How is the Global Hunger Index (GHI) calculated?

The Global Hunger Index (GHI) is calculated by considering four key indicators related to hunger and malnutrition. These indicators include:

1. Undernourishment: This indicator measures the proportion of the population that does not receive enough calories to meet their daily energy requirements. It is calculated by estimating the percentage of the population with insufficient food intake.

2. Child Wasting: This indicator reflects acute malnutrition among children under the age of five. It measures the percentage of children who have low weight for their height, indicating recent weight loss or failure to gain weight.

3. Child Stunting: This indicator represents chronic malnutrition among children under the age of five. It measures the percentage of children who have low height for their age, indicating long-term inadequate nutrition and impaired growth.

4. Child Mortality: This indicator reflects child mortality rates, specifically the mortality rate of children under the age of five. It is an important indicator as malnutrition is a significant contributor to child mortality.

Each of these indicators is given a score based on their severity, and then these scores are combined to calculate the overall GHI score. The GHI score ranges from 0 to 100, with higher scores indicating higher levels of hunger and malnutrition. The GHI is updated annually to track changes in hunger levels globally and across countries.