This book provides an overview of the impacts of the healthy foods and natural environment on human health. It contains information collected from the review of many scientific literatures. Therefore, it is a very handy asset for people who want to be familiar with the important and impact of nature and healthy foods. Nature provides people with water, clean air, food, and raw materials for medicines and industry. Health is the level of functional or metabolic efficiency of a living organism. Nutrients are substances used by an organism to survive, grow, and reproduce. Nutrition is the...