Chapter 1: Stomach Acid https://www.youtube.com/watch?v=lzd4FUEJpIE&t=90s
Chapter 2: Poor Digestion https://www.youtube.com/watch?v=lzd4FUEJpIE&t=279s
Chapter 3: Protein enters methylation https://www.youtube.com/watch?v=lzd4FUEJpIE&t=328s
Chapter 4: Magnesium depends on other electrolytes https://www.youtube.com/watch?v=lzd4FUEJpIE&t=415s