Evidence supporting the use of: Vegetable Protein
For the body system: Hair

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Vegetable protein is increasingly recognized for its potential benefits in supporting hair health, primarily due to its amino acid content. Hair is made predominantly of keratin, a protein that requires a variety of amino acids for its synthesis. Vegetable protein sources such as soy, pea, or rice protein provide essential and non-essential amino acids necessary for hair structure and strength. Some scientific studies have shown that adequate protein intake, including plant-based proteins, is associated with reduced hair shedding and improved hair quality, especially in individuals with previously low protein diets. However, there is limited direct clinical research specifically linking vegetable protein supplementation to enhanced hair growth or prevention of hair loss in healthy individuals. Most available evidence is extrapolated from broader studies on protein deficiency and hair health, as well as laboratory research on the effects of amino acids on hair follicle cells. While the biological plausibility exists, the current level of direct scientific validation is moderate. Therefore, vegetable protein is justified for supporting the hair body system based on general protein requirements for hair health, but strong clinical evidence specific to vegetable protein is lacking.

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