r*******u
发帖数: 8732 | 1 美研究：反脂损心臟大脑
可乐薯条加快脑退化
【明报专讯】美国医学期刊《Neurology》刊登一项研究指出，可乐、薯条等加工食物
会加速大脑退化，相反含维他命的食物和鱼则能延缓大脑萎缩，有助预防脑退化症。
香港脑科专家认為，研究有参考价值，有助日后深入研究脑患病风险。
含维他命食物缓脑萎缩
美国奥勒岗健康与科学大学早前分析了104名、平均87岁的健康长者与脑退化症患者的
血液样本，并在上周公布结果。
结果发现，健康长者的血液中，拥有较多Omega-3不饱和脂肪酸与维他命B、C、D和E，
他们在记忆力和思维测试中表现较佳，反应能力也较好。相反，脑退化症患者血液则有
较多反式不饱和脂肪酸，最常见于加工食品，如蛋糕和油炸食物。
研究人员随后扫描42名长者的大脑。结果显示，血液中维他命和Omega-3不饱和脂肪酸
水平高的长者大脑容量更大，相反血液中反式脂肪多的长者大脑容量小。
研究员认為，反式脂肪不仅有损心臟，亦损大脑，建议大眾可从调整饮食结构，延缓大
脑萎缩，保持思维敏捷。
英国脑退化症研究中心表示，数据可看到血液中的营养物质和脑退化症相关，但实际影
响程度则需要更深入研究，才能确定饮食是否对病症有帮助。
港大内科学系脑内科教授张德辉表示，已有研究确认中风和脑损伤会增加脑退化风险，
而反式不饱和脂肪酸亦会增加血管风险，造成如发炎等脑损伤。
但他认為，研究如以追踪模式进行会较准确，长者或会因本身出现病患、减少运动，或
会因照顾者提供食物不健康，影响研究结果。
香港营养师协会会长林思為表示，长期进食加工食物会令进食健康食物的机会减少，香
港有近8成市民经常出外午餐，会增加进食加工食物风险，建议多吃蔬果平衡。
| e**t
发帖数: 358 | 2 只提到反式脂肪了
题目和内容对不上
可乐是怎么回事
薯条,麦当劳几年前就停止使用方式脂肪了 | r*******u
发帖数: 8732 | 3 When somebody drinks a Coke watch what happens…
•In The First 10 minutes: 10 teaspoons of sugar hit your system. (100%
of your recommended daily intake.) You don’t immediately vomit from the
overwhelming sweetness because phosphoric acid cuts the flavor allowing you
to keep it down.
•20 minutes: Your blood sugar spikes, causing an insulin burst. Your
liver responds to this by turning any sugar it can get its hands on into fat
. (There’s plenty of that at this particular moment)
•40 minutes: Caffeine absorption is complete. Your pupils dilate, your
blood pressure rises, as a response your livers dumps more sugar into your
bloodstream. The adenosine receptors in your brain are now blocked
preventing drowsiness.
•45 minutes: Your body ups your dopamine production stimulating the
pleasure centers of your brain. This is physically the same way heroin works
, by the way.
•>60 minutes: The phosphoric acid binds calcium, magnesium and zinc in
your lower intestine, providing a further boost in metabolism. This is
compounded by high doses of sugar and artificial sweeteners also increasing
the urinary excretion of calcium.
•>60 Minutes: The caffeine’s diuretic properties come into play. (It
makes you have to pee.) It is now assured that you’ll evacuate the bonded
calcium, magnesium and zinc that was headed to your bones as well as sodium,
electrolyte and water.
•>60 minutes: As the rave inside of you dies down you’ll start to
have a sugar crash. You may become irritable and/or sluggish. You’ve also
now, literally, pissed away all the water that was in the Coke. But not
before infusing it with valuable nutrients your body could have used for
things like even having the ability to hydrate your system or build strong
bones and teeth.
So there you have it, an avalanche of destruction in a single can. Imagine
drinking this day after day, week after week. Stick to water, real juice
from fresh squeezed fruit, and tea without sweetener. |
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