title: [The methods to reduce the prevalence of lactose intolerance in children].
abstract: OBJECTIVE
  To identify methods in reducing the prevalence of lactose intolerance in children.
  
  
  METHODS
  A hydrogen respiration test (HRT) method was used in screening lactose intolerance (LI) subjects after taking 25 g of lactose among 106 children aged from 10 to 11 years old in a primary school located in the suburban area of Beijing. A cross-design was used to detect the effects of low lactose milk, yogurt and cereal-effect among 68 selected LI children.
  
  
  RESULTS
  The incidence of LI was 80.2% after the children took 25 g of lactose, and after taking a 250 ml of full milk, lactase-fermented milk, coinfected milk, yogurt, or milk with meal, the LI incidences were 21.1% (12/57), 0% (0/25), 6.1% (2/33), 8.6% (3/35) and 13.6% (3/22) respectively.
  
  
  CONCLUSIONS
  Low lactose milks and yogurt could reduce the LI incidence among LI children significantly.
authors: National Institute for Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
authors: Xian-feng
authors: XF
authors: Zhao
authors: Li-li
authors: LL
authors: Pan
authors: Jing
authors: J
authors: Meng
authors: Yin
authors: Y
authors: Wang
authors: Shi-an
authors: SA
authors: Yin
mesh_terms: D000818:Animals; D002648:Child; D002681:China / Q000453:epidemiology; D002523:Edible Grain; D006801:Humans; D015994:Incidence; D007785:Lactose / Q000008:administration & dosage; D007787:Lactose Intolerance / Q000178:diet therapy* / Q000453:epidemiology; D008892:Milk; D015995:Prevalence; D013334:Students / Q000706:statistics & numerical data; D016896:Treatment Outcome; D015014:Yogurt
chemical_list: D007785:Lactose