The product is a collection of four books by Dr Michael Mosley, including “The Fast 800” "The Fast 800 Keto," "Clever Guts Diet," and "8 Week Blood Sugar Diet." These non-fiction books are geared towards adults and focus on food and drink, providing insights and guidance on various diets and lifestyle changes. With a total of 288 pages, these paperback books offer practical advice and tips for improving one's health and well-being through dietary changes, making them a valuable resource for readers interested in personal development and nutrition.