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 we...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;P0.05).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 P0.05) and a positive correlation between LI and amount of milk consumed per sitting (OR,6.337;P0.05).Conclusion LI is related to various milk consumption behaviors.Most Chinese adults with LI may tolerate moderate milk consumption 160 mL.展开更多
China's dairy industry has experienced rapid expansion in recent years, with an average annual growth rate of 23.8 percent from 2000 to 2006. However, there exists a serious geographical distribution imbalance in mil...China's dairy industry has experienced rapid expansion in recent years, with an average annual growth rate of 23.8 percent from 2000 to 2006. However, there exists a serious geographical distribution imbalance in milk production and consumption. Approximately 85 percent of China's milk is produced in northern China, where 40 percent of the country's population reside. In contrast, only about 15 percent of the milk is produced in China's south, where 60percent of China's population reside. This has resulted in a significant gap between milk production and consumption in southern China and this gap is expected to rise. This paper considers China's milk demand and supply situation, analyzes the likely potential for China to expand its milk production and explores options for meeting milk demand-supply shortages. Policy and trade implications are discussed.展开更多
基金supported by a grant from the National Natural Sciences Foundation of China (No. 30271126)
文摘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;P0.05).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 P0.05) and a positive correlation between LI and amount of milk consumed per sitting (OR,6.337;P0.05).Conclusion LI is related to various milk consumption behaviors.Most Chinese adults with LI may tolerate moderate milk consumption 160 mL.
文摘China's dairy industry has experienced rapid expansion in recent years, with an average annual growth rate of 23.8 percent from 2000 to 2006. However, there exists a serious geographical distribution imbalance in milk production and consumption. Approximately 85 percent of China's milk is produced in northern China, where 40 percent of the country's population reside. In contrast, only about 15 percent of the milk is produced in China's south, where 60percent of China's population reside. This has resulted in a significant gap between milk production and consumption in southern China and this gap is expected to rise. This paper considers China's milk demand and supply situation, analyzes the likely potential for China to expand its milk production and explores options for meeting milk demand-supply shortages. Policy and trade implications are discussed.