Best vitamin d products

A higher dose of vitamin d reduces the risk of falls in nursing home residents: a randomized, multiple-dose study

Fall prevention with supplemental and active forms of vitamin D: a meta-analysis of randomised controlled trials

Fall prevention with supplemental and active forms of vitamin D: a meta-analysis of randomised controlled trials

Low-dose vitamin D prevents muscular atrophy and reduces falls and hip fractures in women after stroke: a randomized controlled trial

High-Dose Monthly Vitamin D for Prevention of Acute Respiratory Infection in Older Long-Term Care Residents: A Randomized Clinical Trial

Independent association of low serum 25-hydroxyvitamin d and 1,25-dihydroxyvitamin d levels with all-cause and cardiovascular mortality

Systematic review: Vitamin D and calcium supplementation in prevention of cardiovascular events

Levels of vitamin D and cardiometabolic disorders: systematic review and meta-analysis

Vitamin D 3 supplementation does not modify cardiovascular risk profile of adults with inadequate vitamin D status

Vitamin D supplementation enhances the beneficial effects of weight loss on cardiovascular disease risk markers

A 12-week double-blind randomized clinical trial of vitamin D₃ supplementation on body fat mass in healthy overweight and obese women

Supplementation with 1000 IU vitamin D/d leads to parathyroid hormone suppression, but not increased fractional calcium absorption, in 4-8-y-old children: a double-blind randomized controlled trial

Impact of vitamin D supplementation during a resistance training intervention on body composition, muscle function, and glucose tolerance in overweight and obese adults

Effect of vitamin D supplementation, directly or via breast milk for term infants, on serum 25 hydroxyvitamin D and related biochemistry, and propensity to infection: a randomised placebo-controlled trial

Optimal vitamin D status for colorectal cancer prevention: a quantitative meta analysis

Vitamin D supplementation to prevent acute respiratory infections: individual participant data meta-analysis

Double-blind randomised placebo-controlled trial of bolus-dose vitamin D3 supplementation in adults with asthma (ViDiAs)

Effect of vitamin D on blood pressure: a systematic review and meta-analysis

Serum 25-hydroxyvitamin D, ethnicity, and blood pressure in the Third National Health and Nutrition Examination Survey

Vitamin D₃ Supplementation Reduces the Symptoms of Upper Respiratory Tract Infection during Winter Training in Vitamin D-Insufficient Taekwondo Athletes: A Randomized Controlled Trial

Prevention of nonvertebral fractures with oral vitamin D and dose dependency: a meta-analysis of randomized controlled trials

Vitamin D3 supplementation and upper respiratory tract infections in a randomized, controlled trial

Randomized trial of vitamin D supplementation and risk of acute respiratory infection in Mongolia

Double-blind randomised controlled trial of vitamin D3 supplementation for the prevention of acute respiratory infection in older adults and their carers (ViDiFlu)

Vitamin D3 supplementation in patients with frequent respiratory tract infections: a randomised and double-blind intervention study

Vitamin D and Acute Respiratory Infections—The PODA Trial

Vitamin D supplementation to prevent infections: a sub-study of a randomised placebo-controlled trial in older people (RECORD trial, ISRCTN 51647438)

Effect of Monthly High-Dose Vitamin D Supplementation on Acute Respiratory Infections in Older Adults: A Randomized Controlled Trial

Effect of Vitamin D supplementation to reduce respiratory infections in children and adolescents in Vietnam: A randomized controlled trial

Winter cholecalciferol supplementation at 55°N has little effect on markers of innate immune defense in healthy children aged 4-8 years: a secondary analysis from a randomized controlled trial

Effects of vitamin D supplementation to children diagnosed with pneumonia in Kabul: a randomised controlled trial

Weekly cholecalciferol supplementation results in significant reductions in infection risk among the vitamin D deficient: results from the CIPRIS pilot RCT

Reduced primary care respiratory infection visits following pregnancy and infancy vitamin D supplementation: a randomised controlled trial

Effect of vitamin D3 supplementation on upper respiratory tract infections in healthy adults: the VIDARIS randomized controlled trial

A randomized controlled trial of vitamin D3 supplementation for the prevention of symptomatic upper respiratory tract infections

Vitamin D supplementation for the prevention of acute respiratory tract infection: a randomized, double-blinded trial among young Finnish men

Vitamin D3 and gargling for the prevention of upper respiratory tract infections: a randomized controlled trial

Vitamin D supplementation and upper respiratory tract infections in adolescent swimmers: a randomized controlled trial

Vitamin D Supplementation and the Risk of Colds in Patients with Asthma

Intake of 25-Hydroxyvitamin D3 Reduces Duration and Severity of Upper Respiratory Tract Infection: A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparison Study

Effect of High-Dose vs Standard-Dose Wintertime Vitamin D Supplementation on Viral Upper Respiratory Tract Infections in Young Healthy Children

Vitamin D supplementation reduces the risk of acute otitis media in otitis-prone children

Effect of calcifediol treatment and best available therapy versus best available therapy on intensive care unit admission and mortality among patients hospitalized for COVID-19: A pilot randomized clinical study

Effects of a 2-Week 5000 IU versus 1000 IU Vitamin D3 Supplementation on Recovery of Symptoms in Patients with Mild to Moderate Covid-19: A Randomized Clinical Trial

Impact of daily high dose oral vitamin D therapy on the inflammatory markers in patients with COVID 19 disease

Effect of a Single High Dose of Vitamin D3 on Hospital Length of Stay in Patients With Moderate to Severe COVID-19: A Randomized Clinical Trial

Vitamin D supplementation for prevention of mortality in adults

Vitamin D, tuberculin skin test conversion, and latent tuberculosis in Mongolian school-age children: a randomized, double-blind, placebo-controlled feasibility trial

Vitamin D supplementation did not prevent influenza-like illness as diagnosed retrospectively by questionnaires in subjects participating in randomized clinical trials

Randomized trial of vitamin D supplementation to prevent seasonal influenza A in schoolchildren

Effects of vitamin D supplements on influenza A illness during the 2009 H1N1 pandemic: a randomized controlled trial

Preventive Effects of Vitamin D on Seasonal Influenza A in Infants: A Multicenter, Randomized, Open, Controlled Clinical Trial

The effect of vitamin D3 on insulin secretion and peripheral insulin sensitivity in type 2 diabetic patients

Effects of vitamin D and calcium supplementation on pancreatic β cell function, insulin sensitivity, and glycemia in adults at high risk of diabetes: the Calcium and Vitamin D for Diabetes Mellitus (CaDDM) randomized controlled trial

A randomized, placebo-controlled trial of vitamin D supplementation to improve glycaemia in overweight and obese African Americans

Vitamin D3 supplementation improves insulin sensitivity in subjects with impaired fasting glucose

Different doses of supplemental vitamin D maintain interleukin-5 without altering skeletal muscle strength: a randomized, double-blind, placebo-controlled study in vitamin D sufficient adults

Vitamin D Supplementation for Premenstrual Syndrome-Related inflammation and antioxidant markers in students with vitamin D deficient: a randomized clinical trial

The Effect of Vitamin D Supplement Consumption on Premenstrual Syndrome in Vitamin D-Deficient Young Girls: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial

High dose vitamin D supplementation can improve menstrual problems, dysmenorrhea, and premenstrual syndrome in adolescents

Evaluating the effects of vitamin D and vitamin E supplement on premenstrual syndrome: A randomized, double-blind, controlled trial

Vitamin D Supplementation for Premenstrual Syndrome-Related Mood Disorders in Adolescents with Severe Hypovitaminosis D

Relationship between 25-OH-D serum level and relapse rate in multiple sclerosis patients before and after vitamin D supplementation

Cholecalciferol in relapsing-remitting MS: A randomized clinical trial (CHOLINE)

Randomized trial of daily high-dose vitamin D 3 in patients with RRMS receiving subcutaneous interferon β-1a

Effect of vitamin D3 supplementation on relapses, disease progression, and measures of function in persons with multiple sclerosis: exploratory outcomes from a double-blind randomised controlled trial

Effects of adjunct low-dose vitamin d on relapsing-remitting multiple sclerosis progression: preliminary findings of a randomized placebo-controlled trial

Therapeutic effect of vitamin D3 in multiple sclerosis patients

The effect of cannabis on tremor in patients with multiple sclerosis

Safety, tolerability, and efficacy of orally administered cannabinoids in MS

Smoked cannabis for spasticity in multiple sclerosis: a randomized, placebo-controlled trial

Effect of vitamin D supplementation on testosterone levels in men

Risedronate and ergocalciferol prevent hip fracture in elderly men with Parkinson disease

Effect of vitamin D supplementation on progression of knee pain and cartilage volume loss in patients with symptomatic osteoarthritis: a randomized controlled trial

A prospective randomized controlled trial of the effects of vitamin D supplementation on cardiovascular disease risk

Association of A1C levels with vitamin D status in U.S. adults: data from the National Health and Nutrition Examination Survey

Vitamin D Supplementation Affects the Beck Depression Inventory, Insulin Resistance, and Biomarkers of Oxidative Stress in Patients with Major Depressive Disorder: A Randomized, Controlled Clinical Trial

Therapeutic effect of vitamin D in acute lower respiratory infection: A randomized controlled trial

A systems-based investigation into vitamin D and skeletal muscle repair, regeneration, and hypertrophy

Effect of vitamin D supplementation on serum 25-hydroxy vitamin D levels, joint pain, and fatigue in women starting adjuvant letrozole treatment for breast cancer

Vitamin D threshold to prevent aromatase inhibitor-induced arthralgia: a prospective cohort study

Vitamin D and prevention of breast cancer: pooled analysis

Association between plasma 25-hydroxyvitamin D and breast cancer risk

The association between ultraviolet B irradiance, vitamin D status and incidence rates of type 1 diabetes in 51 regions worldwide

Vitamin D intake and the risk for pancreatic cancer in two cohort studies

Effects of Vitamin D on Endometriosis-Related Pain: A Double-Blind Clinical Trial

The effect of vitamin D supplement on the score and quality of sleep in 20-50 year-old people with sleep disorders compared with control group

Vitamin D supplementation for severe pneumonia--a randomized controlled trial

Evidence that Vitamin D Supplementation Could Reduce Risk of Influenza and COVID-19 Infections and Deaths

Vitamin D: The “sunshine” vitamin

Limitations of vitamin D supplementation trials: Why observational studies will continue to help determine the role of vitamin D in health

Vitamin D and breast cancer: A systematic review and meta-analysis of observational studies

Vitamin D and depression: a systematic review and meta-analysis comparing studies with and without biological flaws

Vitamin D assessment in population-based studies: a review of the issues

Vitamin D-related changes in physical performance: A systematic review

Vitamin D and osteosarcopenia: an update from epidemiological studies