轉自: http://xue.youdao.com/biarticle.a?articleId=-141270291239552769&keyfrom=PopWindow&date=2013-08-08&abtest=0Broccoli: A Wonder Vegetable
Next time your child asks why they have to eat broccoli, you can give them the reason – thanks to scientists who made people eat it every day for three months.
They discovered that a chemical found solely in the vegetable helps maintain the health of the tiny "batteries" which power the body’s cells.
This, it is thought, helps ward off health problems including cancer and heart disease.
Scientists from the Institute of Food Research in Norwich ran detailed blood tests on men and women before and after they ate the vegetable.
Nineteen volunteers ate 400g of broccoli a week – three florets a day – alongside their normal food for three months.
Another 19 ate a "super-broccoli" called Beneforte, which is bred to be extra-rich in glucoraphanin, a plant chemical.
The final group ate peas.
Eating the glucoraphanin-rich broccoli led to improvements in the various chemical reactions that go on inside mitochondria, the "batteries" in cells.
They also have several other vital functions, which all need to be in balance for good health.
While researchers believe the same benefits could be obtained by eating normal broccoli, there’s some bad news if you’re not a fan of it – they think you’d need to eat three times as much.
Researcher Professor Richard Mithen said: "Mitochondria are really, really important and when they start to go wrong it leads onto many of the diseases of aging."
"We think this provides some evidence as to why people who eat diets rich in broccoli may keep in good health."
He added: "The message is to eat a balanced diet and get some exercise and if you want to eat Beneforte broccoli, that’s all well and good and it may give you a little extra benefit. "
轉自: http://www.360doc.com/content/13/0808/11/4186481_305559608.shtml
2013-08-01
下次,你的孩子問為什麼他們要吃花椰菜,你就可以給他們解釋理由了,多虧科學家們做的這項研究讓志願者每天都吃西蘭花,堅持吃三個月的時間,得出了研究結論給出了問題的答案。
他們僅在西蘭花這種蔬菜中發現一種類似小‘電池’功能的化學物質,它有助於保持細胞的健康。
認為這種蔬菜有助於抵禦包括癌症和心臟病這類健康問題。
吃富含硫代葡萄糖苷的西蘭花可改進線粒體中‘電池’細胞的各種化學反應
諾維奇食品研究所的科學家對吃了西蘭花這種蔬菜前後的男性和女性做了詳細的血液測試。
第一組的19名志願者一周吃了400克西蘭花,堅持吃了三個月,除了正常吃飯外,每天都吃三小朵西蘭花。
另一組的19名志願者吃了一種稱為Beneforte的‘超級花椰菜’,對這種花椰菜另外進行培育使其富含硫代葡萄糖苷這種植物中含的化學物質。
最後一組志願者吃豌豆。
吃富含硫代葡萄糖苷的西蘭花可改進線粒體中‘電池’細胞的各種化學反應。
花椰菜這類蔬菜也有一些其他的重要功能,都是健康平衡飲食所需的。
雖然研究人員認為平時常吃花椰菜對健康同樣有益,但是如果你不喜歡吃西蘭花的話,他們認為你需要吃三倍的西蘭花。
僅在西蘭花中發現這種化學物質,其功能像小‘電池’一樣有助於保持身體細胞的健康
這項研究的研究員理查德教授說:‘線粒體真的、真的很重要,當線粒體開始出現問題,則會引起許多與年老有關的疾病。’
‘關於為什麼那些節食減肥的人吃西蘭花可以維持身體健康,我們認為這項研究結果為其提供了一些證據。’
他補充說:‘發布這個訊息就是為了讓人們均衡飲食並鍛煉身體,如果你想要吃Beneforte西蘭花,這種蔬菜對身體健康有益,並且它可能會對你的身體健康有額外的好處。’
‘每周吃兩、三次可能就足夠了,我認為許多人都不想一周吃西蘭花的次數超過三次。’