Introduction to Nutrition

Nutrients have one or more of three basic functions: they provide energy, contribute to body structure, and/or regulate chemical processes in the body. These basic functions allow us to detect and respond to environmental surroundings, move, excrete wastes, respire (breathe), grow, and reproduce. There are six classes of nutrients required for the body to function and maintain overall health.

Which are these classes? We will be glad to hear your response in the reply section.


Carbohydrates, Vitamins, fats, minerals and water


Very true @Koviao . Thank you for this great contribution.

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They are carbohydrates, proteins,Fat, vitamins, minerals and water


Of the six Classes of nutrition:

  1. Proteins
  2. Fats
  3. Carbohydrates
  4. energy
  5. Minerals.


thanks a lot regarding the topic
while we are talking about nutrition it’s better to understand and consider the following important point

Overnutrition is malnutrition caused by an excess of certain nutrients (such as saturated fats and added sugars) in combination with low levels of physical activity that may result in obesity, heart disease, and other circulatory disorders, diabetes, and similar diseases. Although most individuals suffering from overnutrition are food secure, they do not enjoy nutrition security.

Most malnourished individuals in developing countries are undernourished, but problems of overnutrition are also present and increasing.

Undernutrition :

Undernutrition is malnutrition caused by inadequate food intake or poor absorption or biological use of nutrients consumed because of illness, disease, or nutrient imbalance. In addition to an absolute deficit in food intake, undernutrition can result from imbalanced diets in which sufficient macronutrients are consumed (carbohydrates, fat, protein) but insufficient vitamins and minerals (in particular, the micronutrients iron, iodine, zinc, and Vitamin A), resulting in various physiological disorders and increased susceptibility to disease. Although most individuals suffering from undernutrition are food insecure, an individual or household can be food secure but undernourished. For example, an individual who is food secure but suffers from frequent and severe bouts of diarrhea cannot use the food for growth and development and is experiencing under-nutrition.

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Well-put @16042014. Thank you for your contribution.


Well-put @06159846331 . Thank you for your contribution.

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Hello, @Teweda . Thank you for your elaborate response. This is truly informative.

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To learn more about nutrients, we are happy to invite you to our Webinar today as we delve more into this topic (10 am - 12 pm EAT ). You can register via the following link.

Hi there,

You are invited to a Zoom webinar.
When: Jul 20, 2022 10:00 AM Nairobi
Topic: Introduction to Human Nutrition - Nutrients

Register in advance for this webinar:

After registering, you will receive a confirmation email containing information about joining the webinar.

Webinar Speakers

Annette Mambo (Nutritionist @Humanitarian Global Institute)


Grateful to be part of this great community!


Thank you for joining the forum. We are glad to have you here.