In this episode, the speaker talks about nutrition, fitness, and lifestyle changes. He advises listeners to focus on one day at a time and start small when trying to make changes. He also debunks some nutrition myths, such as the belief that eating fast food will make you gain weight and that eating after 6 p.m. will make you fat. Furthermore, he emphasizes the importance of enjoying the process and trusting yourself when it comes to making changes. He encourages listeners to commit to one big thing each day that will have an impact on their life, whether it be related to fitness or something else.