This document provides an introduction and summary of the first 4 chapters of a book about healthy eating. The introduction discusses the challenges of eating healthy and forming good habits. Chapter 1 explains why eating healthy is important for avoiding obesity and diseases. Chapter 2 discusses understanding one's relationship with food and habits. Chapter 3 warns about the dangers of fad diets and how they can harm health and metabolism. Chapter 4 provides an overview of the traditional USDA food pyramid as a guideline for nutrition.