nutritious 意思是有营养的；指事物或食物的用途，给人带来营养；

   nutritional 意思是营养的；指事物的性质，即有关营养方面的知识或有关营养学方面的知识。

    eg. 1.  The apple is nutrious. 

          2.  Mr. Li is studying the nutritional knowledge.

1.    nutritious  /nju:trIS·s% AM nu:-/  a. 有营养成分的，有营养的 
 Nutritious food contains substances which help your body to be healthy. 
 Eg: It is always important to choose enjoyable, nutritious foods... 
     Some ready made meals are nutritious and very easy to prepare. 

2.nutritional  /nju:trIS·n·l% AM nu:-/   ADJ  usu ADJ n 营养的，滋养的。 
     The nutritional content of food is all the substances that are in it which help you to   remain healthy. 
      Eg:  It does sometimes help to know the nutritional content of foods... 
          Cooking vegetables reduces their nutritional value. 
      

nutritious  例句

1. It is always important to choose enjoyable, nutritious foods. 

选择好吃的、营养价值高的食物总是很重要。

2. Some ready made meals are nutritious and very easy to prepare. 

一些预制膳食很有营养，而且烹调起来很简单。

3. To help provide essential nourishment, we've put together these nutritious drinks. 

为了帮助提供必要的营养，我们调配了这些营养饮料。

4. Oats provide good, nutritious food for horses. 

燕麦是营养丰富的优质马饲料。

5. tasty and nutritious meals 

既可口又有营养的饭菜

nutritional  例句

1. It does sometimes help to know the nutritional content of foods. 

知道食物所含的营养成分有时的确有帮助。

2. When you sprout seeds their nutritional content increases. 

让种子发芽后，其营养含量会提高。

3. A diet lacking in nutritional value will not keep a person healthy. 

缺乏营养价值的饮食不能维持人的健康.

4. The labels on food products give a lot of information about their nutritional content. 

食品上的标签提供很多关于营养成分的信息.

5. As a result , the nutritional status of the children is good overall. 

在院儿童的营养状况普遍良好.