Why do some scientists say to eat a certain amount of the food pyramid item each a day?

Check this site.

http://www.mypyramid.gov/

this does not help

These are the reasons recommend that we eat certain amounts of food from the food pyramid:

Make smart choices from every food group.
Find your balance between food and physical activity.
Get the most nutrition out of your calories.
Stay within your daily calorie needs.

but whats there reasoning behind it

uh...how about to stay healthy by getting the right nutrients?

"Nutrition is an input to and foundation for health and development. Interaction of infection and malnutrition is well-documented. Better nutrition means stronger immune systems, less illness and better health. Healthy children learn better. Healthy people are stronger, are more productive"

http://www.who.int/nutrition/en/

thank you

You're welcome.

Some scientists recommend consuming a certain amount of each food pyramid item every day because it promotes a balanced and nutritious diet. The food pyramid is a visual representation of the different food groups and the recommended servings of each group to maintain good health.

To determine the recommended amount of food pyramid items to consume, scientists and nutrition experts analyze various factors such as nutrient content, health benefits, and potential risks associated with each category of food. They consider the necessary vitamins, minerals, carbohydrates, proteins, and fats that our bodies need to function properly.

The recommendation to eat a certain amount of each food pyramid item serves several purposes:

1. Nutrient Diversity: Different food groups provide different essential nutrients. By consuming a variety of fruits, vegetables, grains, dairy products, and protein sources, we increase our chances of getting a wide range of vitamins, minerals, and other important substances necessary for optimal health.

2. Balanced Diet: The food pyramid aims to guide individuals towards a balanced diet that includes a mix of carbohydrates, proteins, and fats in appropriate proportions. This helps to ensure that our bodies receive an adequate supply of energy and essential nutrients for daily activities.

3. Health Benefits: Consuming the recommended portions of each food group has been associated with numerous health benefits. For example, fruits and vegetables are rich in vitamins, minerals, and fiber, which can reduce the risk of chronic diseases. Whole grains provide essential nutrients and fiber, while protein sources support muscle development and repair.

To determine the specific serving sizes for each food group, scientists conduct extensive research and consider factors such as age, gender, physical activity level, and overall health. These recommendations are used as general guidelines, and individual dietary needs may vary.

To find out the recommended portion sizes for each food group, you can refer to reputable sources such as governmental health agencies, registered nutritionists or dietitians, and reliable scientific studies. These sources often provide detailed information on serving sizes and offer personalized guidance based on age, sex, and activity level.