Table 6.

Summary of changes in the fecal SCFA profile after BS in the animal model

Surgery	Sample (n)	Model	Time post-op (weeks)	Changes in SCFAs						Study
				Acetate	Propionate	Butyrate	Isobutyrate	Valerate	Isovalerate
SG	7	Rats	3	↔	↔	↔	↔	↔	↔	[104]
	7		8	↔	↔	↔	↔	↔	↔	[104]
	11		1	↓	↓	↔	-	↔	-	[90]
	11		2	↓	↓	↔	-	↔	-	[90]
RYGB	7	Rats	3	↔	↑	↔	↔	↑	↑	[104]
	11		4	↓	↓	↓	-	↓	-	[90]
	7		8	-	↑	↑	↔	↔	↔	[104]
	6	Mice	2	↓	↑	↔	-	-	-	[107]
SADI-S	9	Rats	3	↑	↑	↑	↑	↔	↑	[104]
	9		8	↔	↑	↑	↔	↔	↔	[104]
BDP-DS	7	Rats	3	↔	↑	↑	↑	↑	↑	[104]
	7		8	↔	↑	↑	↑	↔	↑	[104]
DJB-SA	6	Rats	8	↑	↑	↑	↑	↑	↑	[89]

“↑” – higher concentration vs obese control, “↓” – lower concentration vs obese control, “↔“ – no significant changes vs obese control, “-” – no data