VITAMIN D DEFICIENCY

This study tested whether adding photodynamic therapy (a light-based treatment) and vitamin D to standard deep cleaning helps people with moderate gum disease. Twenty-four adults with stage II grade B periodontitis took part. The goal was to see if the combination improves gum at…

This study tested whether taking omega-3 or vitamin D supplements daily helps treat gum disease (periodontitis) better than standard deep cleaning alone. 72 adults with moderate gum disease received either omega-3, vitamin D, or no supplement alongside their dental treatment. Res…

This study looked at whether giving vitamin D supplements to people with low vitamin D levels and newly diagnosed non-Hodgkin lymphoma or chronic lymphocytic leukemia could improve their outcomes. About 197 participants received either a low or high dose of vitamin D while underg…

This study looked at 90 children aged 6 to 12 with night-time bedwetting and low vitamin D levels. It compared three treatments: vitamin D alone, desmopressin alone, or both together. The goal was to see which approach reduced wet nights the most over 3 to 6 months.

This study looked at whether giving vitamin D supplements to adults with type 2 diabetes who also have low vitamin D levels can improve their blood sugar control. 119 participants took a high dose of vitamin D once a month for three months. Researchers measured blood sugar and ot…

This study tested whether taking vitamin D every day could reduce lung complications in children and teens with sickle cell disease. Lung problems like infections, asthma attacks, and acute chest syndrome are major causes of illness and death in this condition. Researchers gave d…

This study tested whether eating vitamin D fortified bread can prevent low vitamin D levels in Irish families during winter. 128 people from different households took part. Researchers compared vitamin D levels between those who ate the fortified bread and those who ate regular b…

This study looked at whether a higher daily dose of vitamin D (4000 IU) is better than the standard dose (400 IU) for adults who had a major burn injury and are vitamin D deficient. 48 people took part, and researchers measured changes in their physical and mental health, as well…

This study tested whether taking a high dose of vitamin D3 daily for 12 weeks could improve muscle strength and mass in older adults with obesity. Researchers enrolled 29 participants aged 60 and older in southern Mexico. They measured handgrip strength, muscle mass, and physical…

This pilot study investigates how common low energy availability, iron deficiency, and low vitamin D levels are among Black collegiate athletes. Participants who are found to have low iron or vitamin D will receive daily supplements for 12 weeks. The goal is to better understand …

This study looked at how much vitamin D sulfate is in breastmilk and whether it reaches infants. Researchers collected breastmilk samples from 101 lactating mothers before and after 28 days of vitamin D supplements, and also tested infant saliva and gut contents. The goal was to …

This study looked at how common vitamin D deficiency is in people with chronic heart failure and whether giving vitamin D supplements improves their health. 91 adults with heart failure were divided into groups based on their vitamin D levels. Those with severe deficiency were ra…

This study looked at how common Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) is among 459 adults in Turkey who are at risk due to being overweight, having diabetes, or other metabolic issues. Researchers used a special ultrasound to measure liver fat and stiff…

This study reviewed medical records of 200 adults from an endocrinology clinic to see if taking vitamin D3 supplements lowered their chances of developing Long COVID after a COVID-19 infection or getting COVID-19 after vaccination. Researchers compared patients who took vitamin D…

This completed study looked at vitamin D levels in 30 young medical residents at a hospital in Spain. Those found to have low vitamin D were given a supplement and rechecked. The goal was simply to understand how common vitamin D deficiency is in this group.

This study looked at how much vitamin D pregnant women need to reach healthy levels. 105 women at risk of deficiency took either 20 or 40 micrograms of vitamin D daily throughout pregnancy. Researchers measured their vitamin D levels and other health markers to see which dose wor…

This study measured vitamin D levels in 552 people: those on dialysis waiting for a kidney transplant and healthy kidney donors. Researchers wanted to see how common vitamin D deficiency is and whether it relates to immune function or health outcomes. The goal is to improve scree…

This completed study looked at whether vitamin D levels in the blood are linked to how severe COVID-19 gets. Researchers measured vitamin D in 1,100 COVID-19 patients in Turkey. The goal was to see if current vitamin D thresholds reflect real clinical risk. This is an observation…

This study examined the relationship between metabolic syndrome and vitamin D levels in 549 older adults (65+). Researchers collected health questionnaires and blood samples to understand how these factors are connected. The goal was to gather knowledge, not to test a treatment.

This study looked at how high doses of vitamin D change immune cells in 56 healthy adults over 3 months. Researchers used advanced lab tests to measure different types of immune cells before and after treatment. The goal was to better understand vitamin D's effects on the immune …

This study followed 215 people newly diagnosed with HIV in Hong Kong to see how often they developed non-AIDS conditions like high blood pressure, diabetes, bone thinning, and kidney problems. Participants were on different anti-retroviral regimens, and researchers compared the r…

This completed study looked at 70 adolescent girls with PCOS and 40 healthy teens to see if vitamin D levels are linked to metabolic problems like insulin resistance. Researchers measured vitamin D, blood sugar, cholesterol, and belly fat thickness using ultrasound. The goal was …