Tom Perkins’ Guardian article summarizes a peer‑reviewed US study showing that diets (notably butter, processed meats, tea, bottled water and restaurant-prepared foods) and contaminated food packaging are linked to higher levels of PFAS ‘forever chemicals’ in human blood and highlights associated health risks and gaps in testing and regulation; this piece is included in PART 1: The Purposeful Investor, chapter “Your Capital And the Power of Generosity” (and listed in the appendix) because it illustrates a systemic, economically and regulatorily significant environmental‑health risk that investors should factor into value‑aligned capital allocation and engagement strategies.