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The human brain uses about 25% of the human body's metabolic energy. How are the other 75% spent, in terms of portioning to its various systems?

I thought this could be answered by a simple search, but I can't find the answer after searching very hard. I only got dieting advices.

I am envisioning the best answer to look like

enter image description here

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    $\begingroup$ You presumably didn╩╝t find an easy answer because, unlike for the brain, the metabolic expenditure of other organs varies dramatically based on their need. In this context, basal rates are only so useful. $\endgroup$ – Konrad Rudolph Nov 25 '19 at 20:11
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    $\begingroup$ Your vision of an answer seems to me more of a nightmare. This is an example of a representation that would be totally inappropriate to the question you ask. Why do you think that the different coloured items (energy/tissue?) need to be shown leading into something (Total) and what is the equivalent of the traces moving up or down or splitting? Sorry to sound severe, but there is a general problem that people do not think what graphical representations are appropriate for a particular data set. A pie chart will do, but the danger is thinking this is absolute, as @KonradRudolph points out. $\endgroup$ – David Nov 26 '19 at 17:57
  • $\begingroup$ Woah, 25% of the energy is lost to distribution? That's a lot. I cannot understand the other 29.52% because the graph is really messy there. $\endgroup$ – WoJ Nov 27 '19 at 13:58
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Percent of basal metabolic rate by organ (BC Campus Open Education):

  • Liver and spleen : 27%
  • Brain: 19%
  • Skeletal muscle: 18%
  • Kidneys: 10%
  • Heart: 7%
  • Other tissues (lungs, intestine, skin, bone, fat tissue, glands...): 19%

Basal metabolic rate by organ

Basal metabolic rate by 1 kg of specific organ tissue (kcal/kg of organ/day) (Table 5 from American Journal of Clinical Nutrition, 2010):

  • Heart: 440 kcal/kg
  • Kidneys: 440 kcal/kg
  • Brain: 240 kcal/kg
  • Liver: 200 kcal/kg
  • Skeletal muscle: 13 kcal/kg
  • Adipose tissue: 4.5 kcal/kg
  • Residual tissues (lungs, intestine, skin, bone...): 12 kcal/kg
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  • $\begingroup$ Why are liver and spleen aggregated? $\endgroup$ – MJD Nov 26 '19 at 13:50
  • $\begingroup$ @MJD, It's them (BC Campus) that merged them, not me. "Liver and spleen" are often mentioned together because they share some functions. $\endgroup$ – Jan Nov 26 '19 at 13:52
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    $\begingroup$ Where is the stomach and intestines? They utilize so much energy in the digestion process. $\endgroup$ – Loren Nov 27 '19 at 18:22
  • $\begingroup$ @Loren, stomach and intestine are active only during digestion, while the heart, kidneys and liver work all the time...I mentioned intestine under "other tissues" - I'll see if I can find some more specific data. $\endgroup$ – Jan Nov 28 '19 at 14:40

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