Starvation

Summary: Some people do not eat enough food. In extreme cases, this is called starvation. If the energy in the food you eat is less than the energy you use, you will lose body mass and become underweight. Underweight people: - often suffer from health problems, such as a weak immune system - do not have energy to do things, and are often tired - are likely to suffer from a lack of vitamins or minerals. Tags: science student-book-7 biology Created: 2026-05-21 Last Updated: 2026-05-21

Starvation

Some people do not eat enough food. In extreme cases, this is called starvation. If the energy in the food you eat is less than the energy you use, you will lose body mass and become underweight. Underweight people: - often suffer from health problems, such as a weak immune system - do not have energy to do things, and are often tired - are likely to suffer from a lack of vitamins or minerals.

Source

This concept is from the [Science Student Book 7](Science Student Book 7/Biology/Health and Lifestyle/3.4 Unhealthy diet.md), Biology section.