent pad. Any reading after 2 minutes is invalid.
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