Alkohol och förbränning.

[dunken16]

Hur mycket sänks förbränningen med alkohol i kroppen?

[King Grub]

"Adipose release of nonesterified fatty acids into plasma decreased by 53% and whole-body lipid oxidation decreased by 73%"

Am J Clin Nutr. 1999 Nov;70(5):928-36. De novo lipogenesis, lipid kinetics, and whole-body lipid balances in humans after acute alcohol consumption.

[dunken16]

okej, tack. Jag har läst någon stans att endast 25% av energin i alkohol tas upp eftersom att resten blir värme. Kan detta stämma eller e det nonsens?

[King Grub]

Det här svarar på både den här frågan och på din nikotinfråga:

"During four sessions, nicotine (20 micrograms/kg per dosing) or placebo was given to male and female smokers (n = 9 each) via measured-dose nasal spray every 30 min for 2 h after consumption of diet tonic water with or without alcohol (0.5 g/kg). Each nicotine/placebo dosing was followed by assessment of energy expenditure by indirect calorimetry. Alcohol alone induced no significant effect in men or women, whereas nicotine alone and combined with alcohol induced a significant thermogenic effect in men but not women."

Physiol Behav. 1996 Jul;60(1):305-9. Acute thermogenic effects of nicotine and alcohol in healthy male and female smokers.

Runt 20% av alkoholen kan dock absorberas av magsäcken; restrerande passerar till tarmen för upptag. 3-10% undslipper genom utandning, urin och svett, men majoriteten av alkoholen metaboliseras av levern.