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During this presentation
这节课
we will examine what a vegetarian diet is and cover the information you see here on the slide.
讲什么是素食者饮食以及这张幻灯片上提到的内容
We will look at the different forms of vegetarianism,
我们会讲到不同形式的素食主义
explore why people may choose to follow a vegetarian diet
探寻人们为什么会选择素食者
and consider the health advantages of this diet as well.
还有素食者饮食对健康的好处
Also this presentation will look at the best and most healthy food choices within a vegetarian diet,
我们还会讲到素食者饮食中选择哪些食物最好最健康
explore healthy cooking methods as well as those that would add unhealthy salt, sugar and fat,
如何烹饪食物更健康，以及会加入不健康的盐，糖和脂肪的烹饪方法
and then finally discuss the key nutrients and protein needs of people following this particular diet.
最后讲素食者应如何满足对关键营养物质和蛋白质的需求，
Let's begin.
下面开始具体讲
According to the American Dietetics Association a vegetarian diet is one that does not include meat,
根据美国营养学协会的定义，素食者饮食是不包括肉的饮食
which also includes fowl or seafood or products containing those foods.
这里的肉也包括家禽，海鲜或者含有这些食物的产品，
A vegetarian diet does include
素食者饮食包括
fruits, vegetables, bean, legumes, cereal grains, nuts and seeds, with or without dairy products and eggs.
水果，蔬菜，大豆，豆类，谷物，坚果和种子，包含或不包含奶制品和蛋
In addition to that basic definition there are other forms of a vegetarian diet.
除了这种最基本的定义，还有一些其他形式的素食者饮食，
A vegan diet excludes meat, dairy products, eggs and honey,
绝对素食者饮食不包括肉，奶制品，蛋和蜂蜜，
and is defined as the lack of all foods that contain animal products or by-products.
不含任何含有动物制品或者副产品的食物
A lacto-vegetarian diet excludes meat and eggs,
乳素食者饮食不包括肉和蛋
but includes dairy products and honey
但是包括奶制品和蜂蜜
while an ovo-vegetarian diet excludes meat and dairy products but includes eggs and honey.
而蛋素食者饮食不包括肉和奶制品，但是包括蛋和蜂蜜，
Any other variety of vegetarian diets such as semi-vegetarian
还有其他一些素食者饮食，像是半素食者
where a person may eat a diet consisting of mostly vegetarian choices
他们的饮食大多来自蔬菜，
and just a small amount of meat is not considered a true vegetarian diet.
只有少量的肉，这样的饮食不是真正的素食者饮食，
There are many reasons people may choose a vegetarian diet
人们选择素食者饮食有很多原因，
which could include ethical, health, environmental, religious, political, cultural, aesthetic, economic or other reasons.
包括伦理的，健康的，环境的，宗教的，政治的，文化的，美学的，经济的或者别的原因
We will take a more in depth look at the health reasons people may choose to follow a vegetarian diet next.
我们下面更深入地了解一下人们选择素食可能出于哪些健康上的原因
