Persuasive speaking aims to convince an audience to take a specific action through oral arguments. Fast food contains ingredients that are not real food but rather processed slime, and raises health issues. It can lead to obesity from extra calories and high sodium and fat. Heart disease, liver damage, and malnutrition are also risks due to fast food's high sodium, cholesterol, and lack of nutrients. While convenient, fast food should be avoided as it is not real food and can seriously impact health.