basic concepts
     Health: The merging and balancing of five 
      physical and psychological dimensions of 
      health: physical, mental, emotional, social, 
      and spiritual. 
     Nutrition:  The study of essential nutrients 
      and the process by which nutrients are used 
       and quality of nutrients
     Nutrients: Substances in food required by 
      the body for energy, growth, maintenance 
      and repair.
    Role of nutrition:
      Physical health of the body .depends on the 
       quantity and quality of nutrients,
      Intellectual health relies on a well functioning brain 
       and central nervous system, (iron deficiency 
      . anemia affects intellectual health),
      Emotional health may be influenced by poor eating 
       habits (hypoglycemia),
      Social health often centers around food-related 
       occasions, and
      Spiritual health often has ties to food.
     Health promotion: increases the level of 
     health of individuals, families, groups, and 
     communities.
     Role of nutrition:
     Healthy people 2010, defines some 
     objective nutrition as decreasing daily fat 
     intake, and less total caloric intake.
     
     Wellness: is a lifestyle that enhance each 
      of the five dimensions of health. Wellness 
      nutrition approaches food consumption as 
      a positive way to nourish the body. 
      Consuming a diet based on lower 
      fat/higher fiber and moderate caloric 
      consumption is essential to convey 
      competency to care for ourselves
     Disease prevention:
     Is the recognition of a danger to health 
      that could be reduced or alleviated 
      through specific actions or changes in life 
      style behaviors.
     There are three levels of prevention,
     Primary: activities to avert the initial 
      development of a disease or poor health, 
      low fat and high fiber diet is important;