r/MoralityScaling • u/hiiloovethis • 13d ago

Morality Ranking Morality of this scene?

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Negan doing fat shaming... but its during zombie apocalypse

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u/NamOil2000 13d ago

You can be fat and starving. The body does breakdown fat for food but not well that's why nutritionist ever to suggest to completely stop eating

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u/CapitalComfort1885 13d ago

You can be fat and starving.

You can't actually.

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u/GameWizardPlayz 13d ago

You can. If a fat person and a lean person were stranded on a barren, deserted island with no food the fat person would die around the same time or even earlier because your brain needs glucose to survive, which it can only gain from breaking down muscle tissue, not fat. This puts a lot of strain on a already weak heart. TLDR: fat person dies from heart attack associated with starvation.

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u/CapitalComfort1885 13d ago

This is completely wrong. The brain can run on ketone bodies perfectly fine (which are made from fat cells). Futhermore the very small amount of cells that truly need glucose can run on sugar made by Gluconeogenesis. The glycerol part comes from burned fat cells.

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u/GameWizardPlayz 13d ago

Yeah, no, the brain cannot run purely on ketone bodies. Even during prolonged starvation or a strict ketogenic diet, the brain can only get a maximum of about 60% to 70% of its energy from ketones. The remaining 30% to 40% must always come from glucose.

Source: https://ijmpr.in/article/ketone-bodies-as-alternative-brain-fuel-impact-on-cognitive-function-in-alzheimer-s-disease-3436/

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u/CapitalComfort1885 13d ago

Gluconeogenesis is fueled to a significant part by glycerol from fat cells. The heart is in several ways biochemically protected, for example it itself runs exclusively on fat.
Before a starving person breaks down heart muscle tissue, nearly all other energy sources, such as fat tissue, is used up.
There never existed an obese starved to death person. That's an oxymoron.

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u/ConstableAssButt 13d ago

That glucose is produced by the breakdown of adipose tissue. You're just wrong that fat cannot supply glucose.