102  Nutrition  &  Wellness  for  Life  Copyright  Goodheart-Willcox  Co.,  Inc.  Many  resources  are  designed  to  promote  wellness  across  the  life  span.  This  chapter  introduces  some  common  references  and  guidelines  available  to  health  professionals  and  consumers.  You  will  read  about  guidelines  for  making  health-  promoting  dietary  plans.  You  will  then  evaluate  your  eating  pattern  and  practice  applying  the  guidelines  to  your  food  choices.  Tools  for  Planning  Healthy  Eating  Health  experts  are  challenged  to  inform  people  about  how  to  meet  their  nutri-  tional  needs.  Many  boards,  councils,  and  committees  work  to  develop  tools  to  aid  consumers  in  selecting  a  healthy  diet.  These  tools  continue  to  be  revised  as  new  information  is  discovered.  Some  of  these  tools  are  intended  for  use  by  public  policy  makers  or  by  health  professionals  as  they  work  with  clients.  Other  tools  discussed  in  this  chapter  are  intended  for  use  by  consumers  to  aid  them  in  plan-  ning  for  healthy  eating.  Dietary  Reference  Intakes  In  the  1990s,  the  Food  and  Nutrition  Board  of  the  National  Academy  of  Sciences  and  Health  Canada  began  to  develop  new  dietary  standards  for  Americans  and  Canadians.  In  2005,  the  final  set  of  Dietary  Reference  Intakes  (DRIs)  was  released.  The  Dietary  Reference  Intakes  (DRI)  are  reference  values  for  nutrients  and  food  components  that  can  be  used  to  plan  and  assess  diets  for  healthy  people  (Figure  5.1).  The  purpose  of  the  DRIs  is  to  promote  health,  and  to  prevent  chronic  disease  and  the  effects  of  excessive  or  deficient  nutrient  intakes.  Types  of  DRI  The  DRIs  include  six  types  of  nutrient  reference  standards—Estimated  Average  Requirement  (EAR),  Recommended  Dietary  Allowance  (RDA),  Adequate  Intake  (AI),  Tolerable  Upper  Intake  Level  (UL),  Estimated  Energy  Requirement  (EER),  and  Acceptable  Macronutrient  Distribution  Ranges  (AMDR).  The  Estimated  Average  Requirement  (EAR)  is  a  nutrient  recommendation  estimated  to  meet  the  needs  of  50  percent  of  the  people  in  a  defined  group.  If  a  group  of  people  consumes  a  nutrient  at  this  level,  half  of  them  would  be  defi-  cient.  This  standard  is  based  on  scientific  evidence  and  is  used  for  calculating  the  Recommended  Dietary  Allowance.  The  Recommended  Dietary  Allowance  (RDA)  is  the  average  daily  intake  of  a  nutrient  required  to  meet  the  needs  of  most  (97  to  98  percent)  healthy  individuals.  RDAs  are  based  on  EARs.  The  RDA  can  be  used  as  a  goal  for  typical  daily  intake  for  individuals  in  a  particular  life  stage  and  sex  group.  Adequate  Intake  (AI)  is  a  reference  value  that  is  used  when  there  is  insufficient  scientific  evidence  to  determine  an  EAR  for  a  nutrient.  Since  an  EAR  cannot  be  established,  an  RDA  cannot  be  determined  either.  Instead,  the  intake  recommen-  dation  is  based  on  estimates  and  observations  of  people  who  appear  to  be  healthy  and  well  nourished.  As  more  research  becomes  available,  AIs  for  some  nutrients  may  be  replaced  by  EARs  and  RDAs.  AIs  are  used  for  all  nutrients  for  infants.  Yuriy  Golub/Shutterstock.com  Figure  5.1  Dietitians  and  nutrition  educators  use  the  Dietary  Reference  Intakes  for  dietary  planning  and  assessment.  
