The Importance of Portion Control

Obviously, most have more calories. But they also encourage people to eat more than other people and underestimate the amount of food they actually consume.

I just agreed to write a Q & A column for the New York University student newspaper "Washington Square News" (WSN) which is a nutritionist notebook. Columns are displayed on Tuesday. First was published on February 22

This week, WSN welcomes columnist Marion Nestle. As Professor Paulette Goddard of the Department of Nutrition, Food Research and Public Health at New York University, Nestlé also co-authored a recently published book "Why Calories are Important: From Science to Politics". Every week she answers questions about nutrition, health and food.

What is the importance of size in this section? What is the best way to judge when you go out?

it's simple. Most of them you can eat more. If I can teach something about nutrition, that is the case: the larger part has more calories. Funny? Part of the size is not that obvious. Studies repeatedly confirmed that larger foods can not only provide more calories but also produce two other effects. They encourage people to eat less and less as they eat.

A few years ago, I asked Lisa Young, an introductory course for our department of nutrition, to estimate the number of calories in 8 ounces of coca cola and 64 ounces of double gulp. She did not expect novices to know the exact number, but they wanted them to do mathematics. To my surprise, the average multiplier was found to be 3, not 8. why? Students say it is impossible to drink 800 calories. No, not because the menu label was displayed

How to cope with weight problem? Please use small dishes and cups in the restaurant. When going out for meals, you can order appetizers instead of the main course. Or order small size or share most with friends

The system is stacked in front of you, and it is up to you to decide how to deal with it. For example, small sizes are usually relatively expensive

For a long time, I hope the restaurant owner can lower the price of the smaller part. I have no luck. They said that it would make them bankrupt. We need to make people easier to pick smaller parts. That means a change in public policy.

I would like to hear your opinion on this article. Please send a letter to the editor or write it on letters @ theatlantic.com.

Calorie calculation is troublesome. Nobody wants this - why are they doing this? It is another term - abuse but truly important - often abandoned: partial domination. As we have many parts in the country, this word worked well. Particularly, some restaurants are often far more than one-time consumption. I am watching you, Cheesecake Factory. Cooking should not contain more calories than the recommended amount of the day! Americans are used to too many parts and they may take 4-5 times the standard part at home. Think about many ziti. A reasonable serving size - about 1 to 1 1/2 cup - should be eaten with a green salad. Many people gather 4 to 6 cups, or about 4 times the reasonable part. The same is true for packaged foods. All nutrition information groups need a service scale to help guide consumers on how to implement partial management

Partial management is an important part of health. Knowing the normal or recommended amount of various foods is a good developmental habit and will help you better understand your body's hunger and fullness. For some people, the control part is not a challenge, but others need more support to make sure they are not excessive or insufficient to fuel your body. When you want to know the intake of a specific food, the scale of the service is very important. For example, the amount of yogurt is 1 cup, the amount of yogurt is 2 tbsp. If you do not know anything about the nutrients of these products, you can see that the amount of yogurt is more than that of sour cream. When viewing the nutrition label, all information is based on the size of the serving. For example, in the following nutrition label example, the size of a serving is 2/3 cups.