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Comment on When a person gains weight and keeps the weight on for a long time, is that old fat in your body, or does the fat get replaced over time?

zlatiah@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

From what I remember from nutrition science research… our body fat are literally living, breathing cells. As in, fat cells which specialize into fat storage, which can grow/shrink, and are in fact very metabolically active. So not only do they get replaced over time, they are biologically quite relevant and probably more “active” than, say, the nearby muscle cells

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pelespirit@sh.itjust.works ⁨3⁩ ⁨weeks⁩ ago
Wow, this is something that hasn’t been said. I wonder if this is still current.

An average human adult has 30 billion fat cells with a weight of 30 lbs or 13.5 kg. If a child or adolescent gains sufficient excess weight, fat cells may increase in absolute number until age twenty-four.[3] If an adult (who never was obese as a child or adolescent) gains excess weight, fat cells generally increase in size, not number, though there is some inconclusive evidence suggesting that the number of fat cells might also increase if the existing fat cells become large enough (as in particularly severe levels of obesity).

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