Evidence supporting the use of: Liver
For the body system: Hair

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Liver is used to support the hair body system primarily based on its nutritional content, and there is scientific validation for this practice. Liver, especially from beef, is one of the richest sources of several nutrients that are important for hair health, including biotin, iron, vitamin A, and B vitamins (notably B12 and folate). Scientific studies have shown that deficiencies in these nutrients can lead to hair loss or poor hair quality. For example, iron deficiency is a well-established cause of telogen effluvium, a form of hair loss, and several studies have linked biotin deficiency to hair thinning and brittle hair. Liver provides these nutrients in highly bioavailable forms, which may make it particularly effective for correcting deficiencies. However, while supplementation with specific nutrients found in liver is supported by research for individuals with deficiencies, there are fewer direct studies examining liver consumption itself as a method to improve hair health. Thus, the evidence primarily supports the use of liver as a nutrient-dense food to address underlying nutritional causes of hair problems, rather than as a direct hair growth promoter. Overconsumption of liver, especially due to its high vitamin A content, should be avoided as this can have adverse effects, including hair loss. Overall, while not a magic solution, liver's nutritional profile provides a rational scientific basis for its use in supporting hair health.

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