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    Glossary Vitamin D Supplementation

    intake of vitamin D through supplements to maintain health

    Vitamin D Supplementation refers to the intake of vitamin D through dietary supplements to ensure adequate levels in the body, especially when natural sunlight exposure or dietary intake is insufficient. This practice is crucial for maintaining bone health, supporting immune function, and potentially preventing conditions like osteoporosis and certain autoimmune diseases.

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      research Persistent scurvy after vitamin C supplementation in a high-risk patient: a case report

      1 citations , November 2024 in “AME Medical Journal”
      In this case study, scurvy was diagnosed in a middle-aged man on hemodialysis with food insecurity and undetectable vitamin C levels, highlighting the diverse risk factors and persistent challenges in managing vitamin C deficiency among patients with complex medical and social issues.
      Serum Vitamin C Response to Daily Supplementation in a Zero-Carb Adult: An N=1 Case Study

      research Serum Vitamin C Response to Daily Supplementation in a Zero-Carb Adult: An N=1 Case Study

      August 2026 in “Zenodo (CERN European Organization for Nuclear Research)”
      In this N=1 case study, researchers observed that a 1 g daily dose of vitamin C successfully elevated plasma vitamin C levels in an adult male following a zero-carbohydrate diet, with reported improvements in some health parameters but no gastrointestinal side effects.
      An Investigation of Vitamin D Status in Alopecia Areata

      research An investigation of vitamin D status in alopecia areata

      37 citations , June 2018 in “Clinical and Experimental Medicine”
      This study found that patients with alopecia areata had significant systemic inflammation and vitamin D deficiency, with both conditions more pronounced as disease severity increased.

      research Vitamin C Deficiency-Induced Pulmonary Arterial Hypertension

      13 citations , February 2020 in “CHEST Journal”
      This case report observed that pulmonary arterial hypertension in a man with severe vitamin C deficiency resolved after vitamin C supplementation, suggesting a potential role of vitamin C in managing this condition.

      research Werner′s syndrome

      5 citations , January 2012 in “Indian Journal of Dermatology Venereology and Leprology”
      Werner's syndrome causes early aging and increases cancer risk, requiring early diagnosis and symptom management.
      Nutrition and Hair Health: The Impact of Nutritional Deficiencies

      research Nutrition and hair

      70 citations , June 2010 in “Clinics in Dermatology”
      This review discusses how changes in hair and skin may indicate underlying vitamin deficiencies and emphasizes the need to identify populations at risk for these deficiencies; it reports no new results.
      Iron

      research Iron

      January 2014 in “Reactions Weekly”
      A woman had nausea and constipation from iron pills taken for hair loss due to low iron.
      Renal Vitamins

      research Renal Vitamins

      4 citations , March 2006 in “Journal of renal nutrition”
      This study found that hemodialysis patients taking water-soluble vitamins had a 16% lower mortality risk compared to those not taking any, but the specific supplementation needed remains unclear.

      research Vitamins A, B, C, and D: A Short Review for the Dermatologist.

      7 citations , July 2021 in “PubMed”
      This review assesses the role of vitamins A, B, C, and D in treating dermatologic conditions and highlights promising applications, although further research is required to confirm their efficacy.
      Collagen as a Bioactive Ingredient in Nutricosmetology: A Review

      research Collagen as a Bioactive Ingredient in Nutricosmetology - A Review

      November 2025 in “Quality in Sport”
      This review found that hydrolyzed collagen supplementation, particularly marine collagen, improves skin hydration, elasticity, and density while strengthening hair and nails, especially when paired with vitamin C and trace elements; however, more studies are necessary to evaluate long-term efficacy across different sources and demographics.
      Effect of a Nutritional Supplement on Hair Loss in Women

      research Effect of a nutritional supplement on hair loss in women

      38 citations , January 2015 in “Journal of Cosmetic Dermatology”
      This study found that a 6-month supplementation with omega 3, omega 6, and antioxidants significantly improved hair density and reduced hair loss in women with female pattern hair loss.
      Role of Non-Androgenic Factors in Hair Loss and Hair Regrowth

      research Role of Non Androgenic Factors in Hair loss and Hair Regrowth

      7 citations , January 2017 in “Journal of cosmetology & trichology”
      This article discusses how nutritional and environmental factors, along with antioxidant supplementation, may improve hair growth by mitigating the effects of androgens and reports no new clinical results.
      Micronutrients for Hair and Nails: A Review of Their Impact on Health

      research Micronutrients for Hair and Nails

      1 citations , January 2010 in “Springer eBooks”
      Certain micronutrients may improve hair and nail health, but more research is needed to confirm their benefits.
      Nutraceuticals: A Review

      research Nutraceuticals: A Review

      95 citations , February 2018 in “Dermatology and Therapy”
      This review discusses the role of nutraceuticals in combating skin aging but reports no new clinical results, focusing on their mechanisms of action and potential effectiveness for dermatologists.

      research The Malnourished Heart: An Unusual Case of Heart Failure

      3 citations , February 2017 in “˜The œAmerican journal of medicine”
      This case report highlights that repletion of various micronutrients, including thiamine, significantly improved heart failure symptoms and cardiac function in a malnourished patient with vitamin deficiencies.
      Corkscrew Hairs in a 22-Year-Old Woman with Mild Systemic Lupus Erythematosus

      research Corkscrew hairs

      3 citations , April 2015 in “Cleveland Clinic Journal of Medicine”
      This case report describes a 22-year-old woman with systemic lupus erythematosus who developed scurvy due to low serum ascorbic acid, despite a diet of white meat and processed foods.
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