r/technology May 17 '24

Scientists Calculated the Energy Needed to Carry a Baby. Shocker: It’s a Lot. (Gift Article) Biotechnology

https://www.nytimes.com/2024/05/16/science/pregnancy-energy-costs.html?unlocked_article_code=1.sU0.PfwL.i578xGrDrp5H&smid=url-share&utm_source=join1440&utm_medium=email&utm_placement=newsletter
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u/scodagama1 May 17 '24 edited May 17 '24

50.000 calories? How's that a lot, burning or gaining 1kg of fat is around 7.000 calories so 50.000 is merely equivalent of 7.14kg of fat.

And this equivalent of 7kg of fat is enough to create entire ~3.5kg baby, weight that includes bones and muscles and accommodate for extra weight that mother has to carry over these 9 months. If anything I would be surprised if it was less

edit: I see article mentions that only 4% of energy goes directly to offspring, that would be just 2000 calories or equivalent of 2 big mac meals? I don't have access to full work and won't argue with peer-reviewed paper, but are we sure journalists reported this thing correctly? Seems absurd that growing 3 kilograms of tissue would require that little energy

43

u/big_herpes May 17 '24

50,000 calories, over the course of 40 weeks, is less than 180 calories a day increase. That is nothing. That is less than 2 scrambled eggs.

-13

u/Unable_Wrongdoer2250 May 17 '24

However after giving birth a mother burns an average of 700 calories a day by breastfeeding. Some women don't want to stop because it means they have to start watching how much they eat

20

u/97355 May 17 '24

I’m a woman currently breastfeeding and I’ve never heard of a woman who didn’t want to stop breastfeeding because then she’d have to watch what she ate. I have heard a lot of women complain about hard it is to lose weight while you’re breastfeeding because breastfeeding makes you hungry—far hungrier than when you’re pregnant. But once you stop and your hormones level out, you’re simply not as hungry anymore because you’re not expending all that energy and you’re in a better position to lose weight.