In the modern world the main purpose of food seems to be nothing more than to satisfy appetite and hunger. Although once your taste preferences are satisfied, the dining experience can be enjoyable. But hunger and thirst are the body's way of sending a message that it needs more energy to burn in order to perform at its best. The source of energy the body receives is significantly important to how the body reacts. Just as automotive vehicles do not all use the same gasoline, humans must also choose the right fuel source. Water, for example, is a liquid that makes up about 50% of the human body. Water contains electrolytes and once consumed will result in the maintenance of active electrons across the cell membrane. In addition to restoring the body's nutrients, food has a strong impact on mood. The contents of the food one consumes will ultimately affect a person's psychological health. The basic components that make up the average person's diet contain a variety of proteins, carbohydrates, fats, as well as vitamins and minerals that have a great impact on mood. The main compound in the cells that make up the human body are acidic amino acids found in food proteins. Foods such as meat, dairy products and cereals are valuable sources of amino acids. Amino acids provide antibodies or other immune cells to help the body fight any type of infection, inflammation or bacteria. Furthermore, proteins also help in the production of enzymes and hormones. While protein helps strengthen the body's health from the inside out, many diets focus on protein intake while subtracting carbohydrates, this method is highly ineffective. Carbohydrates are the body's largest source of energy. This energy is produced as... half of the paper...l" how different types of foods affect the way you feel. Start with foods that help positively improve mood and how the lack of certain nutritional foods can greatly affect mood. Also explains how too much of something, like fat, has a link to depression and dementia. Krucik, George, MD "Mood Food: Can What You Eat Affect Your Happiness?" Healthlines RSSNews The Healthline editorial team, June 18 2013. Web. November 26, 2013. The Healthline editorial team provides a step-by-step descriptive process on what to eat, when to eat, and how to eat certain foods to improve mood A Much of this article focuses on informing the reader about what exactly should be taken to get a positive result from consuming the foods that serve as fuel for the body. It also provides the reader with information on what not to consume.