REAGENT or RESOURCE	SOURCE	IDENTIFIER
Chemicals, peptides, and recombinant proteins
Olive oil	Nisshin OilliO Group	N/A
MCT oil	Nisshin OilliO Group	N/A
[Thr28, Nle31]-Cholecystokinin (25-33)	AnaSpec	Cat# AS-22944
Proglumide	Toronto Research Chemicals	Cat# P755955
Proglumide sodium salt solid	Sigma Aldrich	Cat# M006
Orlistat	Tocris Bioscience	Cat# 3540/50
Linolenic acid	Sigma Aldrich	Cat# L2376
Oleic acid	Sigma Aldrich	Cat# O1008
Octanoic acid (Caplyric acid)	Sigma Aldrich	Cat# O3907
Decanoic acid (Capric acid)	Sigma Aldrich	Cat# C1875
Critical commercial assays
LBIS Mouse Insulin ELISA kit	FUJIFILM Wako Shibayagi Corporation	Cat# AKRIN-011T; RRID: AB_2810836
Rat/Mouse GIP (total) ELISA	Merck	Cat# EZRMGIP-55K; RRID: AB_2801384
VPLEX GLP-1 Total Kit	Meso Scale Discovery	Cat# K1503PD-1
Lipase kit S	SB Bioscience	Cat# 4987-116-88021-3
Bio-Ras Protein Assay Dye Reagent Concentrate	Bio-Rad	Cat# 5000006JA
FLIPR Calcium 4 Assay Kit	Molecular Devices	Cat# R8141; RRID: AB_11195743
RNeasy Mini Kit	Qiagen	Cat# 74004
PrimeScript RT reagent kit	Takara Bio	Cat# RR037B
SYBR Green PCR Master Mix	Applied Biosystems	Cat# 4334973
Experimental models: Cell lines
Mouse: STC-1 cell line	Laboratory of Akira Hirasawa Tanaka et al. (2008)	RRID:CVCL_J405
Human: T-REx GPR40 cell line	Laboratory of Akira Hirasawa Hara et al. (2009)	N/A
Human: T-REx GPR120 cell line	Laboratory of Akira Hirasawa Ichimura et al. (2012)	N/A
Experimental models: Organisms/strains
C57BL/6J mice	Japan SLC	N/A
GIP KO mice	Nasteska et al. (2014)	N/A
Oligonucleotides
Silencer®Select Ffar4 Mouse	Invitrogen	Cat# s200889
Silencer®Select Ffar1 Mouse	Invitrogen	Cat# s107454
Silencer™Select Negative Control No. 1 siRNA	Invitrogen	Cat# 4390844
Primers for quantitative real-time PCR	Sankoda et al. (2017)	N/A
Software and algorithms
Igor Pro	WaveMetrics	RRID:SCR_000325 http://www.wavemetrics.com/products/igorpro/igorpro.htm
Molegro Virtual Docker software	Molegro ApS	RRID:SCR_000190 http://molegro-virtual-docker.software.informer.com/
La Theta (LCT-100M)	Hitachi Aloka Medical	N/A
SPSS Statistics	IBM	RRID:SCR_019096 https://www.ibm.com/products/spss-statistics
Other
TLC Silica gel 60 F254 25 Aluminium sheets 20 x 20 cm	Merck	Cat# 105554
Rodent Diet With 45 kcal% Fat	Reserch Diet Inc.	Cat# D12451