On the other hand, the vast majority of short-chain fatty acids are present in human feces. Among them, acetic acid, propionic acid and butyric acid account for about 90% of all short-chain fatty acids.
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On the other hand, most of the short chain fatty acids exist in human feces, in terms of content, acetic acid, propionic acid and butyric acid account for about 90% of all the short chain fatty acids.