| Recruiting | Higher and Standard Doses of Enteral Zinc Supplementation in Very Preterm Infants NCT06219525 | Prince of Songkla University | N/A |
| Completed | Effect of Household Use of Multiple Micronutrient-fortified Bouillon on Micronutrient Status Among Women and C NCT05178407 | University of California, Davis | N/A |
| Recruiting | Effects of Daily Beef Intake, as a Component of a Heart-Healthy Diet on Cellular Zinc NCT05236374 | University of California, Davis | N/A |
| Completed | Zinc Intervention in Elderly for Prevention of Pneumonia NCT05527899 | Tufts University | Phase 2 / Phase 3 |
| Terminated | Zinc-AA Supplementation During Pregnancy & Lactation to Assess Effects on ASD Prevalence in Offspring NCT04983667 | Instituto Tecnologico y de Estudios Superiores de Monterey | N/A |
| Completed | Zinc Supplementation Impact in Acute COVID-19 Clinical Outcomes NCT05778383 | Parc de Salut Mar | Phase 4 |
| Unknown | Zinc Deficiency in Dilated Cardiomyopathy NCT04860921 | Assiut University | — |
| Active Not Recruiting | Egg Intervention During Pregnancy in Indonesia NCT04694235 | SEAMEO Regional Centre for Food and Nutrition | N/A |
| Completed | Nutritional Status and Bouillon Use in Northern Ghana NCT04632771 | University of California, Davis | — |
| Completed | Evaluation of the Relationship Between Zinc Vitamin D and b12 Levels in the Covid-19 Positive Pregnant Women NCT04407572 | Kanuni Sultan Suleyman Training and Research Hospital | — |
| Completed | Zinc Effect on Inflammation and Cardiovascular Risk in HIV NCT05085834 | University Hospitals Cleveland Medical Center | EARLY_Phase 1 |
| Completed | Zinc Supplementation During Pregnancy: Analysis of Maternal Serum Zinc, Cord Blood Osteocalcin and Neonatal Bi NCT04559152 | Universitas Sumatera Utara | N/A |
| Unknown | Effect Of Multiple Biofortified Food Crops On Micronutrient Status And Immune Function Among Indian Infants an NCT02648893 | Cornell University | N/A |
| Unknown | Sub Regional Micronutrient Survey in Ethiopia NCT03353662 | Swiss Federal Institute of Technology | — |
| Completed | Zinc Supplement Before or With Food in Generally Healthy Men NCT03619421 | UCSF Benioff Children's Hospital Oakland | N/A |
| Completed | Daily Zinc Supplement Effect on Prevention of Diarrhea and Acute Respiratory Infections in Children Less Than NCT05002101 | Ain Shams University | Phase 4 |
| Completed | The Efficacy of Zinc-biofortified Rice in Bangladeshi Children NCT03079583 | Swiss Federal Institute of Technology | N/A |
| Completed | ZIMBA: Clinical Trial in Paediatric Obesity NCT03283813 | Azienda Ospedaliero Universitaria Maggiore della Carita | Phase 4 |
| Completed | Using Eggshell Calcium to Mitigate Fluorosis in Ethiopia NCT03355222 | University of Saskatchewan | N/A |
| Completed | Effect of Iron/Zinc-Biofortified Pearl Millet on Growth and Immunity in Children Aged 12-18 Months in India NCT02233764 | Cornell University | N/A |
| Unknown | Effect of Zinc and Selenium Supplementation on HIV+ Individuals on Antiretroviral Treatment. NCT03421314 | Instituto Nacional de Enfermedades Respiratorias | N/A |
| Completed | Zinc Supplementation in Children With Sickle Cell Disease in Western Kenya NCT03293641 | Lucas Otieno Tina, MD MSc | N/A |
| Completed | Effects of EED on Zn Absorption and Retention in Children From a Standard Dose NCT02760095 | University of Colorado, Denver | — |
| Completed | Effects of EED on Zn Absorption and Retention in Children From a MNP NCT02758444 | University of Colorado, Denver | N/A |
| Completed | Dose Adjustment Study of NPC-02 in Patients With Zinc Deficiency NCT02321865 | Nobelpharma | Phase 3 |
| Completed | A Randomized, Double-Blind, Placebo Controlled Study of NPC-02 in Patients With Zinc Deficiency NCT02337569 | Nobelpharma | Phase 3 |
| Completed | Clinical Trial to Determine the Bioavailability of Three Different Zinc Preparations NCT02292303 | Lesaffre International | N/A |
| Completed | Efficacy of Zn Biofortified Wheat in Improving Zn Status in Indian School Children With Low Zn Status NCT02241330 | Swiss Federal Institute of Technology | N/A |
| Completed | Correction of Zinc Deficiency in Children With Chronic Kidney Disease and Kidney Transplant NCT02126293 | Hamilton Health Sciences Corporation | Phase 3 |
| Completed | Assessment of Zinc Intake From Enriched Water and Other Dietary Sources in Kisumu, Kenya NCT02162238 | Wageningen University | N/A |
| Completed | Improvement of Tinnitus After Oral Zinc on Patients With Noise-induced Hearing Loss NCT02951715 | Chang Gung Memorial Hospital | N/A |
| Completed | Water-based Zinc Efficacy Trial in Beninese Shool Children NCT01790321 | Prof. Michael B. Zimmermann | N/A |
| Completed | Evaluation of Human Zinc Absorption From Wheat-based Meals NCT01775319 | Swiss Federal Institute of Technology | N/A |
| Terminated | Water-based Zinc Intervention Trial in Zinc Deficient Children NCT01472211 | Swiss Federal Institute of Technology | EARLY_Phase 1 |
| Completed | Impact of Preventive and Therapeutic Zinc Supplementation Programs Among Young Children NCT00944359 | University of California, Davis | N/A |
| Completed | Zinc and the Synthesis of Zinc Binding Proteins (Protocol B) NCT01221129 | University of Florida | — |
| Completed | An Efficacy Trial of Iron, Zinc and Vitamin A Fortified Rice in Children in Satun, Thailand NCT01061307 | Swiss Federal Institute of Technology | EARLY_Phase 1 |
| Completed | Impact of Mass Zinc Fortification Programs on Plasma Zinc Concentration NCT00944723 | University of California, Davis | Phase 4 |
| Completed | Effects of Liquid Zinc Supplementation and Dispersible Zinc Tablets on Plasma Zinc Concentration NCT00944853 | University of California, Davis | N/A |
| Completed | Impact of Targeted Zinc Fortification Programs on Plasma Zinc Concentration NCT00944398 | University of California, Davis | Phase 4 |
| Completed | A Novel Bio-marker of Zinc Status NCT01062347 | International Centre for Diarrhoeal Disease Research, Bangladesh | Phase 1 |
| Completed | Effects of Initiation and Discontinuation of Short Term Zinc Supplementation on Plasma Zinc Concentration NCT00459485 | University of California, Davis | Phase 4 |
| Completed | Zinc, Iron, Vitamin A and Psychosocial Care for Child Growth and Development NCT02319499 | Indonesia University | Phase 3 |