“Grab and go!” glittering windows of many fast food restaurants in the new 21st century. “It's really convenient and saves time,” my old neighbor whispers to me like a secret. “Today is my birthday! Let's go to McDonald's and order burgers and cheese fries!” – My granddaughter is screaming with joy in my face. Finally, a really big burger appears on the TV screen during the commercial and it looks juicy with fresh green salads that force each of us to get hungry. However, fast food restaurants not only serve food lacking in vitamins and non-nutritive value, but are also responsible for species becoming extinct, reducing biodiversity, worsening human health, and risking depletion of natural sources of food and medicine. which can lead to the extinction of man. So, eat more diverse foods and say “No!” to fast food, it can be the solution on how to stay healthier, live longer while preserving biodiversity, natural resources of food and medicine for our future generations. Even if we try to simplify our life by eating faster, but our bodies require biodiversity, otherwise they respond to us negatively. Rust-colored potatoes are predominantly used to produce French fries or crisps; however, multiple types of potatoes can be used, each of which contains different nutritional elements that positively influence the metabolism. It seems that our ancestors ate more differently and nowadays man simplifies his life without considering his health. In terms of nutrition and health, throughout history it is estimated that humans have used more than 10,000 species of edible plants, but now just 150 are cultivated. the human diet. Most people live by no more than 12 species. Doctors recommend a much wider variety of foods for good health (Hiramoto 35-37). Apparently, it not only hums...... middle of paper ......about aflatoxin B1 in corn and barley as a quality assessment analysis." Food Chemistry 113.2 (15 March 2008): 629- 634.Hiramoto, Meriel."Asahi Evening News.""Diet diversity helps preserve species." Global Outlook High Intermediate Reading. Ed. Brenda Bushell and Brenda Dyer New York: McGraw-Hill, 2003. Raloff, Janet. “Americans eat faster and more.” -382.ROSENTHAL, ELISABETH “Fast food hits the Mediterranean; a diet succumbs." New York Times (September 24, 2008). Rydell, Sarah A., et al. "Why Eat at Fast-Food Restaurants: Reasons Reported Among Regular Eaters." Journal of the American Dietetic Association 108.12 (December 2008) . 2008): 2066-2070Sass, Cynthia A. “The Worst Diet for Your Heart.” Prevention 60.4 (April 2008): 78-78".. 1996): 20-23.