Protein deprivation: comparative response of hair roots, serum protein, and urinary nitrogen April 1971 in “ American Journal of Clinical Nutrition ” Robert B. Bradfield We don't know much about this study yet. We're maintaining the world's largest resposity of hair loss research. You can help out the community by sending a PDF of this study here . Not sure how to get a study's PDF? You can email the authors of the study. View this study on sciencedirect.com →
research Hair-Root Adaptation to Marasmus in Andean Indian Children 32 citations , December 1969 in “The Lancet” Children with marasmus have more resting hair follicles and thinner, less pigmented hair, showing long-term malnutrition.
research Morphological Changes in Human Scalp Hair Roots During Protein Deprivation 47 citations , July 1967 in “Science” Not eating enough protein can cause hair roots to shrink and lose color, and hair to become thinner.