Hydroxycitric Acid Applications in Obesity Management

Hydroxycitric acid (HCA), a prominent secondary metabolite derived from Garcinia species, has attracted considerable attention as a potential anti‐obesity agent. HCA exerts multifaceted effects on lipid metabolism, primarily through inhibition of ATP‐citrate lyase, thereby reducing citrate conversion to acetyl‐CoA and attenuating de novo lipogenesis. Concurrently, HCA influences satiety signals and may modulate adipocyte differentiation and thermogenesis. A growing body of preclinical studies has delineated its impact on key metabolic enzymes and gene expression networks, while clinical trials have yielded divergent outcomes regarding efficacy in weight reduction and lipid profile improvement. Emerging research further explores HCA’s role in promoting adipose tissue browning and its integration into combinatorial interventions, underscoring both its therapeutic promise and the necessity for rigorous evaluation of safety and long‐term benefits.

Research from Nature Portfolio

A proteomic analysis in avian models has provided seminal insights into HCA’s biochemical mechanisms. Supplementation with HCA led to upregulation of tricarboxylic acid cycle enzymes—such as pyruvate dehydrogenase components and aconitase—and downregulation of malic enzyme. These shifts favoured reduced acetyl‐CoA availability for fatty acid synthesis and enhanced β‐oxidation through upregulated enoyl‐CoA hydratase. The study elucidated key hepatic protein networks underpinning fat suppression and established a mechanistic framework that may inform translation to mammalian obesity models.

Hydroxycitric Acid Applications in Obesity Management publication trend

The graph below shows the total number of articles in hydroxycitric acid applications in obesity management across all publications each year (not limited to Nature Index journals).

Technical terms

Lipogenesis: The metabolic pathway by which acetyl‐CoA is converted into fatty acids for storage in adipose tissue.

Beta‐oxidation: The mitochondrial process of breaking down fatty acids to generate acetyl‐CoA for energy production.

ATP‐citrate lyase: A cytosolic enzyme that catalyses the cleavage of citrate to acetyl‐CoA and oxaloacetate, linking carbohydrate metabolism to lipid synthesis.

Adipose tissue browning: The process by which energy-storing white adipocytes acquire thermogenic characteristics typical of brown adipocytes, including increased mitochondrial activity.

Proteomics: The large‐scale study of all proteins expressed in a cell or tissue, used to elucidate molecular mechanisms and pathways.

References

1. Divya-WeightGo combined with moderate aerobic exercise remediates adiposopathy, insulin resistance, serum biomarkers, and hepatic lipid accumulation in high-fat diet-induced obese mice. Biomedicine & Pharmacotherapy (2023).
2. Garcinia cambogia Extract Increased Hepatic Levels of Lipolysis-Stimulated Lipoprotein Receptor and Lipids in Mice on Normal Diet. International Journal of Molecular Sciences (2023).
3. Lycopene and Garcinia cambogia Induce White-to-Brown Adipose Differentiation: An Innovative Strategy to Curb Obesity. Pharmaceuticals (2024).
4. Suppression of fat deposition in broiler chickens by (-)-hydroxycitric acid supplementation: A proteomics perspective. Scientific Reports (2016).
5. (−)-Hydroxycitric acid reduced fat deposition via regulating lipid metabolism-related gene expression in broiler chickens. Lipids in Health and Disease (2016).
6. Updates on Antiobesity Effect of Garcinia Origin (−)‐HCA. Evidence-based Complementary and Alternative Medicine (2013).