June 2023 in “Research Square (Research Square)” This study demonstrated that dietary cupric citrate improved growth performance and nutrient utilization in broilers, while also altering their intestinal microbiota and increasing the pH in the duodenum and jejunum.
January 2025 in “Open Veterinary Journal” This case report described an 8-year-old Chihuahua with significant hair loss, where supplementation with horse placenta extract, taurine, and vitamin B complex led to marked hair regrowth and maintained coverage during a 76-week follow-up period, suggesting a potential non-invasive treatment option for alopecia in dogs.
October 2021 in “Journal of Investigative Dermatology” In this study, the researchers found that scalp hair follicles affected by female pattern hair loss are poorly vascularized, likely affecting nutrient delivery, but capable of nutrient uptake when supplemented.
August 2022 in “Nutrients” This ex vivo study found that hair follicles in female pattern hair loss exhibited nutrient insufficiency and dormant metabolism, but maintained nutrient uptake capability, suggesting potential benefits of nutritional supplementation as an adjunct therapy.
3 citations
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November 2020 in “Curēus” This case report describes an eight-year-old male with alopecia areata who achieved complete remission within five months following a diet and supplementation regimen rich in vitamins and zinc.
February 2024 in “Cosmoderma” This perspective highlights the ongoing debate on the efficacy and safety of micronutrient supplementation for hair loss, emphasizing that, without documented deficiency, such practices may lead to toxicities and unintended medical consequences, warranting further research to clarify their role.
17 citations
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January 2018 in “International Journal of Trichology” This study found that patients with premature hair graying had lower serum levels of iron, copper, and calcium, which correlated with the severity of graying.
This review explores the connection between COVID-19 infection and telogen effluvium, highlighting the potential contribution of inflammatory and emotional factors to hair loss; it reports no clinical results.
19 citations
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January 2015 in “Current problems in dermatology” This review discusses environmental factors like UV radiation and smoking that affect hair health and highlights the potential role of nutrition, but it reports no new results.
April 2026 in “Journal of Pharmacy Practice” In this case study, the authors reported a post-bariatric surgery patient who developed acne due to inappropriate vitamin supplementation, emphasizing the need for careful monitoring and education on vitamin use to prevent complications in such patients.
January 2026 in “Updates in clinical dermatology” Proper nutrition and alternative therapies can help manage hair loss.
December 2025 in “International Journal for Fundamental and Interdisciplinary Research in Homoeopathy.” In this retrospective case series, researchers observed that a combined treatment protocol of homoeopathy, Xogen therapy, diet, and vitamin supplementation progressively reduced hair fall and improved hair density in five male patients with androgenic alopecia.
January 2014 in “Surgical and Cosmetic Dermatology” This study found that nutritional supplementation improved hair loss in women with telogen effluvium, showing a significant increase in anagen hairs and reduction in telogen hairs after three months.
July 2024 in “Brazilian Journal of Clinical Medicine and Review” This review found that hair loss is common in women after bariatric surgery, linked to nutritional deficiencies and rapid weight loss, highlighting the need for further research and nutrient monitoring.
11 citations
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September 1999 in “Biological Trace Element Research” This study concluded that mineral element deficiencies in pregnant women may be alleviated with targeted nutrient supplementation, although mutual resistance and promotional effects among the supplements were observed.
79 citations
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January 2017 in “Dermatology practical & conceptual” This article addresses the need to screen for nutrient deficiencies in patients with hair loss but reports no new findings, noting that supplementation without deficiency may not be beneficial and could pose risks.
August 2022 in “Italian Journal of Animal Science/Italian journal of animal science” This study found that supplementing Angora goats with whole field bean seeds postpartum did not prevent weight and body condition losses but was associated with improved mohair growth and kid weight gain, likely due to better nutrient partitioning towards lactation and hair growth.
1 citations
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July 2022 in “Clinical and Experimental Dermatology” This study suggests that arginine and cysteine deficiency is not present in women with chronic telogen effluvium, indicating that amino acid supplementation may be unnecessary in nutrient-replete populations.
February 2026 in “Animals” In this study, supplementing low-protein diets with 0.75% methionine maintained growth performance, improved fur quality, enhanced nutrient utilization, and supported intestinal microbiota balance in blue foxes, with significant results on several biochemical parameters and nutrient digestibility observed.
October 2025 in “Jurnal Ilmiah Kedokteran dan Kesehatan” This literature review reports that multivitamin supplementation can enhance hair density and quality in people with suboptimal nutritional status but warns that excessive intake of certain vitamins and minerals may cause hair loss.
September 2023 in “F&S reports” This review examines theories linking PCOS with psychiatric disorders, highlighting dietary interventions like probiotics and nutrients as possible improvements, but reports no new clinical findings and calls for more research.
This article discusses the lack of effective drugs for treating graying hair and explores current therapies for age-related hair changes, emphasizing the importance of addressing general health issues and nutrient supplementation for hair health.
7 citations
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January 2018 in “PubMed” In this study, reduced serum levels of iron, copper, and calcium were associated with premature graying of hair, suggesting that supplementation might help, but more research is needed to fully understand the relationship.
August 2023 in “Tzu Chi Medical Journal” This study at a medical center in Eastern Taiwan found that female alopecia has diverse causes, including nutrient deficiencies, autoimmune diseases, psychological stress, thyroid conditions, and COVID-19 vaccination, with iron deficiency affecting 70.3% of cases.
1 citations
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June 2009 in “Integrated Environmental Assessment and Management” This article discusses the dual nature of selenium, highlighting its essential metabolic roles and potential toxicity at high doses, and reports no new experimental findings.
1 citations
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February 2021 in “Animal feed science and technology” This study found that puppies fed organic selenium had better retention of selenium compared to those fed inorganic selenium, with no significant difference in coat quality or hair growth.
7 citations
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January 2023 in “Animals” This study found that supplementing pregnant cashmere goats' diets according to nutritional standards improved their fiber production, growth, fertility, and the development of kids' secondary hair follicles.
70 citations
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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.
146 citations
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September 2013 in “Advances in nutrition” This review examines nutritional deficiencies after bariatric surgery, particularly in essential minerals like zinc and copper, and highlights the need for more research to improve post-surgery nutritional outcomes.
34 citations
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March 2001 in “Cleveland Clinic Journal of Medicine” This article reviews the triggers, diagnosis, and management of telogen effluvium in men and women, emphasizing the role of patient education and reassurance, but presents no new clinical findings.