Clinical trials: Nutritional Requirements
Healthy
The CARO Study - Bioefficacy of Beta-Carotene in Oil and in a Mixed Diet in Healthy Subjects
A controlled dietary intervention study will be carried out based on the stable isotope method the investigators have developed to quantify both the absorption of beta-carotene and its bioconversion to retinol in oil and in a…
- Trial name
- NCT00128752
- Testing
- absorption and conversion of beta-carotene in human gastrointestinal (GI) tract
- Where
- Netherlands
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Radboud University Medical Center
Deglutition Disorders
Design and Development of a Functional Plant-based Beverage Formulated According to the Main Nutritional Guides for Early Elderly Requirements to Improve Nutritional Status and Immunity for the Early Elderly People to Get Well-healthy Ageing
Populations around the world are aging and this demographic transition will impact almost every aspect of society. Furthermore, the COVID-19 pandemic has highlighted the seriousness of gaps in policies, systems and services.
- Trial name
- IMMUGOLD (NCT06445309)
- Testing
- Sensory test of functional plant-based drink
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University Rovira i Virgili
Anovulation, Amenorrhea
Effects of Gynecological Age on LH Sensitivity to Energy Availability
The purpose of this experiment is to investigate whether the dependence of luteinizing hormone pulsatility on energy availability declines during adolescence.
- Conditions
- Anovulation, Amenorrhea, Infertility, Starvation
- Trial name
- NCT00260286
- Testing
- Energy availability
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Ohio University
Obesity, Overweight
Dietary Protein Requirements on Unbalanced Diets
The objective of this study is to determine ad libitum daily energy and protein intake, energy balance and appetite profile in response to protein/carbohydrate and fat ratio over 12 consecutive days, also as a function of age…
- Trial name
- NCT01320189
- Testing
- Differences in protein content of meals
- Where
- Netherlands
- Volunteers
- 81 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
Nutrition Status, Nutritional Requirements
Effects of Vitamin D on Skeletal Muscle Strength in Resistance Trained Adult Females
The majority of vitamin D research has been done in non-athletic populations, particularly older populations, to analyze muscle weakness, pain, balance, and fractures.
- Conditions
- Nutrition Status, Nutritional Requirements, Sports Nutritional Sciences
- Trial name
- NCT05489666
- Testing
- Nature Made Vitamin D3 5,000 IU, 125mcg
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Auburn University
Skeletal Dysplasia
Extreme Morphology and Metabolic Health
Researchers at the University of Bath are investigating the metabolism of individuals with extreme body size, including those with skeletal dysplasia (commonly known as dwarfism), to manage health risks such as heart disease.
- Trial name
- NCT05991609
- Where
- United Kingdom
- Volunteers
- 102 people, healthy volunteers welcome
- Sponsor
- University of Bath
Focus: Nutritional Requirements for Infants
Assessment of Arachidonic Acid Supplementation in Infant Formula on the Immune Response of Infants
The immune system of newborn infants is immature with low activity of both innate and acquired immune reactions. Early nutrition has an impact on early immune responses.
- Trial name
- NCT02092857
- Testing
- Arachidonic acid (25 mg/100 kcal ), Arachidonic acid (34 mg/100 kcal)
- Where
- Canada
- Volunteers
- 89 people, healthy volunteers welcome
- Sponsor
- University of Alberta
Obesity, Type 2 Diabetes
Characterization of Metabolic Biomarkers in Varying Subjects
Traditional dietary, lifestyle, behavioral and pharmacologic treatment strategies have proven relatively ineffective for treating obesity, and once metabolic abnormalities such as Type 2 Diabetes (T2D) develop, definitive…
- Trial name
- NCT01199692
- Where
- United States
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- CPL Associates
Iron Absorption
Dietary Iron Requirements
Dietary Reference Intakes (DRIs) for iron are based on a relatively small number of studies in European populations. This research study will determine iron needs in a representative sample of adults living in the US using the…
- Trial name
- NCT07139821
- Testing
- Stable iron isotope
- Where
- 2 sites in United States
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Pennington Biomedical Research Center
Nutritional Requirements
Study on Dietary Intake Levels of Iodine for 3-6 Years Old Pre-school Children
Iodine as an essential trace element for human, both excessive and insufficient intake would be harmful for human health. As susceptible population, children will be more sensitive to adverse effects caused by inadequate intake…
- Trial name
- NCT06074770
- Testing
- no intervention
- Where
- China
- Volunteers
- 2,650 people, healthy volunteers welcome
- Sponsor
- Chen Wen
Vitamin D Deficiency
Nutritional Requirements for Vitamin D in Pregnant Women
Randomised, placebo-controlled dose-response intervention study with vitamin D3 in pregnant women.
- Trial name
- DMAT (NCT02506439)
- Testing
- 10 mcg Vitamin D3, 20 mcg Vitamin D3
- Where
- 2 sites in Ireland
- Volunteers
- 144 people, healthy volunteers welcome
- Sponsor
- University College Cork
Vitamin A Deficiency
Estimating Average Vitamin A Requirements in Indonesian and American Women
Women of reproductive age had their vitamin A stores estimated by retinol isotope dilution and then were given vitamin A supplements near the US vitamin A RDA or placebo for 42(USA) or 60 (Indonesia) days, after which retinol…
- Trial name
- NCT04123210
- Testing
- Vitamin A supplement
- Where
- 2 sites in United States, Indonesia
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Iron Deficiency Anemia of Pregnancy
Adiposity and Iron Requirements in Pregnancy
This study aims to explore how body fat influences the response to either 25 or 50 mg of daily iron supplements during pregnancy.
- Trial name
- ADIPREG (NCT06425796)
- Testing
- Adiposity and Iron Requirements in Pregnancy (ADIPREG)
- Where
- 3 sites in United Kingdom
- Volunteers
- 312 people, healthy volunteers welcome
- Sponsor
- University of Ulster
Vitamin D Deficiency
Inter-relationship Between Vitamin D Requirements and Calcium Intake in Older Adults
This winter-based placebo-controlled, single-dose vitamin D randomized controlled trial (RCT) aims to examine the impact of various levels of habitual calcium intake on dietary vitamin D requirements in older adults stratified by…
- Trial name
- VitD-Ca (NCT01990872)
- Testing
- Vitamin D3 (20 micrograms/day)
- Where
- Ireland
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- University College Cork
Nutritional Deficiency, Insomnia
Magnesium Nutrition and Sleep Behavior in Older Adults
Insomnia is not a natural part of aging but is higher in older adults because of a variety of factors common in later life. One of these factors may be a deficient magnesium status.
- Trial name
- NCT00833092
- Testing
- Sugar Pill, magnesium
- Where
- United States
- Volunteers
- 111 people, healthy volunteers welcome
- Sponsor
- USDA Grand Forks Human Nutrition Research Center
Vitamin D Deficiency
Establishing the Vitamin D Requirements During Lactation
The purpose of this study is to determine the effectiveness and safety of maternal and infant vitamin D supplementation as a function of ethnicity and latitude in the prevention of vitamin D deficiency in the breastfeeding…
- Trial name
- NCT00412074
- Testing
- 400 IU Vitamin D3 (cholecalciferol), 2400 IU Vitamin D3 (cholecalciferol), 6400 IU Vitamin D3 (cholecalciferol)
- Where
- 2 sites in United States
- Volunteers
- 460 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Vitamin D Deficiency
Evaluation of Vitamin D Requirements During Pregnancy
The purpose of this study is to determine the effectiveness of vitamin D supplementation during pregnancy starting at the beginning of the second trimester.
- Trial name
- NCT00292591
- Testing
- cholecalciferol (vitamin D3), cholecalciferol
- Where
- United States
- Volunteers
- 501 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Iodine Deficiency, Nutritional Requirements
An Iodine Balance Experiment
A 4-week study was conducted in 25 Chinese euthyroid women. Unified diets with different iodine contents (cooked with non-iodized salt or iodized salt) were provided in two different periods.
- Trial name
- NCT03279315
- Testing
- iodized table salt, non-iodized table salt
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Tianjin Medical University
Infant Formula, Growth
Lower Protein Intake and Long-term Risk of Obesity and Cardiovascular Disease
The primary objective of this study is to investigate if consumption of lower protein formula can slow the rate of weight gain of formula-fed infants between 3 and 12 months of age.
- Trial name
- BabyGrowth (NCT03456934)
- Testing
- Modified infant formula, Standard infant formula
- Where
- United Kingdom
- Volunteers
- 249 people, healthy volunteers welcome
- Sponsor
- Société des Produits Nestlé (SPN)
Nutritional Requirements
Clinical Effects of a Nucleotides-Supplemented Infant Formula
The study hypothesis is that different concentrations of nucleotides' supplementation of an infant formula might affect differently growth and/or other clinical parameters in neonates.
- Trial name
- NCT00292812
- Testing
- Nutritional supplementation (nucleotides)
- Where
- Israel
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Soroka University Medical Center