As a result, wasting is often compounded by conditions of poor nutrition, feeding practices as well as inadequate sanitary conditions. The factors which contribute to this weight loss are associated with measures related to both diet and nutrition, and infection. A child is classified as wasted if his or her weight-for-height is more than two standard deviations below the median for the international reference population ages 0-59 months. Wasting is defined as being dangerously thin for oneвЂ™s height, and is generally a sign (especially in children) of rapid weight loss. The year of the latest published estimates vary by country so you may have to use the time scrollbar to find the most up-to-date figure for a given country. Note that many countries report stunting prevalence through periodic health and demographic surveys, meaning that this data is often not available on an annual basis.

The global map of the prevalence of childhood stunting is shown as the share of the under-5 population who are defined as stunted. Stunting can be caused by a range of compounding factors including nutritional intake of the child, as well as the mother during pregnancy, the recurrence of infectious diseases and infections from poor hygiene practices. It can have severe impacts on both cognitive and physical development throughout an individualвЂ™s life. Unlike wasting and low weight-for-age, the impacts of stunting on child development are considered to be largely irreversible beyond the first 1000 days of a childвЂ™s life. Stunting is an indicator of severe malnutrition. You can view trends of any country over time by selecting it from the map.Д¬hildren who are stunted are determined as having a height which falls below the median height-for-age of the World Health OrganizationвЂ™s Child Growth Standards. The country with the highest deficit was Haiti, at 530 kilocalories per person per day. A small selection of countries had a deficit ranging from 300-500, most in Sub-Saharan Africa. In 2016, we see that the majority of developing countries have a food deficit below 200 kilocalories per person per day. We have mapped the depth of the food deficit based on FAO data from 1992 onwards.

The average intensity of the food deficit is measured in kilocalories per person per day. This is calculated by measuring the difference between the average energy requirement and average caloric consumption of the undernourished population, multiplying this food deficit by the number of undernourished individuals (to give a value of the total caloric deficit of the country), and then dividing by the total population. This measure provides an estimate of the number of calories the average individual would need in order to balance their caloric intake with energy requirements. To provide an estimate of the intensity of undernourishment in a population, the FAO used a metric called the вЂdepth of the food deficitвЂ™. However, this measure does not give an indication of the average severity of undernourished it tells us how many lie below the minimum energy requirements, but not how far they lie below this line. The prevalence of undernourishment provides the core indicator of hunger with FAO metrics.

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