D85f6481dbe4c7221b0ec968560a6fd0
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why does coffee make my urine almost instantly yellow?

by (0)
Updated July 02, 2014 at 11:23 PM
Created June 30, 2014 at 10:20 PM

Before someone jumps down my throat with "you're dehydrated" let me explain myself.

I drink a lot of water...more than "normal" people but probably less than hardcore thirsters. I also drink about 2 cups of coffee daily (weekdays only)

Here is my concern:

I wake up, drink a glass of water, drink a small iced coffee PLUS almost 32 more ounces of water before noon. (At this point I'm peeing twice an hour and it is coming out clear) I then take a 30 minute lunch break at which I usually BEGIN to SIP on another iced coffee (not even a 1/4 of the coffee will be gone)... and the bathroom break I take upon walking back into my office comes out very DARK YELLOW and very fragrant.

Am I seriously dehydrating within 15 minutes of being almost over-hydrated...or any ideas of what the issue is?

Can I not tolerate coffee? Is my body even soaking up the water I drink or am I just pissing it out instantly? Help!

32f5749fa6cf7adbeb0b0b031ba82b46
41312 · July 02, 2014 at 11:23 PM

Coffee isn't a diuretic.

543a65b3004bf5a51974fbdd60d666bb
4373 · July 02, 2014 at 11:02 AM

test comment

Your answer will be reviewed by a moderator

96440612cf0fcf366bf5ad8f776fca84
17013 · July 02, 2014 at 10:44 AM

Weirdly enough I tried to resurrect this answer, but I got "Your answer will be reviewed by a moderator." - I don't see any option to, um, moderate, this answer and make it visible.

543a65b3004bf5a51974fbdd60d666bb
4373 · July 01, 2014 at 11:32 PM

you broke the site on your first day...ha

in all seriousness, i have never seen this particular problem with the PH site before. very strange indeed

D85f6481dbe4c7221b0ec968560a6fd0
0 · July 01, 2014 at 11:19 PM

thank you. this site is awfully confusing with the disappearing comments and what not, but i'm picking up what you're putting down for sure.

543a65b3004bf5a51974fbdd60d666bb
4373 · July 01, 2014 at 11:15 PM

i narrowed down the offending text,

i tried pasting some relevant text from here, the-effects-of-caffeine-on-urine but the PH site will not allow it to be visible, whether in an answer or in a comment

543a65b3004bf5a51974fbdd60d666bb
4373 · July 01, 2014 at 11:14 PM

i narrowed down the offending text,

i tried pasting some relevant text from here, the-effects-of-caffeine-on-urine but the PH site will not allow it to be visible, whether in an answer or in a comment

543a65b3004bf5a51974fbdd60d666bb
4373 · July 01, 2014 at 11:10 PM

more info here, the-effects-of-caffeine-on-urine

i tried pasting some relevant text from that link, but the PH site will not allow it to be visible, whether in an answer or in a comment

543a65b3004bf5a51974fbdd60d666bb
4373 · July 01, 2014 at 11:07 PM

"Because the prevention (due to caffeine intake) of sodium ion resorption reduces water filtration from the blood while increasing urination, caffeine indirectly causes urine to become more concentrated with urea, ammonia and other wastes. As a result, caffeine can cause urine to become darker in color and pungent. This is also a classic indication of dehydration, but given that caffeine prevents water filtration from the blood, it is almost impossible to become dehydrated as a result of caffeine consumption"

543a65b3004bf5a51974fbdd60d666bb
4373 · July 01, 2014 at 11:05 PM

some info on caffeine from live-strong,

"Because the prevention (due to caffeine intake) of sodium ion resorption reduces water filtration from the blood while increasing urination, caffeine indirectly causes urine to become more concentrated with urea, ammonia and other wastes. As a result, caffeine can cause urine to become darker in color and pungent. This is also a classic indication of dehydration, but given that caffeine prevents water filtration from the blood, it is almost impossible to become dehydrated as a result of caffeine consumption"

543a65b3004bf5a51974fbdd60d666bb
4373 · July 01, 2014 at 10:48 PM

i'll copy it to a new answer.

after editing the old/previous answer, i get the message,

"Your answer was submitted, and will be reviewed by a moderator before being visible to all users"

So it looks like the answer has been 'parked' in a spam folder somewhere & needs to be released by someone who has access.

32f5749fa6cf7adbeb0b0b031ba82b46
41312 · July 01, 2014 at 4:20 PM

Weird. It says there are 3 answers, and yet, only one shows up.

32f5749fa6cf7adbeb0b0b031ba82b46
41312 · July 01, 2014 at 11:48 AM

That's weird, daz. I don't see why it got hidden. Just repost it?

543a65b3004bf5a51974fbdd60d666bb
4373 · July 01, 2014 at 8:19 AM

added an update (edit) to my answer

543a65b3004bf5a51974fbdd60d666bb
4373 · July 01, 2014 at 4:17 AM

...interesting, did my answer just get hidden (awaiting moderation) after i did an edit, because i used the word livestrong & linked to the site...my bad

Direct link to the answer for mods; http://paleohacks.com/answers/529562/view.html , pls unhide if poss, feel free to delete the link i added if that was the issue. cheers

D85f6481dbe4c7221b0ec968560a6fd0
0 · July 01, 2014 at 3:36 AM

never make time to make breakfast or lunch. yeah, bad, i know. "warrior diet"?

32f5749fa6cf7adbeb0b0b031ba82b46
41312 · July 01, 2014 at 3:33 AM

Why are you not eating?

D85f6481dbe4c7221b0ec968560a6fd0
0 · July 01, 2014 at 3:30 AM

It falls between 4 and 5 on the chart within a half hour of drinking coffee. I've noticed today that a few bathroom trips later (without added water consumption) the color cleared up...no supplements and I don't generally eat anything at lunch or in the morning. Could it be the sugar?

32f5749fa6cf7adbeb0b0b031ba82b46
41312 · June 30, 2014 at 11:05 PM

You don't need to pee clear. Crisis averted.

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9 Answers

B82f2515ba5a800bed018c9536f9108d
0
1102 · July 02, 2014 at 2:23 PM

If it is the diuretic effect (it probably is, IMHO) a simple test will let you know the answer. Pick some dandelions leaves (say, 2 oz.) and eat them in a salad. That is a stronger (not to mention healthier) diuretic. I eat 2-4 salads at each change of season (fall and spring, often dandelions go dormant here in summer), and they produce a no-doubt flush of yellow the first time. I stop when they do not produce an effect any more.

32f5749fa6cf7adbeb0b0b031ba82b46
41312 · July 02, 2014 at 11:23 PM

Coffee isn't a diuretic.

543a65b3004bf5a51974fbdd60d666bb
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4373 · July 01, 2014 at 11:08 PM

"Because the prevention (due to caffeine intake) of sodium ion resorption reduces water filtration from the blood while increasing urination, caffeine indirectly causes urine to become more concentrated with urea, ammonia and other wastes. As a result, caffeine can cause urine to become darker in color and pungent. This is also a classic indication of dehydration, but given that caffeine prevents water filtration from the blood, it is almost impossible to become dehydrated as a result of caffeine consumption"

543a65b3004bf5a51974fbdd60d666bb
0
4373 · July 01, 2014 at 11:03 PM

"...before noon. At this point I'm peeing twice an hour and it is coming out clear" > At this point you are over-hydrated. You should not need to pee twice an hour. Pee does need to be clear, in fact imo it is not good. You are likely peeing away valuable electrolytes (that need to be replaced). Have you eaten anything yet?

"I then take a 30 minute lunch break at which I usually BEGIN to SIP on another iced coffee (not even a 1/4 of the coffee will be gone)... and the bathroom break I take upon walking back into my office comes out very DARK YELLOW and very fragrant" > Did you eat anything at lunch...if yes, then this is your kidneys working, pee is supposed to be yellow.

Where does it sit on this pee chart,

ps. did you take any supplements at lunch time, in particular something including Vit B2 (riboflavin), that stuff can turn your pee bright (fluorescent) yellow. ref

543a65b3004bf5a51974fbdd60d666bb
4373 · July 02, 2014 at 11:02 AM

test comment

Your answer will be reviewed by a moderator

D85f6481dbe4c7221b0ec968560a6fd0
0 · July 01, 2014 at 11:19 PM

thank you. this site is awfully confusing with the disappearing comments and what not, but i'm picking up what you're putting down for sure.

543a65b3004bf5a51974fbdd60d666bb
4373 · July 01, 2014 at 11:10 PM

more info here, the-effects-of-caffeine-on-urine

i tried pasting some relevant text from that link, but the PH site will not allow it to be visible, whether in an answer or in a comment

543a65b3004bf5a51974fbdd60d666bb
4373 · July 01, 2014 at 11:07 PM

"Because the prevention (due to caffeine intake) of sodium ion resorption reduces water filtration from the blood while increasing urination, caffeine indirectly causes urine to become more concentrated with urea, ammonia and other wastes. As a result, caffeine can cause urine to become darker in color and pungent. This is also a classic indication of dehydration, but given that caffeine prevents water filtration from the blood, it is almost impossible to become dehydrated as a result of caffeine consumption"

543a65b3004bf5a51974fbdd60d666bb
4373 · July 01, 2014 at 11:05 PM

some info on caffeine from live-strong,

"Because the prevention (due to caffeine intake) of sodium ion resorption reduces water filtration from the blood while increasing urination, caffeine indirectly causes urine to become more concentrated with urea, ammonia and other wastes. As a result, caffeine can cause urine to become darker in color and pungent. This is also a classic indication of dehydration, but given that caffeine prevents water filtration from the blood, it is almost impossible to become dehydrated as a result of caffeine consumption"

543a65b3004bf5a51974fbdd60d666bb
0
4373 · July 01, 2014 at 10:59 PM

test answer (will delete later)

"...before noon. At this point I'm peeing twice an hour and it is coming out clear" > At this point you are over-hydrated. You should not need to pee twice an hour. Pee does need to be clear, in fact imo it is not good. You are likely peeing away valuable electrolytes (that need to be replaced). Have you eaten anything yet?

"I then take a 30 minute lunch break at which I usually BEGIN to SIP on another iced coffee (not even a 1/4 of the coffee will be gone)... and the bathroom break I take upon walking back into my office comes out very DARK YELLOW and very fragrant" > Did you eat anything at lunch...if yes, then this is your kidneys working, pee is supposed to be yellow.

Where does it sit on this pee chart,

ps. did you take any supplements at lunch time, in particular something including Vit B2 (riboflavin), that stuff can turn your pee bright (fluorescent) yellow. ref

Edit: some info from 'google',

"Because the prevention (due to caffeine intake) of sodium ion resorption reduces water filtration from the blood while increasing urination, caffeine indirectly causes urine to become more concentrated with urea, ammonia and other wastes. As a result, caffeine can cause urine to become darker in color and pungent. This is also a classic indication of dehydration, but given that caffeine prevents water filtration from the blood, it is almost impossible to become dehydrated as a result of caffeine consumption"

543a65b3004bf5a51974fbdd60d666bb
0
4373 · July 01, 2014 at 10:53 PM

"...before noon.At this point I'm peeing twice an hour and it is coming out clear" > At this point you are over-hydrated. You should not need to pee twice an hour. Pee does need to be clear, in fact imo it is not good. You are likely peeing away valuable electrolytes (that need to be replaced). Have you eaten anything yet?

"I then take a 30 minute lunch break at which I usually BEGIN to SIP on another iced coffee (not even a 1/4 of the coffee will be gone)... and the bathroom break I take upon walking back into my office comes out very DARK YELLOW and very fragrant" > Did you eat anything at lunch...if yes, then this is your kidneys working, pee is supposed to be yellow.

Where does it sit on this pee chart,

ps. did you take any supplements at lunch time, in particular something including Vit B2 (riboflavin), that stuff can turn your pee bright (fluorescent) yellow. ref

Edit: some more info on caffeine from live-strong...

"Because the prevention (due to caffeine intake) of sodium ion resorption reduces water filtration from the blood while increasing urination, caffeine indirectly causes urine to become more concentrated with urea, ammonia and other wastes. As a result, caffeine can cause urine to become darker in color and pungent. This is also a classic indication of dehydration, but given that caffeine prevents water filtration from the blood, it is almost impossible to become dehydrated as a result of caffeine consumption" (go to the link for the rest of info)

543a65b3004bf5a51974fbdd60d666bb
0
4373 · July 01, 2014 at 10:50 PM

"...before noon.At this point I'm peeing twice an hour and it is coming out clear" > At this point you are over-hydrated. You should not need to pee twice an hour. Pee does need to be clear, in fact imo it is not good. You are likely peeing away valuable electrolytes (that need to be replaced). Have you eaten anything yet?

"I then take a 30 minute lunch break at which I usually BEGIN to SIP on another iced coffee (not even a 1/4 of the coffee will be gone)... and the bathroom break I take upon walking back into my office comes out very DARK YELLOW and very fragrant" > Did you eat anything at lunch...if yes, then this is your kidneys working, pee is supposed to be yellow.

Where does it sit on this pee chart,

ps. did you take any supplements at lunch time, in particular something including Vit B2 (riboflavin), that stuff can turn your pee bright (fluorescent) yellow. ref

Edit:some info on caffeine from here (its only livestrong, but its a start...),

"Because the prevention (due to caffeine intake) of sodium ion resorption reduces water filtration from the blood while increasing urination, caffeine indirectly causes urine to become more concentrated with urea, ammonia and other wastes. As a result, caffeine can cause urine to become darker in color and pungent. This is also a classic indication of dehydration, but given that caffeine prevents water filtration from the blood, it is almost impossible to become dehydrated as a result of caffeine consumption" (go to the link for the rest of info)

96440612cf0fcf366bf5ad8f776fca84
0
17013 · July 01, 2014 at 3:36 PM

Don't know how true this is but Asprey claims that when you have to pee immediately after drinking coffee, you're probably drinking poor quality coffee that has toxins in it. Try switching to a better coffee and see how that affects you.

I did notice this effect myself, but it could be placebo.

7a777966a2b7f30251c358b6fe35936f
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0 · July 01, 2014 at 9:21 AM

Yellow urine after consumption of coffee urine is a sign that you are dehydrating. Coffee is actually diuretic that can make you urinate so much and lose such a high measure of body liquids that it prompts drying out. It takes about 500 mg of perk to affect drying out, so don't drink more than a few mugs of coffee a day.

543a65b3004bf5a51974fbdd60d666bb
0
4373 · July 01, 2014 at 2:53 AM

"...before noon. At this point I'm peeing twice an hour and it is coming out clear" > At this point you are over-hydrated. You should not need to pee twice an hour. Pee does need to be clear, in fact imo it is not good. You are likely peeing away valuable electrolytes (that need to be replaced). Have you eaten anything yet?

"I then take a 30 minute lunch break at which I usually BEGIN to SIP on another iced coffee (not even a 1/4 of the coffee will be gone)... and the bathroom break I take upon walking back into my office comes out very DARK YELLOW and very fragrant" > Did you eat anything at lunch...if yes, then this is your kidneys working, pee is supposed to be yellow.

Where does it sit on this pee chart,

ps. did you take any supplements at lunch time, in particular something including Vit B2 (riboflavin), that stuff can turn your pee bright (fluorescent) yellow. ref

Edit: some info on caffeine from here (its only livestrong, but its a start...),

"Because the prevention (due to caffeine intake) of sodium ion resorption reduces water filtration from the blood while increasing urination, caffeine indirectly causes urine to become more concentrated with urea, ammonia and other wastes. As a result, caffeine can cause urine to become darker in color and pungent. This is also a classic indication of dehydration, but given that caffeine prevents water filtration from the blood, it is almost impossible to become dehydrated as a result of caffeine consumption" (go to the link for the rest of info)

96440612cf0fcf366bf5ad8f776fca84
17013 · July 02, 2014 at 10:44 AM

Weirdly enough I tried to resurrect this answer, but I got "Your answer will be reviewed by a moderator." - I don't see any option to, um, moderate, this answer and make it visible.

543a65b3004bf5a51974fbdd60d666bb
4373 · July 01, 2014 at 8:19 AM

added an update (edit) to my answer

D85f6481dbe4c7221b0ec968560a6fd0
0 · July 01, 2014 at 3:30 AM

It falls between 4 and 5 on the chart within a half hour of drinking coffee. I've noticed today that a few bathroom trips later (without added water consumption) the color cleared up...no supplements and I don't generally eat anything at lunch or in the morning. Could it be the sugar?

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