| Not Yet Recruiting | VITAL-IMPACT: Improving Cardiometabolic Health in Black Individuals Through Therapeutic Augmentation of Cyclic NCT06320951 | University of Alabama at Birmingham | Phase 2 |
| Not Yet Recruiting | A Clinical Study to Evaluate the Absorption, Metabolism, and Excretion of Oral [14C]GS1-144 in Healthy Postmen NCT07537231 | Changchun GeneScience Pharmaceutical Co., Ltd. | Phase 1 |
| Recruiting | Tracing Of Real-time glu13Cose Metabolism in Human Immune Cells NCT06930976 | Vanderbilt University Medical Center | N/A |
| Recruiting | VITAL: Vaccination, Immunity, Time-restricted Eating, Aging and Lifestyle NCT07000708 | Charite University, Berlin, Germany | N/A |
| Recruiting | Caloric Balance Markers Study NCT07141537 | Institute for Systems Biology | — |
| Recruiting | Studying Phenotypic Risks for Obesity and Underlying Traits in Young Infants NCT07096011 | Pennington Biomedical Research Center | — |
| Recruiting | The Impact of Nicotinamide Mononucleotide Sustained-release Tablets on Immunosenescence and Metablism in Middl NCT06907329 | Qing Su | N/A |
| Recruiting | GLYLO Supplement Pilot Trial on Glycation and Aging in Postmenopausal Women NCT06813261 | Buck Institute for Research on Aging | N/A |
| Recruiting | Evaluation of Blood and Cardiac Protein O-GlcNAcylation Levels in Cardiac Surgery in Children NCT06754709 | Nantes University Hospital | — |
| Completed | Effect of Caloric Content and Timing of Meal on Postprandial Substrate Oxidation and Pulse Wave Analysis NCT07122765 | George Washington University | N/A |
| Active Not Recruiting | Ketone Esters and Metabolism During Recovery from Endurance Exercise NCT06846840 | University of Bath | N/A |
| Completed | The Impact of Short-Chain Fatty Acids on Gut Hormone Release After Delivery in the Small and Large Intestine o NCT06686888 | KU Leuven | N/A |
| Recruiting | Identifying Wearable Biomarkers to Monitor Dietary Intake NCT06398340 | Imperial College London | N/A |
| Completed | The Effects of Gyngerlean Supplementation on Energy Expenditure NCT06805201 | Nova Southeastern University | N/A |
| Recruiting | Treatment of Sleep Apnea to Improve Metabolic Health NCT06848647 | Uppsala University | — |
| Recruiting | RMR Monitoring Feasibility and Acceptability NCT06467578 | University of British Columbia | N/A |
| Completed | Duration of Physical Inactivity and Postprandial Lipid Metabolism NCT06407050 | University of Texas at Austin | N/A |
| Completed | Open-label Study of the Absorption, Metabolism, and Excretion of [14C]-Simufilam Following a Single Oral Dose NCT06195319 | Cassava Sciences, Inc. | Phase 1 |
| Unknown | Evaluation of the Response to Hypoxia at Rest and During Exercise in a Healthy Subject After a Cryostimulation NCT06174480 | Poitiers University Hospital | N/A |
| Completed | Study of Pharmacokinetics and Metabolism on [(14)C]ADC189 NCT06360796 | Jiaxing AnDiCon Biotech Co.,Ltd | Phase 1 |
| Completed | The Systemic Concentration of Short-Chain Fatty Acids After Delivery in the Small and Large Intestine of Healt NCT06082726 | KU Leuven | N/A |
| Completed | Inactivity Duration on Lipid Metabolism NCT06033898 | University of Texas at Austin | N/A |
| Completed | Cognitive, Mood, Anti-Inflammatory and Metabolic Effects of Chronic Oyster Mushroom Intervention in Older Adul NCT06846827 | University of Reading | N/A |
| Completed | A Single-Group Study to Examine the Efficacy of a Gut Health Supplement to Increase Metabolism, Improve Gut He NCT06023082 | Gut Health, UAB | N/A |
| Completed | Effect of Short-chain Fatty Acids on Aerobic Endurance NCT06054607 | United States Army Research Institute of Environmental Medicine | N/A |
| Unknown | Physical Activity Level and Hormonal Status on Energy Metabolism and Nutritional Responses NCT05944653 | University Hospital, Clermont-Ferrand | — |
| Unknown | The Impact of Plant-Based Protein-rich Food Products With Varying Degree of Processing on the Human Gut Microb NCT05885750 | University of Turku | N/A |
| Unknown | Metabolic Responses to Exercise and Recovery NCT06088108 | University College, London | N/A |
| Unknown | Multi-level Molecular Profiling of Stress Exposure Under Standardized Food Intake: A Clinical Study NCT06016530 | Dr. Nils Gassen | N/A |
| Recruiting | ImpACt of Very High Protein Content Enteral nUtrition Formulas on Critically Ill MUltipLe trAuma paTiEnts NCT05647135 | Romanian Society for Enteral and Parenteral Nutrition | — |
| Completed | Bioavailability of Aronia Berry Polyphenols NCT05488886 | University of Wisconsin, Madison | N/A |
| Active Not Recruiting | Effects of Casein Protein on Metabolism When Taken Prior to Sleep and in the Morning NCT06250270 | Ohio University | EARLY_Phase 1 |
| Unknown | Effects of Novel Breathing Behavior Modification Yoga Positioning Integrated Program on Weight Loss NCT05488574 | Touro University Nevada | N/A |
| Unknown | Lactate Metabolism in the Hypoperfused Critically Ill NCT05582824 | University of Copenhagen | — |
| Completed | Activity, Adiposity, and Appetite in Adolescents 2 Intervention NCT05443347 | Children's Mercy Hospital Kansas City | N/A |
| Completed | Neurological, Inflammatory and Metabolic Effects of Acute Mushroom Intervention in Older Adults NCT05594329 | University of Reading | N/A |
| Recruiting | The Effects of Night Shift Work on Health Across the Menstrual Cycle NCT06683248 | Uppsala University | N/A |
| Recruiting | Cancer-associated Muscle Mass - Molecular Factors and Exercise Mechanisms NCT05307367 | University of Copenhagen | N/A |
| Unknown | Effects of IAP-EOGBSD on Offspring's Gut Microbiome and Immunity. NCT05738460 | Zhujiang Hospital | — |
| Recruiting | Assessment Metabolic Flexibility in Middle-aged Individuals: The Nutritional Impact of Cheese Consumption NCT06012227 | University of Cagliari | N/A |
| Completed | Metabolic Effects of a Thermogenic Ready-to-drink Beverage NCT05194475 | Texas Tech University | N/A |
| Completed | The Effect of a Plant Protein Isolate on Muscle Protein Synthesis in Humans at Rest and After Resistance Exerc NCT05020808 | University of Limerick | N/A |
| Completed | Validating a Novel Approach to Assess Metabolic Flexibility in a Respiratory Chamber NCT05110274 | Pennington Biomedical Research Center | N/A |
| Completed | A Study to Examine the Effect of a Thermogenic Energy Drink in Healthy Adults NCT05061797 | Rowdy Energy | N/A |
| Recruiting | HIIT vs MICT During Pregnancy and Health and Birth Outcomes in Mothers and Children NCT05009433 | Gdansk University of Physical Education and Sport | N/A |
| Completed | Interaction Between Cannabidiol, Meal Ingestion, and Liver Function NCT04971837 | Colorado State University | N/A |
| Completed | Impact of Amino Acids to Enhance Anabolism After Home-based Exercise NCT04850820 | University of Toronto | N/A |
| Recruiting | NAUTICAL: Effect of Natriuretic Peptide Augmentation on Cardiometabolic Health in Black Individuals NCT04055428 | University of Alabama at Birmingham | Phase 2 |
| Recruiting | Personalized Responses to Dietary Composition Trial 3 NCT04735835 | Zoe Global Limited | N/A |
| Unknown | Impact of Probiotics on Drug, Vitamin, and Hormone Metabolism NCT04281407 | University of Washington | N/A |
| Unknown | Comparison of the Q-NRG+ Indirect Calorimetry Device Versus the V(Max) Encore Device in Mechanically Ventilate NCT04482556 | Boston Children's Hospital | N/A |
| Completed | The Influence of Non-invasive Ventilation on Metabolism in Healthy Volunteers NCT04178694 | Universitair Ziekenhuis Brussel | N/A |
| Completed | Effects of a Caffeine- and Protein-Containing Coffee Beverage on Metabolism and Muscular Performance NCT04180787 | Texas Tech University | N/A |
| Unknown | Postprandial Effects of Milk Fats NCT04178681 | Wageningen University | N/A |
| Completed | To Evaluate the Efficacy of Capsimax on Metabolic Rate NCT04025346 | Vedic Lifesciences Pvt. Ltd. | N/A |
| Completed | Influence of Proteins on the Bioavailability of Carotenoids NCT04078646 | Luxembourg Institute of Health | N/A |
| Completed | Fiber Fermentation Kinetics Inside the Gut, and Utilization of Bacterial Metabolites NCT04013607 | Wageningen University | N/A |
| Completed | PREDICT 2: Personalized Responses to Dietary Composition Trial 2 NCT03983733 | Zoe Global Limited | N/A |
| Unknown | Gut Microbiota Pilot Study NCT03897023 | The Catholic University of Korea | — |
| Unknown | Gut Microbiota Pilot Study NCT03892590 | Armed Forces Goyang Hospital | — |
| Completed | Training Induced Muscle Exosome Release NCT04500769 | Yuan Wen | N/A |
| Completed | Effects of Probiotic and HIIT in Obese Women NCT06285578 | University of Taipei | N/A |
| Completed | Low Starch Dietary Education Program vs. Traditional Treatment for PCOS NCT03916263 | Texas Tech University Health Sciences Center | EARLY_Phase 1 |
| Completed | (KIWI) Speeding up a Slow Protein for Muscle Mass With Hay Kiwifruit NCT04356573 | University of Arkansas | N/A |
| Terminated | Metabolic Effects of Natriuretic Peptide Hormones NCT03397966 | VA Office of Research and Development | Phase 4 |
| Unknown | Personalised Responses to Dietary Composition Trial NCT03479866 | Guy's and St Thomas' NHS Foundation Trust | N/A |
| Completed | Whey vs Casein to Combat Post-inflammatory Protein and Muscle Waste in Acute Disease NCT03319550 | University of Aarhus | N/A |
| Completed | Choline Source, Gut Microbiota and Trimethylamine-N-oxide Response NCT04255368 | Utah State University | N/A |
| Completed | Personalized Dietary Program and Markers of Wellness NCT03424395 | Habit, LLC | N/A |
| Completed | Effect of Weight Loss on Body Composition and Metabolic Function in Women With Lipedema NCT03271034 | Washington University School of Medicine | N/A |
| Completed | Physiological and Perceptual Effects of Music on Resting Metabolic Rate (RMR) NCT03231163 | Old Dominion University | N/A |
| Completed | A New Model of Acute Febrile Disease NCT03158363 | University of Aarhus | N/A |
| Completed | Resistant Starch Wheat for Improved Metabolic Health NCT03082131 | USDA, Western Human Nutrition Research Center | N/A |
| Unknown | The Gut-lung Axis in Chronic Obstructive Pulmonary Disease NCT03236480 | Peking University People's Hospital | — |
| Completed | Pilot Data Collection for Activity, Adiposity, and Appetite in Adolescents NCT03157063 | Children's Mercy Hospital Kansas City | — |
| Active Not Recruiting | Nutrition and Inflammation in Patients With Head and Neck Cancer NCT03343236 | Uppsala University | — |
| Completed | Meal Schedule Effects on Circadian Energy Balance in Adults NCT04144426 | Vanderbilt University | N/A |
| Completed | Investigation of the Influence of Careless™, a Mangifera Indica Fruit Powder, on Microcirculation and Endothel NCT02511899 | Vital Solutions Swiss AG | N/A |
| Completed | Bioavailability and Metabolism of Avenanthramide: a Novel Oat Phytochemical NCT02415374 | PepsiCo Global R&D | N/A |
| Completed | Improving Resilience With Whole Grain Wheat NCT02385149 | Wageningen University | N/A |
| Withdrawn | Capsaicinoid Ingestion, Human Metabolism and Exercise NCT02139852 | University of Prince Edward Island | — |
| Withdrawn | Capsaicinoid Ingestion, Human Metabolism and Exercise (Phase 2) NCT02138630 | University of Prince Edward Island | N/A |
| Active Not Recruiting | Study of Clinical Response to Acute Metformin By Leveraging Evaluations During a Mixed Meal Tolerance Test for NCT02087826 | Massachusetts General Hospital | N/A |
| Unknown | BRAND'S® Essence of Chicken in the Promotion of Resilience and Resistance to Stress-associated Cognitive Inhib NCT02166931 | Taipei Medical University Shuang Ho Hospital | N/A |
| Completed | Leucine and Beta-hydroxy-beta-methylbutyrate (HMB) as Anabolic Nutrients After 36 Hours of Fasting NCT01840098 | University of Aarhus | N/A |
| Completed | Development of Novel Therapies for NIDDM NCT01905722 | Duke University | N/A |
| Unknown | Cognitive and Metabolic Effects of a Probiotic Supplement NCT02005003 | Uppsala University | N/A |
| Completed | Carbohydrate and Metabolism: a Pilot Study NCT02441296 | Umeå University | N/A |
| Completed | Sugar Sweetened Beverages (SSB)- Effects on Metabolism NCT01733563 | University of Zurich | N/A |
| Completed | High Intensity Interval Versus Continuous Moderate Intensity Training: Maximizing the Benefits of Exercise in NCT01935323 | University of Alabama at Birmingham | N/A |
| Completed | The Effect of Pharmacological Antilipolysis on the Metabolic Effects of Ghrelin NCT01209416 | University of Aarhus | N/A |
| Completed | Finding the Optimal Voluntary Exercise Parameters for Those Living With Quadriplegia NCT03146728 | University of Manitoba | — |
| Completed | Practicality of Intermittent Fasting and Its Effect on Markers of Aging and Oxidative Stress NCT02132091 | University of Florida | N/A |
| Completed | Effect of Exercise-Induced Weight Loss on Energy Metabolism NCT01775163 | Pennington Biomedical Research Center | — |
| Completed | Effects of Fructose and Exercise on Hepatic Lipid Metabolism NCT01121003 | University of Lausanne | N/A |
| Completed | Critical Periods of Exercise NCT01041820 | University of Alabama at Birmingham | N/A |
| Completed | Citrulline and Protein Metabolism in the Malnourished Elderly People NCT00714675 | Assistance Publique - Hôpitaux de Paris | N/A |
| Completed | Bad Genes or Genes Behaving Badly NCT01041664 | University of Alabama at Birmingham | — |
| Suspended | Assess the Absorption, Distribution, Metabolism and Excretion of AZD7325 After Intravenous and Oral Administra NCT00940641 | AstraZeneca | Phase 1 |
| Completed | Investigate Absorption, Metabolism and Excretion of [14C}-Proellex Following Single Oral Dose in Healthy Femal NCT00881062 | Repros Therapeutics Inc. | Phase 1 |
| Completed | RI-AME Study OF [ISOTHIAZOLYL-3-14C]-LURASIDONE NCT01082146 | Sumitomo Pharma America, Inc. | Phase 1 |
| Unknown | Metabolic Effects of Eccentric Endurance Training NCT00722696 | Vorarlberg Institute for Vascular Investigation and Treatment | N/A |
| Completed | Pharmacogenetics of Bupropion Metabolism NCT00791869 | University of California, San Francisco | — |
| Completed | Drug Interaction Study Between AZD3480 and Cytochrome P450 NCT00692510 | AstraZeneca | Phase 1 |
| Completed | Growth Hormone During Fasting.Signaltransduktion in Muscle and Adipose Tissue and Changes in Intrahepatic Lipi NCT00476879 | University of Aarhus | N/A |
| Completed | Metabolism of the Insecticide Permethrin NCT00572884 | University of California, Davis | N/A |
| Completed | Effect of Genetics on Metabolism of Efavirenz NCT00245986 | National Institutes of Health Clinical Center (CC) | Phase 4 |
| Completed | Aging, Lifestyle and Inflammation in Veterans Exercising NCT00667030 | University of Maryland, Baltimore | N/A |
| Completed | Pharmacokinetics of THCCOOH and Its Acyl-glucuronide After Intravenous Administration of THCCOOH NCT00176085 | Heidelberg University | — |
| Completed | Influence of Age and Sex on Alcohol Metabolism and Acute Responses NCT00070577 | National Institute on Alcohol Abuse and Alcoholism (NIAAA) | — |
| Completed | -Methylenedioxymethamphetamine (MDMA, Ecstasy) Induced Changes in Drug Metabolism: Gender and Genetic Polymorp NCT01447472 | Parc de Salut Mar | Phase 1 |
| Completed | Effects of Herbal Products on Metabolism and Hunger NCT00198952 | Johns Hopkins Bloomberg School of Public Health | N/A |