Coconut oil intake and its effects on the cardiometabolic profile – A
structured literature review
Heitor O. Santos
a,
⁎, Scott Howell
b
, Conrad P. Earnest
c
, Filipe J. Teixeira
d
a
School of Medicine, Federal University of Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil
b
Tier 1 Health and Wellness, Center for Research, Chattanooga, TN, United States
c
Texas A&M University, Health and Kinesiology, College Station, TX, United States
d
CBIOS (Research Center for Biosciences & Health Technologies), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal
abstract article info
Keywords:
Coconut oil
Cocos nucifera
HDL
Lauric acid
Lipids
In recent years, health professionals and laypersons have disseminated misinformation regarding the consump-
tion of coconut oil. Those encouraging the supplementation of coconut oil argue that it provides health benefits
and protective cardiovascular effects. Our article examines the effects of coconut oil intake on the cardiometabolic
profile by exploring various lipid indices, as well as potential non-lipid effects, such as weight loss. The majority of
randomized controlled trials show that coconut oil intake or its supplementation increases low-density lipopro-
tein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL \\ C), and total cholesterol when compared
with other vegetable oils. Lauric acid, a medium-chain fatty acid and the main constituent of coconut oil, in-
creases LDL-C and HDL-C concentrations, since it plays a main role as a substrate for apolipoprotein (apo)A1
and apoB synthesis, which are the key molecules in HDL-C and LDL-C particles, respectively.Despite some find-
ings demonstrating an increase in HDL-C, definitive long-term clinical trials are imperative to ascertain whether
this effect is clinically relevant. In addition, coconut oil intake has failed as a weight loss strategy and should not
be considered as a supplementation strategy to increase satiety and/or thermogenesis.If one desires to include
coconut oil in the diet, then we suggest that it should be limited and encompassed within the current recommen-
dations of SFA intake, which are up to 10% of total caloric intake.
© 2019 Elsevier Inc. All rights reserved.
Contents
Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437
Results – lipids effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437
Randomized controlled trials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437
Effect on high LDL-C concentrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437
Healthy patients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437
Obesity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438
Developed and developing countries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438
Coconut oil coupled with a low-calorie diet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438
Coconut fruit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438
Coconut milk porridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438
HDL-C pathway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439
Lipoprotein(a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439
Postprandial lipids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439
Non-lipid effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440
Thermogenesis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440
Progress in Cardiovascular Diseases 62 (2019) 436–443
Abbreviations and acronyms: Apo, apolipoprotein; ARIC, atherosclerosis Risk in Communities; ASCVD, atherosclerotic cardiovascular disease; CVD, cardiovascular disease; DXA, dual-
energy X-ray absorptiometry; HDL-C, high-density lipoprotein cholesterol; HOMA-IR, Homeostasis Model Assessment of Insulin Resistance Index; hs-CRP, high-sensitivity C-reactive pro-
tein; LCFA, long-chain fatty acids; Lp(a), lipoprotein(a); LDL-C, lipoprotein cholesterol; MCFA, medium-chain fatty acid; PURE, Prospective Urban Rural Epidemiology; SFA, saturated fatty
acids; TC, total cholesterol; TG, triglycerides.
⁎ Address reprint requests to: Heitor O. Santos. Para Street, 1720, Umuarama, Block 2U, Uberlandia, MG 38400-902, Brazil.
E-mail address: heitoroliveirasantos@gmail.com (H.O. Santos).
https://doi.org/10.1016/j.pcad.2019.11.001
0033-0620/© 2019 Elsevier Inc. All rights reserved.
Contents lists available at ScienceDirect
Progress in Cardiovascular Diseases
journal homepage: www.onlinepcd.com