2 What is a Nutrient?A nutrient is a chemical substance in food needed by the body for growth, energy, and life processes.The six nutrients are carbohydrates, proteins, fats, vitamins, minerals, and water.
3 CarbohydratesCarbohydrates are nutrients that supply your body with energy.There are three kinds:sugar cellulose starch
4 Sugar – A Simple Carbohydrate Are “simpler” compoundsThey are digested and used quickly by your body.Sugar examples are glucose, sucrose, fructose, and lactose.They give your body short, quick bursts of energy.
5 Starch and Cellulose - Complex carbohydrates Are more “complex” moleculesThey take longer to digest and use.They give your body energy over long periods of time.cellulosestarch
6 ProteinsProteins are nutrients that help your body grow, build, and repair body tissues.You need 8 essential “amino acids” from food (the building blocks of protein).When carbohydrates and fats have been used up, proteins can also be used for energy.
7 ProteinsSome food sources of protein are: milk products, fish, meat, poultry, beans, grains, and nuts.
8 Fats Fats are energy-storage nutrients. Fat that is stored in the body is used for insulation and cushioning of internal organs.Fats are classified as unsaturated and saturated.
9 Unsaturated Fats come from plant sources are usually liquid at room temperatureare often called “oils”are consideredhealthier for you
10 Saturated Fatscome mainly from animal sources such as meat, eggs, and milk productsare usually solid at room temperaturecan give you too much cholesterol which can clog your arteries
11 Vitamins help your body use other nutrients help promote growth and regulate body functionsno one food contains them all, but some foods supply more than others
15 Water most chemical reactions in the body need to take place in water body is 60% water by weightwater is found in and around cells and in plasma and lymphyou lose about 2 Liters of water every day through excretion, perspiration, and respiration
16 Food Groups Nutritionists recommend eating a variety of foods. Foods that contain the same nutrients belong to a “food group”.Recommendations for how much of each food group should be in your daily diet are changing along with new research.
20 AntioxidantsSome chemicals that enter the body can react with oxygen and cause cancer.Antioxidants prevent this from happening.They are “substances that prevent other chemicals from reacting with oxygen”.There are antioxidants in fruits and vegetables, especially yellow-orange pigmented ones.