Whole Body Health & Wellness
Numerous studies have assessed the relevance of C15:0 to metabolic, heart, gut, cognitive, liver, immune and red blood cell health.
Relevance of C15:0 to Whole Body health
Metabolic Health
Studies on the relevance of C15:0 to metabolic health and glucose control have shown the following:
- Mechanisms of action: AMPK, AKT, and PPAR alpha/delta activator
- Cell-based studies: Dose-dependent improvement in glucose uptake and insulin sensitivity
- In vivo studies: Lowered glucose, proinflammatory cytokines, and cholesterol
- Human prospective cohort meta-analyses: Lower risk of having or developing type 2 diabetes
Selected References
- Aglago, E. K. et al. Association between serum phospholipid fatty acid levels and adiposity in Mexican women. J Lipid Res 58, 1462–1470 (2017).
- Bishop et al. Hepatadecanoic Acid is Not a Key Mediator in the Prevention of Diet-Induced Hepatic Steatosis and Insulin Resistance in Mice. Nutrients 15, 2052 (2023).
- Chen et al. Biomarkers of Fatty Acids and Risks of Type 2 Diabetes: A Systematic Review and Meta-Analysis of Prospective Cohort Studies. Critical Reviews in Food Science and Nutrition 61, 2705–2718 (2021).
- Chooi et al. Effect of An Asian-Adapted Mediterranean Diet and Pentadecanoic Acid on Fatty Liver Disease: The TANGO Randomized Controlled Trial. American Journal of Clinical Nutrition 119, 788-799 (2024).
- Forouhi, N.G., Koulman, A., Sharp, S.J., Imamura, F., Kroger, J., Schulze, M.B., et al. Differences in the prospective association between individual plasma phospholipid saturated fatty acids and incident type 2 diabetes: the EPIC-InterAct case-cohort study. Lancet Diab Endocrinol 14, 70146–9 (2014).
- Fu, W.C. et al. Pentadecanoic acid promotes basal and insulin-stimulated glucose uptake in C2C12 myotubes. Food Nutr Res 65:10.29219/fnr.v65.4527 (2021).
- Huang, L. et al. Circulating saturated fatty acids and incident type 2 diabetes: A systematic review and meta-analysis. Nutrients 11:998 (2019).
- Imamura, F. et al. Fatty acid biomarkers of dairy fat consumption and incidence of type 2 diabetes: A pooled analysis of prospective cohort studies. PLOS Med 15, e1002670 (2018).
- Krachler, B. et al. Fatty acid profile of the erythrocyte membrane preceding development of type 2 diabetes. Nutr Metab Cardiovasc Dis 18:503-510 (2008).
- Kurotani, K. et al. Even- and odd-chain saturated fatty acids in serum phospholipids are differentially associated with adipokines. PLOS ONE 12, e0178192 (2017).
- Li et al. Saturated Fatty Acid Biomarkers and Risk of Cardiometabolic Diseases: A Meta-Analysis of Prospective Studies. Frontiers in Nutrition 9, 963471 (2022).
- Pranger et al. Potential Biomarkers for Fat from Dairy and Fish and Their Association with Cardiovascular Risk Factors: Cross-Sectional Data from the LifeLines BioBank and Cohort Study. Nutrients 11, 1099 (2019).
- Santaren, I.D. et al. Serum pentadecanoic acid (15:0), a short-term marker of dairy food intake, is inversely associated with incident type 2 diabetes and its underlying disorders. Am J Clin Nutr 100, 1532-1540 (2014).
- Smedman, A.E.M., Gustafsson, I.B., Berglund, L.G.T., Vessby, B.O.H. Pentadecanoic acid in serum as a marker of intake of milk fat: relations between intake of milk fat and metabolic risk factors. Am J Clin Nutr 69, 22-29 (1999).
- Venn-Watson, S., Lumpkin, R., Dennis, E.A. Efficacy of dietary odd-chain saturated fatty acid pentadecanoic acid parallels broad associated health benefits in humans: could it be essential? Sci Rep 10:8161 (2020).
- Venn-Watson et al. The Cellular Stability Hypothesis: Evidence of Ferroptosis and Accelerated Aging-Associated Diseases as Newly Identified Nutritional Pentadecanoic Acid (C15:0) Deficiency Syndrome. Metabolites 14, 355 (2024).
- Yehia et al. Longitudinal associations of dairy derived serum fatty acids with early type 2 diabetes mellitus risk phenotypes: Findings from the prospective metabolism and islet cell evaluation (PROMISE) cohort. Circulation 151, Number Suppl_1 (2025).
- Yuzbashian, et al. Cow’s Milk Bioactive Molecules in the Regulation of Glucose Homeostasis in Human and Animal Studies. Foods 13, 2837 (2024).
- Zheng, J.S. et al. Association between plasma phospholipid saturated fatty acids and metabolic markers of lipid, hepatic, inflammation and glycaemic pathways in eight European countries: a cross-sectional analysis in the EPIC-Interact study. BMC Med 15, 203 (2017).
- Zheu, Y. et al. A prospective study and longitudinal study of plasma phospholipid saturated fatty acid profile in relation to cardiometabolic markers and the risk of gestational diabetes. Am J Clin Nutr 107, 1017-1026 (2018).
- Zhu et al. A Prospective and Longitudinal Study of Plasma Phospholipid Saturated Fatty Acid Profile in Relation to Cardiometabolic Biomarkers and the Risk of Gestational Diabetes. American Journal of Clinical Nutrition 107, 1017–1026 (2018).
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Liver Health
Studies on the relevance of C15:0 to liver health have shown the following:
- Mechanisms of action: PPAR alpha/delta activator
- Cell-based studies: Dose-dependent anti-inflammatory and antifibrotic efficacy
- In vivo studies: Lowered liver inflammation, liver fibrosis, and liver iron deposition
- Human epidemiological studies: Lower liver fat, lower liver enzymes, less severe liver disease
- Randomized clinical trial: Achieving C15:0 levels > 5 ug/ml results in lower liver enzymes (ALT and AST)
Selected References
- Aabis, M. et al. Pentadecanoic acid attenuates thioacetamide-induced liver fibrosis by modulating oxidative stress, inflammation, and ferroptosis pathways in rat. Nauyn Schmied Arch Pharmacol doi: 10.1007/s00210-025-04143-6 (2025).
- Bishop et al. Hepatadecanoic Acid is Not a Key Mediator in the Prevention of Diet-Induced Hepatic Steatosis and Insulin Resistance in Mice. Nutrients 15, 2052 (2023).
- Chooi et al. Effect of An Asian-Adapted Mediterranean Diet and Pentadecanoic Acid on Fatty Liver Disease: The TANGO Randomized Controlled Trial. American Journal of Clinical Nutrition 119, 788-799 (2024).
- Jiao, J.etal. Circulating fatty acids associated with advanced fibrosis and hepatocellular carcinoma in south Texas hispanics. Cancer Epidemiol Biomarkers Prev 30, 1643-1651 (2021).
- Kratz, M. et al. Dairy fat intake is associated with glucose tolerance, hepatic and systemic insulin sensitivity, and liver fat but not β-cell function in humans. Am. J. Clin. Nutr. 99:1385-1396 (2014).
- Robinson et al. C15:0 Supplementation in Young Adults at Risk for Metabolic Syndrome: A Randomized Controlled Trial. Journal of Clinical Nutrition 154, 2763-2771 (2024).
- Sawh, M.C., Wallace, M., Shapiro, E, Goyal, N. et al. Dairy fat intake, plasma pentadecanoic acid, and plasma iso-heptadecanoic acid are inversely associated with liver fat in children. J Pediatr Gastroenterol Nutr 72:e90-e96 (2021).
- Venn-Watson, S.K., Butterworth, C.N. Broader and safer clinically-relevant activities of pentadecanoic acid compared to omega-3: Evaluation of an emerging essential fatty acid across twelve primary human cell-based disease systems. PLOS ONE https://doi.org/10.1371/journal.pone.0268778 (2022).
- Venn-Watson, S., Lumpkin, R., Dennis, E.A. Efficacy of dietary odd-chain saturated fatty acid pentadecanoic acid parallels broad associated health benefits in humans: could it be essential? Sci Rep 10:8161 (2020).
- Venn-Watson et al. The Cellular Stability Hypothesis: Evidence of Ferroptosis and Accelerated Aging-Associated Diseases as Newly Identified Nutritional Pentadecanoic Acid (C15:0) Deficiency Syndrome. Metabolites 14, 355 (2024).
- Wei et al. Parabacteroides distasonis Uses Dietary Inulin to Suppress NASH via Its Metabolite Pentadecanoic Acid. Nature Microbiology 8, 1534–1548 (2023).
- Yoo, W. et al. Fatty acids in non-alcoholic steatohepatitis: focus on pentadecanoic acid. PLOS ONE 12:e0189965 (2017).
- Zhao et al. Analysis of Serum Exosome Metabolites Identifies Potential Biomarkers for Human Hepatocellular Carcinoma. Metabolites 14, 462 (2024).
- Zheng, J.S. et al. Association between plasma phospholipid saturated fatty acids and metabolic markers of lipid, hepatic, inflammation and glycaemic pathways in eight European countries: a cross-sectional analysis in the EPIC-Interact study. BMC Med 15, 203 (2017).
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Immune & Joint Health
Studies on the relevance of C15:0 to immune health have shown the following:
- Mechanisms of action: JAK-STAT and HDAC6 inhibitor, PPAR alpha/delta activator
- Cell-based studies: Dose-dependent anti-inflammatory activities
- In vivo studies: Lowered systemic, liver, joint, and gut inflammation
- Human epidemiological studies: Lower CRP
Selected References
- Kurotani, K. et al. Even- and odd-chain saturated fatty acids in serum phospholipids are differentially associated with adipokines. PLOS ONE 12, e0178192 (2017).
- Matthan, N.R. et al. Spillover effects of a family-based childhood weight-management intervention on parental nutrient biomarkers and cardiometabolic risk factors. Curr Dev Nutrition 6:nzab152 (2022).
- Pranger et al. Potential Biomarkers for Fat from Dairy and Fish and Their Association with Cardiovascular Risk Factors: Cross-Sectional Data from the LifeLines BioBank and Cohort Study. Nutrients 11, 1099 (2019).
- Singh et al. Anti-Inflammatory Effect of Dietary Pentadecanoic Acid Supplementation on Inflammatory Bowel Disease in SAMP1/YitFc Mice. Nutrients 16, no. 17 (2024): 3031.
- To, N.B., Nguyen, Y.T., Moon, J.Y., Ediriweera, M.K., Cho, S.K. Pentadecanoic acid, an odd-chain fatty acid, suppresses the stemness of MCF-7/SC human breast cancer stem-like cells through JAK2/STAT3 signaling. Nutrients 12, 1663 (2020).
- Venn-Watson, S.K., Butterworth, C.N. Broader and safer clinically-relevant activities of pentadecanoic acid compared to omega-3: Evaluation of an emerging essential fatty acid across twelve primary human cell-based disease systems. PLOS ONE https://doi.org/10.1371/journal.pone.0268778 (2022).
- Venn-Watson, S., Lumpkin, R., Dennis, E.A. Efficacy of dietary odd-chain saturated fatty acid pentadecanoic acid parallels broad associated health benefits in humans: could it be essential? Sci Rep 10:8161 (2020).
- Venn-Watson, S., Reiner, J., Jensen, E.D. Pentadecanoylcarnitine is a newly discovered endocannabinoid with pleiotropic activities relevant to supporting physical and mental health.Scientific Reports 12:13717 (2022).
- Wu, C.L. et al. Serum and synovial fluid lipidomic profiles predict obesity-associated osteoarthritis, synovitis, and wound repair. Scientific Rep 7:44315 (2017).
- Wu et al. Galactooligosaccharides and Limosilactobacillus reuteri synergistically alleviate gut inflammation and barrier dysfunction by enriching Bacteroides acidifaciens for pentadecanoic acid biosynthesis. Nature Communications 15:9291 (2024).
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Heart Health
Studies on the relevance of C15:0 to heart health have shown the following:
- Mechanisms of action: AMPK activator & JAK-STAT inhibitor
- Cell-based studies: Dose-dependent anti-inflammatory activities in human vascular cells
- In vivo studies: Lowered inflammation and cholesterol
- Human epidemiological studies: Lower cholesterol, lower triglycerides, lower risk of hypertension, lower risk of cardiovascular disease, including coronary heart disease, lower risk of incident carotid plaques
- Randomized clinical trials: Lower LDL cholesterol, lower arterial stiffness (cfPWV)
Selected References
- Arghavani et al. Impact of dairy intake on circulating fatty acids and associations with blood pressure: A randomized crossover trial. Nutr Metab, Cardiovasc Dis In Press (2025).
- Biong, A.S., Veierod, M.B., Ringstad, J., Thelle, D.S., Pedersen, J.I. Intake of milk fat, reflected in adipose tissue fatty acids and risk of myocardial infarction: a case-control study. Eur J Clin Nutr 60, 236-244 (2006).
- Chen et al. Associations between serum pentadecanoic acid (C15:0) and heptadecanoic acid (C17:0) levels and hypertension: a cross-sectional analysis of NHANES data. Lipids Health Dis 24, 219 (2025)
- Chooi et al. Effect of An Asian-Adapted Mediterranean Diet and Pentadecanoic Acid on Fatty Liver Disease: The TANGO Randomized Controlled Trial. American Journal of Clinical Nutrition 119, 788-799 (2024).
- Djousse, L. et al. Serum individual nonesterified fatty acids and risk of heart failure in older adults. Cardiology 146:351-358 (2021).
- Huang et al. Associations of erythrocyte membrane fatty acids with blood pressure in children. Clin Nutr 46, 30-36 (2025).
- Kaikkonen, J.E. et al. Associations of serum fatty acid proportions with obesity, insulin resistance, blood pressure and fatty liver: the cardiovascular risk in young Finns study. J Nutr 151, 970-978 (2021).
- Khaw, K.T., Friesen, M.D., Riboli, E., Luben, R. & Wareham, N. Plasma phospholipid fatty acid concentration and incident coronary heart disease in men and women: the EPIC-Norfolk prospective study. PLOS Med 9, e1001255 (2012).
- Li et al. Saturated Fatty Acid Biomarkers and Risk of Cardiometabolic Diseases: A Meta-Analysis of Prospective Studies. Frontiers in Nutrition 9, 963471 (2022).
- Liang, J., Zhou, Q., Amakye, W.K., Su, Y., Zhang, Z. Biomarkers of dairy fat intake and risk of cardiovascular disease: a systematic review and meta analysis of prospective studies. Crit Rev Food Sci Nutr 58, 1122-1130 (2018).
- Pranger et al. Potential Biomarkers for Fat from Dairy and Fish and Their Association with Cardiovascular Risk Factors: Cross-Sectional Data from the LifeLines BioBank and Cohort Study. Nutrients 11, 1099 (2019).
- Sjogren et al. Milk-Derived Fatty Acids Are Associated with a More Favorable LDL Particle Size Distribution in Healthy Men. Journal of Nutrition 143, no. 7 (2004): 1729–1735.
- Trieu, K. et al. Biomarkers of dairy fat intake, incident cardiovascular disease, and all-cause mortality: A cohort study, systematic review, and meta-analysis. PLoS Med 18:e1003763 (2021).
- Venn-Watson, S., Lumpkin, R., Dennis, E.A. Efficacy of dietary odd-chain saturated fatty acid pentadecanoic acid parallels broad associated health benefits in humans: could it be essential? Sci Rep 10:8161 (2020).
- Venn-Watson, S.K., Butterworth, C.N. Broader and safer clinically-relevant activities of pentadecanoic acid compared to omega-3: Evaluation of an emerging essential fatty acid across twelve primary human cell-based disease systems. PLOS ONE https://doi.org/10.1371/journal.pone.0268778 (2022).
- Venn-Watson et al. The Cellular Stability Hypothesis: Evidence of Ferroptosis and Accelerated Aging-Associated Diseases as Newly Identified Nutritional Pentadecanoic Acid (C15:0) Deficiency Syndrome. Metabolites 14, 355 (2024).
- Warensjo, E. et al. Estimated intake of milk fat is negatively associated with cardiovascular risk factors and does not increase the risk of a first myocardial infarction. A prospective case-control study. Br J Nutr 91, 635-642 (2004).
- Xiao, C. et al. Plasma biomarkers of dairy intake and gut microbiome, and their association with incident carotid plaque: a prospective cohort study. BMC Med 23, 468 (2025).
- Zhang et al. Untargeted Metabolomics Analysis Using UHPLC-Q-TOF/MS Reveals Metabolic Changes Associated with Hypertension in Children. Nutrients 15, 836 (2023).
- Zheng, J.S. et al. Association between plasma phospholipid saturated fatty acids and metabolic markers of lipid, hepatic, inflammation and glycaemic pathways in eight European countries: a cross-sectional analysis in the EPIC-Interact study. BMC Med 15, 203 (2017).
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Anti-Cancer Activities
Studies on the relevance of C15:0 to anti-cancer properties have shown the following:
- Mechanisms of action: JAK-STAT and HDAC6 inhibitor
- Cell-based studies: Dose-dependent anticancer activities with human cancer cell lines. Cell-based phenotypic profiling predicts C15:0 as having anticancer activities mimicking gemcitabine and paclitaxel
- In vivo studies: Smaller tumor size in rodents, improved upon gemcitabine alone
- Human epidemiological studies: Lower risk of having or developing certain types of cancers, including colorectal and breast cancer
Selected References
- Budczies, J. et al. Remodeling of central metabolism in invasive breast cancer compared to normal breast tissue – a GC-TOFMS based metabolomics study. BMC Genomics 13, 334 (2012).
- Ediriweera, M.K. et al. Odd-chain fatty acids as novel histone deacetylase 6 (HDAC6) inhibitors. Biochimie 186:147-156 (2021).
- Jee, S.H. et al. Clinical relevance of glycerophospholipid, sphingomyelin and glutathione metabolism in the pathogenesis of pharyngolaryngeal cancer in smokers: the Korean Cancer Prevention Study – II. Metabolomics 12, 164 (2016).
- Jiang et al. Association Between Dietary Intake of Saturated Fatty Acid Subgroups and Breast Cancer Risk. Food Function 19, 2282–2294 (2024).
- Hori, A. et al. Serum sphingomyelin species profile is altered in hematologic malignancies. Clin Chim Acta 514, 29-33 (2021).
- Kruchinina, M., Gromov, A., Prudnikova, Y., Shashkov, M., Sokolova, A., Kruchinin, V. Erythrocyte membrane fatty acids as the potential biomarkers for detection of early-stage and progression of colorectal cancer. Ann Oncol 29, Suppl 5 (2018).
- Li, F., Boateng, I.D., Yang, X., Li, Y. Extraction, purification, and elucidation of six ginkgo homologs from Ginkgo biloba sarcotesta and evaluation of their anticancer activities. Molecules 27, 7777 (2022).
- Li, Y. et al. Design, synthesis and antitumor activity study of a gemcitabine prodrug conjugated with a HDAC6 inhibitor. Bioorg Med Chem Letters 72:128881 (2022).
- Lu et al. Comprehensive Investigation on Associations Between Dietary Intake and Blood Levels of Fatty Acids and Colorectal Cancer Risk. Nutrients 15, 730 (2023).
- Qi, S. et al. High-resolution metabolomic biomarkers for lung cancer diagnosis and prognosis. Sci Rep 11, 11805 (2021).
- Teng et al. C15:0 and C17:0 Partially Mediate the Association of Milk & Dairy Products with Bladder Cancer Risk. Journal of Dairy Science 107, 2586-2605 (2024).
- To, N.B., Nguyen, Y.T., Moon, J.Y., Ediriweera, M.K., Cho, S.K. To, N.B., Nguyen, Y.T., Moon, J.Y., Ediriweera, M.K., Cho, S.K. Pentadecanoic acid, an odd-chain fatty acid, suppresses the stemness of MCF-7/SC human breast cancer stem-like cells through JAK2/STAT3 signaling. Nutrients 12, 1663 (2020).
- To, N.B., Truong, V.N.P., Ediriweera, M.K., Cho, S.K. Effects of combined pentadecanoic acid and tamoxifen treatment on tamoxifen resistance in MCF-7/SC breast cancer cells. Int J Mol Sci 23, 11340 (2022).
- Venn-Watson, S.K., Butterworth, C.N. Broader and safer clinically-relevant activities of pentadecanoic acid compared to omega-3: Evaluation of an emerging essential fatty acid across twelve primary human cell-based disease systems. PLOS ONE https://doi.org/10.1371/journal.pone.0268778 (2022).
- Xu et al. Akkermansia muciniphila-derived pentadecanoic acid enhances oxaliplatin sensitivity in gastric cancer by modulating glycolysis. Pharmacological Research 206, 107278 (2024).
- Zhang et al. Redox-Responsive Paclitaxel-Pentadecanoic Acid Conjugate Encapsulated Human Serum Albumin Nanoparticles for Cancer Therapy. International Journal of Pharmaceutics 635, 122761 (2023).
- Zhao et al. Analysis of Serum Exosome Metabolites Identifies Potential Biomarkers for Human Hepatocellular Carcinoma. Metabolites 14, 462 (2024).
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Brain, Mood & Sleep Health
Studies on the relevance of C15:0 to cognitive, mood & sleep health have shown the following:
- Mechanisms of action: Dose-dependent FAAH and MAO-B inhibitor
- Cell-based studies: Cell-based phenotypic profiling predicts C15:0 as having antidepressant activities mimicking bupropion
- Human epidemiological studies: Higher C15:0 levels associated with better cognitive scores among people with type 2 diabetes, as well as lower anxiety
- Randomized clinical trial: Women with MASLD who followed a low-calorie Mediterranean Diet and were supplemented with C15:0 daily for 12 weeks had the most significant decreases in anxiety and depression.
Selected References
- Brydges, C.R. et al. Metabolomic and inflammatory signatures of symptoms dimensions in major depression. Brain Behav Immun 102, 42-52 (2022).
- Fonteh, A.N., Cipolio, M., Chiang, J., Arakaki, X., Harrington, M.G. Human cerebrospinal fluid fatty acid levels differ between supernatant fluid brain-derived nanoparticle fractions, and are altered in Alzheimer’s disease. PLOS ONE 9, e100519 (2014).
- Nisbett KE, Pinna G. Emerging therapeutic role of PPAR-α in cognition and emotions. Frontiers Pharmacol 9:998 (2018).
- Salamanca-Sanabria et al. Potential effects of Asian-adapted Mediterranean diet in depression and anxiety among women with metabolic dysfunction-associated steatotic liver disease: a secondary analysis. Frontiers Nutrition 12 (2025).
- Shen et al. The Associations Between Plasma Fatty Acid and Cognitive Function Mediated by Inflammation in Patients with Type 2 Diabetes Mellitus. Diabetes, Metabolic Syndrome and Obesity 15, 1423-1436 (2022).
- Shirai, H. et al. PPAR alpha is a potential therapeutic target of drugs to treat circadian rhythm sleep disorders. Biochem Biophys Res Communications. 357:679-682 (2007).
- Venn-Watson, S.K., Jensen, E.D. Aging-associated amyloid-beta plaques and neuroinflammation in bottlenose dolphins (Tursiops truncatus) and novel cognitive health-supporting roles of pentadecanoic acid (C15:0). Int J Mol Sci 26:3746 (2025).
- Venn-Watson, S.K., Butterworth, C.N. Broader and safer clinically-relevant activities of pentadecanoic acid compared to omega-3: Evaluation of an emerging essential fatty acid across twelve primary human cell-based disease systems. PLOS ONE https://doi.org/10.1371/journal.pone.0268778 (2022).
- Venn-Watson, S., Lumpkin, R., Dennis, E.A. Efficacy of dietary odd-chain saturated fatty acid pentadecanoic acid parallels broad associated health benefits in humans: could it be essential? Sci Rep 10:8161 (2020).
- Venn-Watson, S., Reiner, J., Jensen, E.D. Pentadecanoylcarnitine is a newly discovered endocannabinoid with pleiotropic activities relevant to supporting physical and mental health.Scientific Reports 12:13717 (2022).
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