Objective: Metabolic dysfunction-associated steatotic liver disease (MASLD) and cardiometabolic conditions affect populations across economic strata. Nevertheless, there are limited epidemiological studies addressing these diseases in low (LICs) and lower-middle-income countries (lower MICs). Therefore, an analysis of the trend of MASLD and cardiometabolic conditions in these countries is necessary., Methods: From 2000 to 2019, jointpoint regression analysis was employed to calculate the prevalence, mortality, and disability-adjusted life years (DALYs) for cardiometabolic conditions including MASLD, type 2 diabetes mellitus (T2DM), dyslipidemia (DLP), hypertension (HTN), obesity, peripheral artery disease (PAD), atrial fibrillation and flutter (AF/AFL), ischemic heart disease (IHD), stroke, and chronic kidney disease from HTN and T2DM, in LICs and lower MICs (according to the World Bank Classification 2019) using the Global Burden of Disease 2019 data., Results: Among the eleven cardiometabolic conditions, MASLD (533.65 million), T2DM (162.96 million), and IHD (76.81 million) had the highest prevalence in LICs and Lower MICs in 2019. MASLD represented the largest proportion of global prevalence in these countries (43 %). From 2000 to 2019, mortality in LICs and lower MICs increased in all cardiometabolic conditions, with obesity-related mortality having the highest increase (+134 %). During this timeframe, there were increased age-standardized death rates (ASDR) from obesity, PAD, and AF/AFL. From all conditions, the DALYs-to-prevalence ratio was higher in LICs and lower MICs than the global average., Conclusion: The burden of MASLD and cardiometabolic conditions is increasing worldwide, with LICs and lower MICs experiencing higher (DALYs) disability per prevalence. As these conditions are preventable, counteracting these trends requires not only the modification of ongoing actions but also the strategizing of immediate interventions., Competing Interests: Declaration of competing interest Mazen Noureddin has been on the advisory board for 89BIO, Gilead, Intercept, Pfizer, Novo Nordisk, Blade, EchoSens, Fractyl, Terns, Siemens, and Roche diagnostic; has received research support from Allergan, BMS, Gilead, Galmed, Galectin, Genfit, Conatus, Enanta, Madrigal, Novartis, Pfizer, Shire, Viking and Zydus; and is a minor shareholder or has stocks in Anaetos, Rivus Pharma and Viking. Vincent Chen's institution has received research grants from KOWA and AstraZeneca. Christos S. Mantzoros: reports grants through his institution from Merck, Massachusetts Life Sciences Center, and Boehringer Ingelheim; he reports personal consulting fees and support through his institution from Ansh Inc., collaborative research support from LabCorp Inc., reports personal consulting fees from Nestle, Olympus, Genfit, Lumos, Novo Nordisk, Amgen, Corcept, Intercept, 89 Bio, Madrigal, Aligos, Esperion, Biodexa and Regeneron, reports educational activity meals through his institution or national conferences from Esperion, Merck, Boehringer Ingelheim and travel support and fees from UptoDate, TMIOA, Elsevier, and the Cardio Metabolic Health Conference. None is related to this manuscript. Peer review of this manuscript was handled by an associate editor independently of the EIC and their research groups. As EIC recused himself from handling this manuscript. Naim Alkhouri reports grant/research support from 89Bio, Akero, Arbutus, AstraZeneca, Better Therapeutics, Boehringer Ingelheim, Bristol-Myers Squibb, Corcept, Cymabay, DSM, Galectin, Genentech, Genfit, Gilead, Hepagene, Healio, Intercept, Inventiva, Ionis, Ipsen, Madrigal, Merck, NGM, Noom, NorthSea, Novo Nordisk, Perspectum, Pfizer, Poxel, Viking, and Zydus; speaker's fees from AbbVie, Alexion, Echosens, Eisai, Gilead, Intercept, Ipsen, Madrigal, Perspectum, Salix, and Theratechnologies; Consultant for 89Bio, Boehringer Ingelheim, Echosens, Fibronostics, Gilead, Intercept, Madrigal, NorthSea, Novo Nordisk, Perspectum, Pfizer, and Zydus. Cheng Han Ng: CHN has served as a consultant to Boxer Capital. Jeffrey V. Lazarus: acknowledges grants to ISGlobal from AbbVie, Boehringer Ingelheim, Echosens, Gilead Sciences, Madrigal, MSD, Novo Nordisk, Pfizer, and Roche Diagnostics, consulting fees from Echosens, NovoVax, GSK, Novo Nordisk and Pfizer and payment or honoraria for lectures from AbbVie, Echosens, Gilead Sciences, Janssen, Moderna, MSD, Novo Nordisk and Pfizer, outside of the submitted work. The other authors declares there are no conflict of interest., (Copyright © 2024 Elsevier Inc. All rights reserved.)