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• Food needs of teenagers are higher than children and adults because of their rapid growth and very active life
• Food provides the body with the energy needed for the different activities that we do everyday
• Eating different kinds of food assures the consumption of all the nutrients essential for a healthy body

  
• Health is dependent on a balanced supply of nutrients
• Lack of essential nutrients, excess of certain nutrients, or imbalance among nutrients may seriously impair health
• Food


  Anything that we eat which provides nutrition to the body
• Nutrition


  • The science of food and its relation to health
  • The study of food that we eat and how the body uses it
• Functions of Food Nutrients in the Body

  1. Build new cells and repair those that are worn out every day

  2. Regulate complex body processes

  3. Supply energy to maintain life and to carry out daily activities
• Good nutrition can help guard against malnutrition and help prevent diseases such as obesity, diabetes and cancer
• Classification of Foods by Origin

  • Food of plant origin
  • Food of animal origin
• Classification of Foods by Nutrient Content

  • Carbohydrate
  • Protein
  • Fat
  • Vitamins and Minerals

  
• Carbohydrate

  • Contains glucose
  • Provides heat and energy for the body necessary for work and activity and maintenance of body temperature
• Protein


  • Contains amino acid
  • For building body cells and tissues
• Fat

  • Contains fatty acids
  • Source of more energy for the body
• Fruits and vegetables are good sources of vitamins and minerals
• Lack of vitamins and minerals can cause nutritional deficiency
• Nutritional Deficiency Diseases

  • Beri-Beri
  • Scurvy
• Water


  Essential for life because it dissolves all nutrients to be absorbed by the body
• Basic Food Groups

  • Energy Food
  • Body-building Food
  • Body-regulating Food
• Energy Food


  Contains carbohydrates, source of calorie that is used by the body to keep it warm and maintain all the body processes
• Calorie


  A standard measure of energy and the unit that is used the value of food and the amount of energy that the body burns each day
• Types of Carbohydrates

  • Sugar
  • Starch
  • Cellulose/fiber/roughage
• Fat


  • A nutrient that supplies more energy than carbohydrates and protein
  • Contains carbon, hydrogen, and oxygen, and adds flavor to food
  • Can be saturated, unsaturated, and polyunsaturated
• Protein


  • Protein is essential to life and its main function is to build and repair cells
  • Proteins are made up of smaller units called amino acids which is composed of carbon, hydrogen, oxygen and nitrogen
  • Amino acids can be essential or nonessential
  • High-quality protein has all the essential amino acids needed by the body
• Body-regulating Food


  • Hormones
  • Enzymes
  • Vitamins and minerals
• Vitamins


  • Water Soluble
  • Fat Soluble
• Foods are grouped together because they provide similar amounts of key nutrients
• Nutrition and Personal Appearance


  • Skin
  • Teeth
  • Eyes
  • Hair and Nails
  • Body Size
  • Posture
  • Personal Appearance
  • Personality
• Junk Food


  Highly processed food that is made up of 'empty' calories foods loaded with full of saturated fat, sugar and devoid of nutrients which neither helps the body to nurture, focus and perform vital functions all through the day
• Healthy Food


  Fresh and natural products such as fruits, vegetables, whole grains, lean proteins and good fats that deliver your body with essential nutrients for carrying out several bodily processes, combat sickness and keep diseases at bay
• When you consume a diet that is packed with natural fresh produce, it facilitates to lower the risk of several chronic disorders like cancer, obesity, cardiovascular problems, diabetes and many more

  
• Healthy foods are mostly low on calories and contain huge amounts of vitamins, minerals, antioxidants and dietary fiber that are well-known for promoting total well-being

  
• Healthy foods like fruits and veggies or whole grain cereals are a source of good dietary fiber
• An adequate amount of fiber in the diet helps with delaying gastric emptying time, keep you satiated and prevent you from overeating
• Fiber-rich foods also benefit to maintain the digestive system healthy and function effectively thereby lowering cholesterol and blood glucose level
• Meal


  Any of the regular occasions in a day when a reasonably large amount of food is eaten, such as breakfast, lunch, or dinner
• Types of Meals

  • Lunch
  • Luncheon
  • Dinner
  • Supper
• Many Filipino Families eat together during lunch and supper, especially on weekends. However, since everybody seems to be busier these days, members now look for some places to eat their lunch
• The Menu

  • It includes all the food served at the meal
  • A weekly menu is a list of all the food served during a week including snacks
  • Meal planning saves the family from over spending on food and ensures the nutrition requirements of each member of the family
• Course


  Includes all the food that is served at the same time within a meal