Set of 3 books on health through diet These books primarily discuss the currently trending topic of removing the "four poisons" (shi-doku), promoting health through vitamins and minerals, and maintaining health by incorporating citric acid and baking soda. The content is very informative. Since all the authors are doctors, the content includes some medical discussions, but I believe that makes the content more substantial. All three books are in good condition. During visual inspection, only book ③ has one instance of highlighting (light green). I didn't see any other highlighting, but there might be some oversight. However, it's not noticeable when reading, so it's a great deal for those who don't mind. The other two books, as far as I could tell, have no notes or highlighting, but please understand that these are used items. [Contents] ① Don't Rely on Doctors or Medicine: You Can Heal All Your Ailments Yourself / Tokumi Fujikawa List Price: ¥1,300 ② No Need for Doctors with Citric Acid / Masamatsu Osada, Toru Kojima List Price: ¥1,100 ③ The Doctor's Guide to Eating: The Ultimate Textbook - 68 Medically Correct Ways to Eat, Based on Treating 200,000 Patients / Zenji Makita List Price: ¥1,500 [Purchase Date] Around 2020 [Accessories] None [Shipping Method] Yu-Yu Mercari Delivery