Active clinical trials for "Avitaminosis"

The study consists of two arms: 1) intervention group using eggs as supplementary food given from 2nd trimester of pregnancy to birth, and 2) observational group of pregnant mothers. it aims to assess the effectiveness of improving dietary quality during pregnancy on the epigenetic and stunting related outcomes (growth and development) in infants, who will be followed up until 24 months old

Vitamin C is essential for numerous biological processes as it acts as a cofactor in various hydroxylation reactions, but also as a powerful antioxidant. As humans have lost the ability to synthetize Vitamin C, this micronutrient is found exclusively in the food, and more particularly in fresh fruits and vegetables. The term 'hypovitaminosis C' refers to a plasmatic Vitamin C concentration < 28 µmol/L. It encompasses two distinct situations, according to the severity of the deprivation: A deeply lowered plasmatic concentration (< 11 µmol/L) is defined as 'Vitamin C deficiency'. The resulting condition is scurvy and its well-known haemorrhagic complications, very likely to be fatal. A less low plasmatic concentration (11-27 µmol/L) is defined as 'Vitamin C depletion'. Symptoms are polymorphic and less suggestive, especially for elderly patients. Many studies suggest a chronic Vitamin C depletion may favour the occurrence of various conditions such as cognitive impairment, psychiatric disorders, cardio-vascular diseases, or certain cancers, thereby highlighting the involvement of Vitamin C in many biological processes. The epidemiology and risk factors of hypovitaminosis C in ageing populations are poorly documented. The few studies dealing with this question are mostly retrospective, including a low number of patients, and relying on an imperfect methodology. Despite these limitations, data suggest hypovitaminosis C could concern up to 50% of the hospitalized geriatric population. Despite this probably high prevalence, hypovitaminosis C is barely diagnosed and thus rarely supplemented. This is particularly true for the elderlies who are at risk high of being Vitamin C depleted. Moreover, several risk factors have been described to be associated with Vitamin C depletion or deficiency, sometimes both. But only a few of them have been validated for the geriatric population. Thus, there is a real need for a better understanding of hypovitaminosis C epidemiology and risk factors in the geriatric population, in order to diagnose earlier, more frequently, and more precisely these cases. It is important to note that an easy and safe supplementation exists (1 g of Vitamin C for 2 weeks). A better understanding of risk factors is also a key element to apply corrective measures on modifiable risk factors in order to prevent the recurrence of hypovitaminosis C. In the present research protocol, the investigators hypothesized hypovitaminosis C could concern half of the hospitalized geriatric patients in acute care units. The primary objective of this study is to evaluate the prevalence of hypovitaminosis C in a geriatric acute care unit, by using a prospective design and including a statistically sufficient number of patients. The secondary objectives are : To determine in this population the prevalence of Vitamin C deficiency, To determine in this population the prevalence of Vitamin C depletion, To assess the statistical associations between hypovitaminosis C, deficiency, and depletion with already known or pertinent risk factors. To follow adverse events with vitamin C supplementation in deficient patients.

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.

To determine the prevalence of hypovitaminosis D in HIV infected patients, and the consequences on secondary hyperparathyroidism, and bone mineral density (BMD). Also, to establish the improvement in vitamin D status, parathyroid hormone (PTH) and BMD, in case of receiving vitamin D supplementation, during a follow up period of at least 1 year.

This is an observational study in which data from the participants who will be taking different vitamin supplementation regimes before and during pregnancy. Vitamin deficiency is a condition where there is not enough vitamins in the body. During pregnancy, a woman's body may require more vitamins than usual. When the body does not get enough vitamins, people can take vitamin supplements to help increase the amount of vitamins in the body. It is already known, that polyvitamins can decrease risks of anemia (low level of red cells in the blood), neural tube defects (severe congenital anomaly of neural system) or other malformations, but also on several pregnancy complications. Nevertheless, a significant amount of evidence on the use of vitamins during pregnancy has been obtained in countries with low and middle level of living standards. Countries with higher living standards may have different prevalence of vitamin insufficiency, thereby it is not clearly known how vitamin supplementation may help to reduce pregnancy complications in these population. So, researchers think it is important to do more studies. Elevit contains many different vitamins and minerals. These vitamins and minerals are important to help women before and during pregnancy. In this study, the researchers want to collect more data about how well pregnancies progress and the outcomes of the pregnancies in women who are taking different vitamin treatment or supplements, including elevit. To do this, the researchers will review information collected from the participants to: calculate how many women give birth without any complications between weeks 37 and 42 of their pregnancies calculate how many women have low levels of red blood cells in the blood during the third trimester of their pregnancies calculate how many women have a serious condition called preeclampsia during their pregnancy, a condition in which pregnant women have a sudden rise in blood pressure and swelling in the hands, feet and face calculate how many women give birth to babies who weigh less than expected at the time of their birth give the women a questionnaire to complete during each trimester to see how they are feeling The participants will have decided with their doctor to start their vitamin treatment or supplements before getting pregnant or during their pregnancy. During the study, the researchers will collect the women's information from their medical records taken during their regular medical appointments. The study will include women who are pregnant and who are planning to get pregnant. The study will include both women who have vitamin deficiency and women who do not have vitamin deficiency. Each participant will be in this study for up to 18 months., The whole study will last about 2 years and 10 months. During this time, the participants will visit their doctor 5 times as part of their usual care. The study is planned to collect data from October 2021 until June 2024.

Rationale: Globally, vitamin B12 deficiency is one of the most common micronutrient deficiencies. The only relevant source of Vitamin B12 is animal-source foods. Vitamin B12 is crucial for normal cell division and is necessary for brain growth as well as for the maintenance of its normal function. Deficiency is also associated with impaired growth. In a previous study, we demonstrated that vitamin B12 administration over a period of six months enhanced growth, and scores on a neuro-developmental test in young Indian children. However, the overall effect was small and, for the developmental scores significant only in those that were malnourished at the start of the study. Our findings need to be verified in trials targeting younger, malnourished children and with longer supplementation time. Hypothesis: This proposed study will test three hypotheses; to measure to what extent 2 recommended daily allowances (RDA) of vitamin B12 administration for one year to stunted children improves; 1) growth, 2) neurodevelopment, and 3) hemoglobin concentration. Study design: Randomized placebo-controlled trial. Half of the children will receive a paste containing vitamin B12, the other half the same paste but without vitamin B12. Study participants and site: 600 malnourished infants in Bhaktapur municipality in Nepal. In this population we have demonstrated that vitamin B12 deficiency and poor growth is common in early childhood. Intervention: Daily administration of a paste containing vitamin B12 or placebo for 12 months Data: The main outcomes of this study are scores on developmental assessments tools and growth measured every month for 12 months.

This study aims to examine the effects of Sourse's Hype Bites at being able to increase vitamin B12 levels to promote positive health outcomes. Participants will consume Hype Bites daily. Participants will also take surveys and blood samples to examine both the subjective experience of taking Hype Bites as well as changes in biomarkers across the trial.

Older people in care homes are one of the most vulnerable groups with respect to risk, morbidity and mortality of severe coronavirus disease-2019 (COVID-19). In the UK, almost half (47%) of all COVID-19 deaths occurred in care homes. The World Health Organization (WHO) has highlighted vitamin C as an adjunctive therapy with biological plausibility for people with severe COVID-19. Previous research has indicated that up to 40% of care home residents in the UK are deficient in vitamin C, an essential immune supportive nutrient. This is a 10-fold higher deficiency level than that reported in community dwelling older people in the UK government's National Diet and Nutrition Survey. Due to lack of robust pharmacokinetic data in older people, the intake required to optimise the vitamin C status of this cohort is not yet known and may be higher than that for healthy adults; some have estimated as high as 400 mg/d (the current UK recommended nutrient intake (RNI) or vitamin C is 40 mg/d, which is sufficient to prevent deficiency, but not enough for optimal/saturating vitamin C status). Thus, this pilot and feasibility study will assess the intake requirements of care home residents for optimal vitamin C status. The purpose is to provide essential data for a future clinical trial assessing the efficacy of optimal vitamin C supplementation for risk, severity, and duration of respiratory infections in this population who are at risk of such infections.

The purpose of this study is to determine if vitamin D supplementation changes the results of certain tests associated with inflammation in the body using an oral, synthetic form of vitamin D called paricalcitol.

Hypovitaminosis D is common in the adult population, it affects at least 1 billion people worldwide, and in particular 80% of the French population according to the National Institute for Public Health Surveillance. Hypovitaminosis D is accompanied or complicated by deleterious health manifestations such as bone, immune and cancer diseases, neuromuscular disorders and a propensity to fall, for example. Hypovitaminosis D has also been associated with more complicated care pathways (increase in the severity of the reason for hospitalization, length of hospitalization, risk of in-hospital death). Prevention of these clinical events depends on correcting vitamin D status. In sick, dependent or fragile adults, natural intakes are generally insufficient. It is indeed accepted that hypovitaminosis D may not be treated effectively by dietary measures or by simple exposure to the sun in French latitudes. Drug supplementation is therefore necessary, with the objective of achieving a target concentration of circulating 25-hydroxyvitamin D (25 (OH) D) of 75 nmol / L (30 ng / mL) in this population. Vitamin D supplementation, when properly conducted, corrects hypovitaminosis D, and has been associated with improved prognosis, especially life-saving, in therapeutic trials versus placebo. Such results lead the investigators to suggest that the identification and correction of hypovitaminosis D in hospitalized patients could represent a simple, effective and inexpensive strategy for improving hospital care pathways. In this perspective, the first step is to determine the prevalence, severity and clinical profile of hospitalized patients with hypovitaminosis D, as well as their course of care. To the investigators knowledge, there are no large-scale studies based on real-life data on this subject.