价值和有利健康因素与常规食品并没有多大差别。接下来，小编给大家准备了,欢迎大家参考与借鉴。
Organic food has no nutritional or health benefits over ordinary food, according to a major study published Wednesday.
Organic food has no nutritional or health benefits over ordinary food, according to a major study published Wednesday.
Researchers from the London School of Hygiene & Tropical Medicine said consumers were paying higher prices for organic food because of its perceived health benefits, creating a globalorganic market worth an estimated $48 billion in 2007.
A systematic review of 162 scientific papers published in the scientific literature over the last 50 years, however, found there was no significant difference.
"A small number of differences in nutrient content were found to exist between organically and conventionally produced foodstuffs, but these are unlikely to be of any public healthrelevance," said Alan Dangour, one of the report's authors.
"Our review indicates that there is currently no evidence to support the selection of organically over conventionally produced foods on the basis of nutritional superiority."
The results of research, which was commissioned by the British government's Food Standards Agency, were published in the American Journal of Clinical Nutrition.
Sales of organic food have fallen in some markets, including Britain, as recession has led consumers to cut back on purchases.
The Soil Association said in April that growth in sales of organic products in Britain slowed to just 1.7 percent in 2008, well below the average annual growth rate of 26 percent over thelast decade, following a plunge in demand at the end of the year.
扩展：分类词汇之疾病
nurse：护士
a fever：发热
cough：咳
pulse：脉搏
chest：胸部
blood pressure：血压
prescription1：药方
tonic2：补药
druggist：药剂师或药商
consulting room：诊疗室
ambulance：救护车
appendicitis3：盲肠炎
dysentery：痢疾
skin disease：皮肤病
tuberculosis4 =T.B.：肺病
bad cold：重伤风
sore throat：喉痛
headache：头痛
temperature：体温
deep breath：深呼吸
a shot：打一针药
injection：注射
drugstore：药房
waiting room：候诊室
ward5：病房
cholera6：霍乱
malaria7：痢疾
whooping8 cough：百日咳
diphtheria：白喉
measles9：麻疹
inoculation10：预防注射
to feel well：觉得身体好
ache all over：周身痛楚
a couple of days：一两天
to have a bad cold：患重伤风
to fill a prescription：配药方
to have a sorethroat：喉痛
to consult a doctor：请医生诊治
to decide to see Dr.：决定去给……医生诊冶
to wait for one's turn：等候轮到
two degrees of fever：发热两度
typhoid fever：伤寒症
to take a deep breath：深呼吸一下
the charge for a consultation：诊疗费
an incurable disease：不能医好的病
to prescribe medicine for a disease：开药方治病
to communicate disease：传播着病
infantile paralysis 或polio：小儿麻痹症
