Title Page -- Dedication -- Table of Figures -- Preface -- PART ONE - All About Pica -- CHAPTER ONE - What on Earth? -- The Pica Substances -- "A devouring passion" -- Who Does Pica? -- But Why? -- CHAPTER TWO - A Biocultural Approach -- The Biocultural Perspective -- Pica Data in This Book -- CHAPTER THREE - Medicine You Can Walk On -- The Amazing Properties of Clays -- Early Pharmacopeia -- Modern Medicine -- CHAPTER FOUR - Religious Geophagy -- Christianity -- Islam -- Hinduism -- Hoodoo -- CHAPTER FIVE - Poisons and Pathogens -- Anemia -- Heavy Metal Poisoning -- Geohelminths -- Other Physical Damage -- PART TWO - But Why? -- CHAPTER SIX - Dismissal and Damnation -- "The natives" -- Slaves -- "The weaker sex" -- Sandlappers -- Children -- The Mentally Disturbed -- Concealment of Pica Today -- Establishing Accurate Estimates of Pica Behavior -- CHAPTER SEVEN - Pica in Response to Food Shortage -- Earth as a Famine Food -- Testing the Hunger Hypothesis -- CHAPTER EIGHT - Pica as a Micronutrient Supplement -- Testing the Micronutrient Supplement Hypothesis -- Could Pica Cause a Micronutrient Deficiency? -- CHAPTER NINE - Pica to Protect and Detoxify -- Toxins and Pathogens -- The Protective Capacity of Clays -- Testing the Protection Hypothesis -- CHAPTER TEN - Putting the Pica Pieces Together -- What We Know -- What We Don't Know -- Why We Need to Know It -- APPENDIX A - Notable Moments in the History of Pica -- APPENDIX B - Prevalence of Pica Among Representative Populations of Pregnant ... -- APPENDIX C - Prevalence of Pica Among Representative Populations of Children (n=11) -- APPENDIX D - Pica in Literature -- APPENDIX E - Association Between Pica and Iron Deficiency and/or Anemia in ... -- APPENDIX F - Association Between Pica and Zinc Deficiency in Cross-Sectional ... -- APPENDIX G - Predictions -- Notes -- Glossary -- Works Cited.

Acknowledgements -- Index -- Copyright Page.