The amount of carbs/kcal decrease when you boil the milk?

[Hgreen56]

When milk is heated, lactose convert in to lactulose.
What i understand is that lactulose is not absorbed in the small intestine nor broken down by human enzymes.
In other words, humans cannot digest lactulose. (and that is why it gives a laxative effect)
This means that when you heat/boil milk, the carbs/kcal content decrease right?

I wondering how much milk sugar is convert into lactulose when you boil the milk for couple minutes , all of it?

 

[Hgreen56]

Lactulose is not normally present in raw milk, but is a product of heat processes: the greater the heat, the greater amount of this substance
(from 3.5 mg/l in low-temperature pasteurized milk to 744 mg/l in in-container sterilized milk).

 

[Funnywhensunny]

Low-Dose Lactulose as a Prebiotic for Improved Gut Health and Enhanced Mineral Absorption

Although medium and high doses of lactulose are used routinely for the treatment of constipation and hepatic encephalopathy, respectively, a wealth of evidence demonstrates that, at low doses, lactulose can also be used as a prebiotic to stimulate the growth of health-promoting bacteria in the...

www.frontiersin.org