The everyday foundations of hair health
Explore nutrition and lifestyle evidence without restrictive diets or unnecessary supplements.
10 original guides · General educationExplore nutrition & lifestyle
Search the libraryFoods That Support Hair Health
A varied diet with enough energy, protein, and essential nutrients supports normal hair function.
Read articleNutrient Deficiencies Linked to Hair Loss
Nutritional deficiencies can contribute to hair changes, but shedding is not specific enough to identify one.
Read articleProtein Intake and Hair Health
Hair fibres contain protein, and adequate dietary protein supports normal growth.
Read articleIron, Zinc, and Biotin Explained
Iron, zinc, and biotin have normal biological roles, but taking extra amounts does not automatically improve hair.
Read articleCrash Dieting and Hair Loss
Rapid weight loss or severe dietary restriction can contribute to delayed hair shedding.
Read articleSleep and Hair Growth
Sleep supports general health, but there is no established sleep schedule that guarantees hair regrowth.
Read articleExercise and Scalp Circulation
Exercise supports health, but improved circulation during activity does not prove that a routine regrows scalp hair.
Read articleSmoking and Hair Health
Smoking has substantial health risks, and observational research has reported an association with pattern hair loss.
Read articleAlcohol and Hair Thinning
Alcohol use can affect health and nutrition, but hair thinning cannot be attributed to alcohol from appearance alone.
Read articleGut Health and Hair Connection
Gastrointestinal disease can affect nutrient absorption and may be relevant to hair changes.
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