Links to articles and research regarding nutrition

Protein:

• "The Role of Nutrition in Hair Health" by the American Academy of Dermatology (AAD): https://www.aad.org/public/diseases/hair-loss

• "Nutrition and Hair Loss: What You Need to Know" by the Mayo Clinic: https://www.webmd.com/skin-problems-and-treatments/hair-loss/understanding-hair-loss-basics

• "The Importance of Protein for Hair Health" by Healthline: https://www.webmd.com/skin-problems-and-treatments/hair-loss/understanding-hair-loss-basics

Iron:

• "Iron Deficiency and Hair Loss" by the Cleveland Clinic: https://www.medicalnewstoday.com/articles/321668

• "How Iron Deficiency Can Cause Hair Loss" by WebMD: https://www.webmd.com/skin-problems-and-treatments/hair-loss/default.htm

• "Iron and Hair Loss: Understanding the Connection" by Everyday Health: https://www.healthline.com/health/iron-deficiency-and-hair-loss

Vitamins A, C, D, E, and Zinc:

• "How Vitamins and Minerals Affect Hair Growth" by the National Institutes of Health (NIH): https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5315033/

• "Nutritional Deficiencies and Hair Loss" by the American Hair Loss Association (AHLA): https://www.americanhairloss.org/general/about_us.html

• "The Best Foods for Healthy Hair" by Healthline: https://www.webmd.com/beauty/ss/slideshow-foods-healthy-hair