title: Milk consumption and lactose intolerance in adults.
abstract: OBJECTIVE
  To investigate relations between milk consumption and lactose intolerance (LI) in adults and to explore the effect of milk consumption on lactase activity.
  
  
  METHODS
  Total of 182 subjects aged 20-70 years were recruited and interviewed by questionnaires, and their accumulative cow's milk intake (AMI) was calculated. LI was evaluated by hydrogen breath test (HBT).
  
  
  RESULTS
  A negative correlation was found between AMI and severity of observed LI symptom (r=-0.2884; P<0.05). Binary logistic regression analysis showed a negative correlation between LI and duration and frequency of milk consumption (OR, 0.317 and 0.465, respectively; both P<0.05) and a positive correlation between LI and amount of milk consumed per sitting (OR, 6.337; P<0.05).
  
  
  CONCLUSIONS
  LI is related to various milk consumption behaviors. Most Chinese adults with LI may tolerate moderate milk consumption <160 mL.
authors: Department of Nutrition and Food Safety, Sichuan University, Chengdu 610041, Sichuan, China. qiaoron@hotmail.com
authors: Rong
authors: R
authors: Qiao
authors: ChengYu
authors: C
authors: Huang
authors: HuiZhang
authors: H
authors: Du
authors: Guo
authors: G
authors: Zeng
authors: Ling
authors: L
authors: Li
authors: Sheng
authors: S
authors: Ye
mesh_terms: D000328:Adult; D000818:Animals; D001944:Breath Tests; D002681:China / Q000453:epidemiology; D004327:Drinking Behavior; D006801:Humans; D006859:Hydrogen; D043322:Lactase / Q000378:metabolism; D007785:Lactose; D007787:Lactose Intolerance / Q000175:diagnosis / Q000453:epidemiology* / Q000517:prevention & control; D008892:Milk; D015995:Prevalence
chemical_list: D006859:Hydrogen; D043322:Lactase; D007785:Lactose