Question about burning fat.

[OldWiseGuy]

Why does burning fat produce more metabolic water than burning carbs or protein, from an evolutionary point of view?

 

[DaisyDay]

Maybe because fat contains twice as much energy as carbs and protein do.

 

[timothyu]

Maybe because fat contains twice as much energy as carbs and protein do.

I don't feel very energetic lol

 

[FrumiousBandersnatch]

Why does burning fat produce more metabolic water than burning carbs or protein, from an evolutionary point of view?

Fats are around twice as energy-dense as carbs & protein, and roughly speaking, the same amount of water is produced for each molecule of ATP (usable energy) generated. That energy density is why fats are the preferred long-term energy store.

So the amount of water produced is just a result of ATP generation, there's no particular evolutionary point that makes fats produce more.

 

[DaisyDay]

I don't feel very energetic lol

, yeah, you have to metabolize it, not just store it, to feel it?

 

[timothyu]

Yet fat produces more than it's own original volume

 

[timothyu]

, yeah, you have to metabolize it, not just store it, to feel it?

I think that mechanism retired about 15 yrs back from overuse.

 

[OldWiseGuy]

What happens to water produced?

 

[quatona]

What happens to water produced?

From an evolutionary point of view?

 

[OldWiseGuy]

From an evolutionary point of view?

Sure.

 

[Brightmoon]

What happens to water produced?

are you serious?!? Oh ok seriously . ultimately you respire or urinate it out after it goes through your cells and into your circulation

 

[OldWiseGuy]

are you serious?!? Oh ok seriously . ultimately you respire or urinate it out after it goes through your cells and into your circulation

Like regular water?

 

[Brightmoon]

Like regular water?

yep like good old dihydrogen monoxide

 

[OldWiseGuy]

yep like good old dihydrogen monoxide

Funny that it's rarely mentioned in articles about hydration.

 

[Brightmoon]

Probably because it isn’t much water in humans. Now if we were camels you’d have a point . Camel humps are very fatty

 

[timothyu]

What happens to water produced?

Usually drips out the exhaust pipe, no?

 

[OldWiseGuy]

Probably because it isn’t much water in humans. Now if we were camels you’d have a point . Camel humps are very fatty

Isn't metabolic water 8-10 % in humans. That's substantial.

 

[OldWiseGuy]

Usually drips out the exhaust pipe, no?

Drips out?

 

[OldWiseGuy]

Fats are around twice as energy-dense as carbs & protein, and roughly speaking, the same amount of water is produced for each molecule of ATP (usable energy) generated. That energy density is why fats are the preferred long-term energy store.

Another topic but shouldn't the poor be eating more fat as it's really a cheap source of energy (as well as hydration). This would help solve the hunger problem.

 

[timothyu]

Another topic but shouldn't the poor be eating more fat as it's really a cheap source of energy (as well as hydration). This would help solve the hunger problem.

Starch and sugar has always been known as the poor man's diet. No wonder most processed foods are made up of such.