View clinical trials related to Iron Deficiency (Without Anemia).
Filter by:The aim of this study is to investigate the hepcidin hormone response after intravenous iron administration.
Iron deficiency (ID) is the most common micronutrient deficiency worldwide, and poor iron bioavailability is a major cause. While 30% of female athletes are affected by ID, and its consequences are highly relevant to athletic performance, ID affects women and children around the world with consequences just as relevant, if not more so (e.g. school performance, work capacity and thus wage earning). With poor iron absorption being a cause of ID in active women, it is especially important to discover simple ways to improve iron (Fe) uptake. While some studies have suggested that consumption of prebiotic fiber may improve Fe absorption in animal models, there have been few studies examining the effects of synbiotic supplementation (consumption of both a prebiotic and probiotic that work together) on Fe uptake in adult females (athletes and non-athletes). A recent pilot study demonstrated a substantial improvement in Fe uptake in female athletes after 4 and 8 weeks of synbiotic supplementation compared to placebo during Fe repletion with a low dose of ferrous sulfate (FeSO4). If synbiotic supplementation can improve the Fe bioavailability of FeSO4 (which is ~30%) in ID women during repletion of Fe status, it could possibly improve the Fe bioavailability of non-heme Fe sources, as well as mixed meals. Research Question: What is the effect of synbiotic supplementation (a supplement containing a prebiotic + a probiotic), compared to prebiotic supplementation or a placebo, on Fe uptake and the gut microbiome in ID athletes during low-dose Fe repletion? Hypothesis: In the proposed study, we hypothesize that synbiotic supplementation along with Fe repletion with a low dose of FeSO4 will have greatest impact on athletes' Fe uptake due to alterations in the microbiome, which will be assessed.
The goal of this study is to investigate the efficacy of a low dose iron supplement (6mg) compared to a placebo tablet.
Veganism and vegetarianism have clear benefits where they have a lower risk of many health issues. However, they also have a higher risk of nutrients and vitamin deficiency such as iron and vitamin B12. Iron can be found in plant-based food but in varying quantities, whereas vitamin B12 is mainly found in red meat, thus vegans and vegetarians can only take this vitamin in supplements such as tablets. In this study, the investigators are testing two interventions, the consumption of recipes with a certain iron amount to increase iron levels, and the consumption of vitamin B12 biofortified plants to increase serum B12 levels in vegan and vegetarian participants.
One of the most common nutritional deficiencies worldwide is iron deficiency. Iron deficiency is considered the main cause of anaemia in developing countries, including those in South America. The most recent surveys report that the prevalence of anaemia is as high as, 40 and 25% in Peru. Populations living at higher altitudes may have higher iron requirements, as body iron is naturally increased in long-term high-altitude residents to compensate for the lower oxygen in the air at high altitudes. However, the effects of chronic exposure to high altitude on iron status, body iron compartments and dietary iron requirements are incompletely understood. The primary objective of the proposed research is to determine iron bioavailability of iron from biofortified potatoes at different altitudes in populations of Andean descent. Human trials will be undertaken with volunteers in the Huancavelica region of Peru (elevation: 3676 meters) as well as in Lima (elevation close to sea level). The aim is to assess the effect of altitude on the absorption from a promising iron biofortified potato cultivar. These trials require incorporation of iron stable isotopes into the meals of the bio fortified potato and the analysis of the isotopes in subsequent blood (red blood cells) samples. Stable iron istotopes are considered the golden standard to assess human iron absorption and can be safely used as tracer substances in humans. The objective of the study is to compare, in volunteer females of childbearing age, the bioavailability of iron from bio-fortified potatoes in two locations of different altitudes and quantify the effect of altitude on iron bioavailability from a potato meal consumed over 5 consecutive days.
Iron deficiency is a common problem that is often treated with the administration of oral iron. Most of the iron is not absorbed and remains in the intestine, where it influences the balance of gut bacteria. This influence is usually undesirable and should be kept as small as possible. With lower iron doses, the amount of unabsorbed iron is smaller and therefore a smaller change in the intestinal bacteria composition is to be expected.
This is a randomized, double-blind, placebo-controlled, 8-week intervention clinical study assessing the safety and efficacy of a new low-dose liquid iron supplement in restoring iron levels to normal ranges without promoting constipating side-effects among healthy premenopausal women with non-anemic iron deficiency. The primary outcomes will be an Iron Panel of Serum Iron, Ferritin, Total iron-binding capacity, Transferrin saturation, Complete Blood Count, and high sensitivity - C-Reactive Protein. Secondary outcomes will be surveys on gastrointestinal distress/discomfort and well-being. Adverse events will also be reported.
The study participants will take 3 different doses of iron supplements at 8 am, on 3 different days. By taking blood samples in the morning and afternoon, the investigators will determine the effects of the iron supplements on plasma hepcidin and compare them to baseline plasma hepcidin values.
Iron deficiency is common in Switzerland and the main reason for anaemia. Nearly one in five premenopausal women suffers from iron deficiency. Low iron intake, reduced iron resorption or loss of blood are the main cause for iron deficiency. Symptoms of iron deficiency, for example fatigue, weakness, headache or exercise intolerance are primarily due to anaemia, but the same symptoms may also be present in non-anaemic patients with low serum ferritin. Consequently it is important to detect and treat non-anaemic iron deficiency. Common side effects of oral iron supplementation are primarily gastrointestinal symptoms like nausea, vomiting, diarrhea or abdominal pain. There is a positive correlation between appearance of gastrointestinal symptoms and administered iron dose. To date, only few studies have investigated effectiveness of low-dose iron supplementation in different target groups. The aim of this study is to investigate if low dose iron supplementation with 12mg iron per day for 8 weeks is sufficient to increase serum ferritin levels into a normal range in healthy premenopausal women suffering from non-anaemic iron deficiency
INTRODUCTION: Iron is a vital nutrient for many physiological processes including DNA production, oxygen transport and neuronal processes. However, several factors limit iron absorption including: limited bioavailability of iron (dietary or supplementation sources), can be subject to dietary iron inhibitors (e.g. calcium). Excess iron can cause cellular oxidative stress in the body. Curcumin is an active component found in turmeric, known for its anti-oxidant and anti-inflammatory properties. Co-administration of iron and curcumin may influence iron, inflammatory status and/or neurotrophic markers in the body.