This clip explains how the body stores and removes fat. It dispels the notion that we gain weight because we eat more; rather, we eat more before we're gaining weight. It also explains how carbohydrates can contribute to weight gain.
Hank explains the different types of nutrients that our body needs: water, vitamins, minerals, carbohydrates, lipids (fats), and proteins. He explains what each type of nutrient is used for and how it's used by the body.
Hank explains how DNA and three specialized versions of RNA synthesize proteins. He delves into the process of transcription, which involves copying genetic information from DNA to RNA.
Sophie explains why we eat food: to ingest chemicals such as nutrients. She dissects a salad to illustrate the different types of nutrients our body needs: carbohydrates, proteins, and fats. She provides an example of each type of nutrient.