Why drink one gallon of water a day?

[Officer_Iron]

I had a friend that went to a personal trainer and he told her not to drink her water cold because it would slow down her metabolism (sp?) any truth to that?

Haven't heard that before.

[Mister_A]

I drink at least 1.5-2 gallons per day.

[arejay]

... The colder the water, the more it has to warm up, and the more calories burned. I suggest you drink your gallon if not more...

is this actually true?...so if i drank 1 gallon of nearly frozen water, it would burn more calories than if I drank 1 gallon of only mildly chilled water? I didnt know the body burned calories by heating water at all...

Does anybody know how many calories it's possible to burn whilst the body raises the temprature of the water inside?

I'm curious as to know, this is an interesting topic.

[sumguy]

is this actually true?...so if i drank 1 gallon of nearly frozen water, it would burn more calories than if I drank 1 gallon of only mildly chilled water? I didnt know the body burned calories by heating water at all...

Does anybody know how many calories it's possible to burn whilst the body raises the temprature of the water inside?

I'm curious as to know, this is an interesting topic.

A guy answered that about 10 posts up. Up to 6 calories per gallon.

[arejay]

A guy answered that about 10 posts up. Up to 6 calories per gallon.

oh whoops, i must have missed it...thanks!

[Eniram]

I heard drinking too much water dilutes.. something or other and flushes away nutrients. Any truth to that?

[dsoul27]

Besides flushing our your kidneys and entire digestive system, hydrating your body, and brain, thereby allowing your metabolism to function more effectively, and just making for a nicer skin tone and appearance, drinking more water causes you to release more water through excretion, thereby dropping "water retention".

this guy said it all....

[Be-Be]

I heard drinking too much water dilutes.. something or other and flushes away nutrients. Any truth to that?

That's laxatives. Too much water can kill but you have to work at it.

[PermanentChange]

That's laxatives. Too much water can kill but you have to work at it.

Yeah, it's called drowning... LOL!

[Andrew99]

Someone told me they always have ice in their water because the body burns more calories bringing the temp up. A little research on the net and I found a study that said it may burn an extra 1-2 pounds a year.

Lets see. It takes 1 cal to raise a gram of water 1 oC. So lets say you drink ice water at say 4 oC and your body has to warm it to 37C. Thats 33 oC or 33 cal per gram. If you drink 3.8 L (1 gal) per day, thats 3800 mL or 3800 g or 125,400 cal or 125 kcal (food calories) per day. 125.4 kcal x 365 days= 45,771 kcal/3600 kcal per lb fat = 12 lbs per year. And thats drinking a gallon of ice water every day. And I didn't even need a study for that.

[Andrew99]

It's simple thermo. ~6.6 kCalories to heat up a liter of water from freezing to bodytemp. That's only 530 gallons of water to drop 1 pound of fat...

This doesn't seem right, but I can't see your work and tell you what you did wrong. Ice water is about 4C as it is generally not in equilibrium when consumed, but lets use zero to correspond with your calculation. bodytemp is 37C. It takes 1 cal to raise 1 g of water 1 oC. Thats 37 cal per gram. A L is 1000 mL which is almost exactly 1000g or 37000 cal or 37 kcals per L. 3.8 L to 1 gal = 140.6 kcal/gal. 3600/140.6 = 25 gallons of freezing water to lose a pound. Hardly seems worth it, does it?

[Be-Be]

Any way you calculate it, the lesson is to not expect sipping cold water to help you lose weight.

[PermanentChange]

Any way you calculate it, the lesson is to not expect sipping cold water to help you lose weight.

Amen.