What deficiencies cause hairloss
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Nutritional Deficiencies and Hair Loss: Key Insights
Hair loss is a multifaceted condition influenced by various factors, including nutritional deficiencies. This article synthesizes research findings on the role of different nutrient deficiencies in causing hair loss.
Protein and Amino Acid Deficiencies
Hair follicle cells have a high turnover rate, necessitating a constant supply of proteins and amino acids. Deficiencies in essential amino acids such as histidine, leucine, and valine have been linked to various types of hair loss, including androgenic alopecia and telogen effluvium 13. Nonessential amino acids like alanine and cysteine are also crucial, with deficiencies observed in a significant proportion of individuals suffering from hair loss 3.
Iron Deficiency
Iron deficiency is one of the most common nutritional deficiencies globally and has been extensively studied in relation to hair loss. Iron is essential for hemoglobin production, which in turn is crucial for oxygen transport to hair follicles. Studies have shown that iron deficiency, with or without anemia, can contribute to various forms of hair loss, including alopecia areata, androgenetic alopecia, and telogen effluvium 26. However, the evidence is not conclusive enough to recommend universal screening or supplementation solely for hair loss without anemia 2.
Zinc and Copper Deficiencies
Zinc and copper are vital minerals for hair health. Zinc deficiency is associated with conditions like acrodermatitis enteropathica, which leads to hair loss 1. Copper deficiency, seen in conditions like Menkes kinky hair syndrome, also results in hair abnormalities 1. Studies have found that a significant percentage of individuals with hair loss have low levels of these minerals 37.
Vitamin Deficiencies
Vitamins play a crucial role in maintaining healthy hair. Vitamin D deficiency is prevalent among individuals with hair loss, particularly in young women 7. Other vitamins, including A, B, C, and E, are also important for hair follicle development and immune function. Deficiencies in these vitamins can disrupt the hair growth cycle and lead to hair loss 9.
Other Micronutrients
Other micronutrients such as selenium and ferritin are also implicated in hair health. Selenium is essential for the antioxidant defense system, and its deficiency can lead to hair loss 9. Ferritin, a protein that stores iron, is another critical factor. Low ferritin levels have been observed in individuals with hair loss, indicating the importance of iron storage in maintaining hair health 7.
Conclusion
Nutritional deficiencies are a significant and modifiable risk factor for hair loss. Proteins, amino acids, iron, zinc, copper, and various vitamins are essential for healthy hair growth. Identifying and correcting these deficiencies can potentially mitigate hair loss. However, further research is needed to establish definitive guidelines for supplementation and treatment.
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Most relevant research papers on this topic
Nutrition and hair: deficiencies and supplements.
Nutritional deficiencies can cause structural abnormalities, pigmentation changes, or hair loss, and can be managed through dietary changes and supplements.
Highly CitedThe diagnosis and treatment of iron deficiency and its potential relationship to hair loss.
Iron deficiency may be related to hair loss, but its diagnosis and treatment should be based on clinical judgment.
Highly CitedPrevalence of Nutritional Deficiencies in Hair Loss among Indian Participants: Results of a Cross-sectional Study
Nutritional deficiency is common in participants with hair loss, regardless of the type of alopecia, highlighting the need for identification and correction of these deficiencies.
Observational StudyNutrition and hair.
Nutritional deficiency can cause hair changes, such as color, weakened, or lost, and can be detected through a thorough physical exam and a thorough history.
Highly CitedDiet and hair loss: effects of nutrient deficiency and supplement use
Patients with hair loss should be screened for nutrient deficiencies and corrected, but further research is needed on the benefits of nutrient supplementation in the absence of documented deficiency.
Highly CitedRole of Iron Deficiency in Chronic Hair Loss
Iron deficiency may play a role in chronic hair loss, causing hair to fall out in a manner similar to genetic baldness in both male and female patterns.
Knowledge, Attitude, and Practices Related to Vitamin D, Zinc, and Ferritin Deficiencies and the Associated Risk of Hair Loss in Jazan, Saudi Arabia
Health education on vitamin D, zinc, and ferritin deficiencies is needed to improve sun exposure and supplement use practices, potentially reducing hair loss associated with these deficiencies.
Observational StudyThe Causes of Hair Loss in Women 20-30 Years Old
Early investigation of vitamins, minerals, and hormones levels is crucial in young women with alopecia, as deficiency of vitamin D, low zinc levels, and irregular periods are common.
The Role of Vitamins and Minerals in Hair Loss: A Review
Micronutrients play a crucial role in normal hair follicle development and immune cell function, and deficiency may be a modifiable risk factor for alopecia.
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