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Losing water at night. seems losing weight related to water

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Any of you know about this phenomena; I get up every two hours to get rid of water.

When I get up in the morning. This is the time when my weight is the lowest all day.

I take Insulin as a type two, Metformin, Mounjaro. I am glad to be losing weight, although weight loss seems more about how little I eat. Before I ate to the amount of insulin I was injecting, so I prevailed upon my doctor to prescribe less Insulin.

Do my kidneys work better at night, fasting. Or because I am laying down.

I suspect my water loss is related to my heart, un-diagnosed Congestive Heart Failure.

But I am usually wrong. un-knowledgeable.

Any hypothesis as to why I have this effect? Water weight loss at night?

I would like to accelerate losing weight.
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Not to get too personal, but are you taking other medications? Like a diuretic for blood pressure? Any signs of dehydration in the mornings (dry mouth, occasional diarrhea)?
I do not take diuretic. Sometimes at night I have had dry mouth, but that is likely part of Sleep Apnea treatment. Dry Mouth can be related to stomach acid which drifts up esophagus. I take Mounjaro, and it is more like constipation is part of the use of Mounjaro. At least for me.

I used to have a friend. The year after he had Open Heart surgery, his weight had gone up 80 pounds. He was furious in that; He said this weight gain was all water. He said, his weight gain was a common side effect of open heart surgery patients. His Cardiologist ignored him.

Medical doctors, Cardiologists use the standard of water is only on ankles, rarely on abdomen. If it was on abdomen it would show up because the doctor can press his finger on the abdomen, if the skin/tissue stays depressed - it is too much water, If the skin tissue resumes its original shape, it is not water, but body fat.

This quick test is wrong. wrong wrong.

Give a doctor a quick test, and they can not consider further. What is infuriating, as in this case, the fellow ends up in ER with weakness, have fallen. Congestive Heart Failure. Then the doc will discover that the patient has too much fluid on his body. IV diuretic. In like four days the patient loses forty, sixty, seventy pounds of water. Still send the patient home with thirty pounds of water on body.

Problem also is: Cardiologists make the same mistake over and over and over again. They can do Catheterizations. Surgeries. and do spectacular saves of patients brought to the ER with Congestive Heart Failure. but manage heart diseases during the rest of the time. Too Busy.

For a long time the presumption was that, given the percentage of time I had high blood glucose, therefore it had a dehydrating effect on my body. Which is sorta true, unless I have kidney disease. And used to be, during the day my body dumped a lot of fluid.

Diuretics make diabetes worse.

Likely my kidneys were further damaged by bacteria, while taking Jardiance. And doctors who will not prescribe antibiotics. In truth, Antibiotics in the tetracycline class are not likely to develop "antibiotic resistance" because of how they work. Doctors have their own myths that have nothing to do with real science.

The fellow who was angry about his "obesity" problem. Said, "Doctors would not listen. Ruined his health and his enjoyment of life."

In my case, my doc once said my kidney numbers looked a little off. Sent me to a kidney specialist, who did not see enough evidence for him to do anything. It is scary being in a waiting room with people who do Dialysis.

EDIT: By the way: Protein from low carb is not good for kidneys, once one gets to kidney problems. Consider: Low Carb High Fat will not much take water off ones body. Doctors educate the public: Anything to call me fat and lazy, and blame my body size on me.
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Lots to unpack here, and we're all hobbled by not being medical professionals.

My questions were geared more toward making sure you're staying hydrated overnight. It sounds like you are if you're peeing multiple times a night (a real stream, not just "gotta go urgency"). Don't forget that you can also lose water in your body through breathing and sweating. I saw an estimate on the Web that on average people lose about 200ml of water overnight. But that's only about six ounces.

Nighttime is one time when the body tries to maintain a water/sodium balance. This is a little trickier in people eating low carb because stored carbs retain water which can then be absorbed or released as the body needs. When you're in ketosis, though, you don't have a lot of carbs stored to perform this regulation, so you may need to pee more some nights and wake up feeling a little keto-flu-ish from low electroytes some mornings.

I'm not sure the advice about detecting water in the abdomen makes sense. Water is a liquid and my engineering training taught me that liquids (hydraulics) are not compressible. If pressure is added, they have to go somewhere. So I don't comprehend how pressing on the abdomen and not having it spring back somewhere is a sign of too much water. Maybe I'm not understanding the test procedure.

That also affects the statement about LCHF not taking much water off the body. At least in or near ketosis, the liver is no longer storing carbs/water for other times so water has been eliminated at some point. Water taken in may be eliminated quickly because there are few carbs in the body to store it, so maybe that's what you mean with that statement; I'm not sure.

It is a challenge when there are multiple (and, sometimes, competing) health problems. We've had a few threads here where people have denounced doctors who seem interested only in their specialty body part or system to the exclusion of the body it's in. And our medical payments system seems to reward treatment more than prevention or holistic medicine. That's why we have to stay vigilant about not letting the medical system put us in one of the trains on the track if we don't want to go where it's taking us.

I'm not sure this helps a lot; I'm sorry. It may be worth investigating your electrolyte balance (or if you have recent lab tests to see if certain electrolytes are within recommended ranges). It might be interesting to switch up medications you take at night (if possible). I take a diuretic for high blood pressure and I take it in the morning just to avoid having to pee multiple times during the night. I wouldn't change the time I take it for that reason but if I learned another med I was taking had that effect I'd consider moving it around to see if it made a difference. This being sick business is not for wimps.
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I used to have a friend. The year after he had Open Heart surgery, his weight had gone up 80 pounds. He was furious in that; He said this weight gain was all water. He said, his weight gain was a common side effect of open heart surgery patients. His Cardiologist ignored him.
...

Weight gain (fluid retention) is common after many surgeries and usually regresses as recovery progresses. That can be caused as a response to inflammation, or due to/prolonged by medications or due to recovering patient being very sedentary. I had a quad bypass and do not recall gaining weight during my recovery, but I was walking 10,000+ steps a day shortly after getting home.

Problem also is: Cardiologists make the same mistake over and over and over again. They can do Catheterizations. Surgeries. and do spectacular saves of patients brought to the ER with Congestive Heart Failure. but manage heart diseases during the rest of the time. Too Busy.
...

My cardiologist is not a surgeon, he does attend heart caths to monitor/read the pics but doesn't actually perform the procedure himself. Managing heart disease is his primary focus. His diet recommendations are typically vegetarian/mediterranean low fat focused. He doesn't push statins, or least he hasn't with me. He has always asked me if I had a copy of his diet but never asked if I follow it. Good thing he's retiring in May before my next appointment, it might give him a heart attack to know how I eat.

EDIT: By the way: Protein from low carb is not good for kidneys, once one gets to kidney problems. Consider: Low Carb High Fat will not much take water off ones body. Doctors educate the public: Anything to call me fat and lazy, and blame my body size on me.
True, excess protein is not good for already damaged kidneys, although it does not damage healthy kidneys. When reducing carbs, too many people make the mistake of increasing protein to make up the calories lost from cutting carbs, they should be increasing fats instead.

The storing of glycogen also stores water in the liver and muscle cells. 3 to 4 grams of water with each gram of glycogen. A low carb high fat diet, should reduce the amount of glycogen converted from glucose for storage and there should be an accompanying loss of stored water and weight. A lot of people report more weight loss when initially starting a LCHF diet and then it tapers down. The initial loss is usually water weight.

Since most people enter a fasting state when sleeping at night, glycogen is being converted back to glucose and leaving the liver along with the water. That may explain your original post question of why the effect.
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