视频文本

Soy provides high quality protein from a plant source.
大豆富含蛋白质
The protein in soy is similar to the quality of the
大豆中的蛋白质和牛奶，肉类以及
protein in milk, meat, and eggs. For vegetarians,
鸡蛋中的蛋白质相似，对于素食主义者
soy protein is an important part of the diet. In addition,
大豆是蛋白质的重要来源
recent research has shown regular consumption of soy
除此之外，近期的研究显示，长期食用大豆
protein reduces the risk of cardiovascular disease.
可以减少罹患心脑血管疾病的风险
It is recommended that 25 grams of soy protein be
为了身体健康，每日的大豆建议
consumed per day for this health benefit.
服用量为25克
Soy has received attention also because it contains
大豆之所以取得人们的关注还因为
compounds called isoflavones that mimic the
它含有异黄酮，其作用与
human female hormone estrogen. These compounds
女性雌激素类似，它们与雌激素
bind in the same receptor as estrogen and therefore
对人体的影响相似，它与雌激素能在
can trigger responses similar to estrogen. This can
人体引起相似的反应
have both positive and negative consequences.
它能带来积极和消极两方面的影响
The positive benefits of soy isoflavones include
大豆异黄酮的积极影响在于
providing a natural therapy for menopausal symptoms
可以改善如潮热等更年期症状
including hot flashes. Some negative consequences
而他的消极影响在于
include risk of increased estrogen exposure in women
女性体内雌激素过量
with estrogen responsive breast cancers. In general,
可能增加一些女性罹患乳腺癌的几率
research suggests consumption of soy foods with
通常研究表明，食用本身就含有
natural levels of isoflavones is very safe and
异黄酮的大豆类食物是十分安全的
provides health benefits. Women taking anti-estrogen
并且对健康有益，但是正在接受抗雌激素
medications or with a history of breast cancer,
治疗的女性，或有乳腺癌病史的女性
however, should consult their physician before
在增加大豆食品的食用量之前
increasing their consumption of soy foods.
应当首先咨询医生
Do note that soy is a very versatile plant and is
我们要注意，大豆是一种万能食材
used in foods in a variety of forms. Soy oil does not
能够被做成各种食物制品，大豆油
contain any isoflavones or protein. Soy protein
不含异黄酮和蛋白质，大豆蛋白
sometimes called textured vegetable protein usually
有时也被叫做结构性植物蛋白，通常不含有
does contain isoflavones, but the concentration
异黄酮，但蛋白质的含量则由
will vary with the way the protein was processed.
蛋白质被加工和处理的方式有关
Soy milk is an extract of the soybean that contains
因此豆奶是大豆经过提取的产物
mostly protein. The isoflavone content will vary
主要含量就为蛋白质，异黄酮含量
depending on the manufacturer's process. Soy milk
则由制作过程决定，豆奶被用来制作
is used to make yogurts, cheese, and ice cream.
酸奶，奶酪和冰激凌
Tofu is another form of soy protein that comes in
豆腐是大豆蛋白质的另一种形式
a range of densities, firm to soft, that allows a wide
由于豆腐的硬度不同，其蛋白质含量和
variety of uses. And, finally, edamame is a variety
功效各不相同，盐水毛豆是一种
of whole soybeans than can be eaten as vegetables.
大豆制品，它可以被当做蔬菜食用
Whole grains are important super food because they are
天然谷物是超级食物，因为它们富含
rich in many nutrients and dietary fiber. Oats were
多种营养成分和纤维素，燕麦是美国
the very first food granted health claim approved by
食品及药物管理局最先确定其健康功效的
the FDA. It was demonstrated that regular consumption
食品，研究表明，每天食用一定量的燕麦
of oats, including oatmeal, reduced the risk of
包括燕麦片，能够减少罹患心脏病的几率
heart disease. Oats contain soluble fiber which may
燕麦含有可溶性纤维素
act as a type of sponge in the large intestine to
它像海绵一样，在消化道中防止
prevent cholesterol from being absorbed by the body
身体吸收胆固醇
thereby lowering blood cholesterol levels.
由此降低血液内胆固醇额含量

视频及简介

视频简介：

本课程的目标是，向公众提供最新的有关营养方面的信息和话题，内容涵盖饮食因素对于癌症的影响作用，健康的饮食习惯，学校能提供的营养有哪些，咖啡因与癌症的联系，水果蔬菜与癌症预防等。通过本课程的学习，人们可以学习到健康的生活饮食习惯，在每天的饮食中防癌症于未然