This Episode analyze the relationship between nutritional intake and hair health, specifically highlighting how deficiencies in vitamins like D, C, and B-complex, or minerals such as zinc and iron, can trigger shedding. Medical experts emphasize that while targeted supplementation may assist those with proven deficiencies, excessive consumption of certain nutrients can actually be toxic and exacerbate hair loss. Branded "nutraceuticals" like Nutrafol and Viviscal are discussed alongside clinical data, though critics warn of misleading marketing and the importance of independent third-party testing for purity. Regulatory bodies like the FDA and FTC provide guidelines to help consumers identify fraudulent health claims and "miracle" scams that lack scientific substantiation. Ultimately, professionals recommend a balanced diet as the primary source of nutrients and suggest consulting a dermatologist before beginning any new supplement regimen.