Stunted growth

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Stunted growth
Other namesStunting, nutritional stunting
Share of children who are stunted, 1, OWID.svg
World map in 2016: Share of children who are stunted
Specialty Pediatrics

Stunted growth, also known as stunting or linear growth failure, is defined as impaired growth and development manifested by low height-for-age. [1] It is a primary manifestation of malnutrition (or more precisely chronic under-nutrition) and recurrent infections, such as diarrhea and helminthiasis, in early childhood and even before birth, due to malnutrition during fetal development brought on by a malnourished mother. The definition of stunting according to the World Health Organization (WHO) is for the "height-for-age" value to be less than two standard deviations of the median of WHO Child Growth Standards. [2] Stunted growth is usually associated with poverty, unsanitary environmental conditions, maternal under-nutrition, frequent illness, and/or inappropriate feeding practice and care during early years of life.

Contents

Prevalence of stunting in children under 5 years by region (2020-2022) Prevalence Of Stunting In Children Under 5 Years By Region.svg
Prevalence of stunting in children under 5 years by region (2020-2022)

As of 2020, an estimated 149 million children under 5 years of age are stunted worldwide. [3] More than 85% of the world's stunted children live in Africa and Asia. [4] Once established, stunting and its effects typically become permanent. Stunted children may never regain the height lost as a result of stunting, and most children will never gain the corresponding body weight. One notable contribution to stunted growth is lack of sanitation, leading to public defecation, such as in India. [5]

Health effects

Stunted growth in children has the following public health impacts apart from the obvious impact of shorter stature of the person affected:

The impact of stunting on child development has been established in multiple studies. [7] If a child is stunted at age 2 they will have higher risk of poor cognitive and educational achievement in life, with subsequent socio-economic and inter-generational consequences. [8] [7] Multi-country studies have also suggested that stunting is associated with reductions in schooling, decreased economic productivity and poverty. [9] Stunted children also display higher risk of developing chronic non-communicable conditions such as diabetes and obesity as adults. [8] [9] If a stunted child undergoes substantial weight gain after age 2, there is a higher chance of becoming obese. This is believed to be caused by metabolic changes produced by chronic malnutrition, that can produce metabolic imbalances if the individual is exposed to excessive or poor quality diets as an adult. [8] [9] This can lead to higher risk of developing other related non-communicable diseases such as hypertension, coronary heart disease, metabolic syndrome and stroke. [8] [9] At societal level, stunted individuals do not fulfill their physical and cognitive developmental potential and will not be able to contribute maximally to society. Stunting can therefore limit economic development and productivity, and it has been estimated that it can affect a country's GDP up to 3%. [8] [7] [9]

Stunting is highly prevalent in low- and middle income countries (LMICs) and has severe consequences including increased risk of infections, [10] mortality [11] [12] and loss of human capital. [10] [13] The global prevalence of stunting decreased from 33% to 23% between 2000 and 2016. [14] Meanwhile, 37% of children in South Asia are stunted, and due to a large population size, the region bears about 40% of the global burden of stunting. [15]

Causes

The prevalence of child stunting generally increases as cities become smaller and moving away from urban centres while child wasting and overweight are lower and exhibit less evident trends across the rural-urbann continuum. The prevalence of child stunting generally increases as cities become smaller and moving away from urban centres; child wasting and overweight are lower and exhibit less evident trends across the rural-urbann continuum.svg
The prevalence of child stunting generally increases as cities become smaller and moving away from urban centres while child wasting and overweight are lower and exhibit less evident trends across the rural-urbann continuum.
Children living in unsanitary conditions in an urban slum in India, at risk of diarrhea and stunted growth Children in unsanitary conditions in slum in India (3150664558).jpg
Children living in unsanitary conditions in an urban slum in India, at risk of diarrhea and stunted growth
Child next to open sewer in slum in Kampala, Uganda, at risk of diarrhea and stunted growth Child in slum in Kampala (Uganda) next to open sewage (3110617133).jpg
Child next to open sewer in slum in Kampala, Uganda, at risk of diarrhea and stunted growth

In many publications, the causes for stunting are considered very similar if not the same as the causes for malnutrition in children. However, there are some that contradict this notion. Recent evidence stresses that stunting may not be taken as a synonym of malnutrition, [16] but as the natural condition of human height in non-Westernized societies. [17]

Almost all stunting occurs within the 1,000-day period that spans from conception to a child's second birthday, [18] [19] which constitutes a window of opportunity for growth promotion. [20] The recognition of pre-natal factors underlines the inter-generational aspects of growth, [21] and the need for early interventions.The three main causes of stunting in South Asia, and probably in most developing countries, are poor feeding practices, poor maternal nutrition, and poor sanitation. A recent risk assessment analysis for 137 developing countries found that the leading risk factors for stunting were fetal growth restriction (birth weight <10th centile) followed by unimproved sanitation and diarrhea. It was estimated that 22% of stunting cases were attributable to environmental factors while 14% were attributable to child nutrition. [22] In addition, looking at trends from 1970 to 2012 for 116 countries, women’s education, gender equality and finally quantity and quality of foods available at the country level have been instrumental in reducing stunting rates, while income growth and governance have played facilitating roles. [23]

Feeding practices

Inadequate complementary child feeding and a general lack of vital nutrients beside pure caloric intake is one cause for stunted growth. Children need to be fed diets which meet the minimum requirements in terms of frequency and diversity in order to prevent under-nutrition. [24] Exclusive breastfeeding is recommended for the first six months of life and complementary feeding of nutritious food alongside breastfeeding for children aged six months to 2-years-old. Prolonged exclusive breastfeeding is associated with under-nutrition because breast milk alone is nutritionally insufficient for children over six months old. [25] [26] Breastfeeding in long time with inadequate complementary feeding leads to growth failure due to insufficient nutrients which are essential for childhood development. The relationship between under-nutrition and prolonged duration of breastfeeding is mostly observed among children from poor households and whose parents are uneducated as they are more likely to continue breast-feeding without meeting minimum dietary diversity requirement. [27]

Maternal nutrition

Poor maternal nutrition during pregnancy and breastfeeding can lead to stunted growth of their children. Proper nutrition for mothers during the prenatal and postnatal period is important for ensuring healthy birth weight and for healthy childhood growth. Prenatal causes of child stunting are associated with maternal undernutrition. Low maternal BMI predisposes the fetus to poor growth leading to intrauterine growth retardation, which is strongly associated with low birth weight and size. [28] Women who are underweight or anemic during pregnancy, are more likely to have stunted children which perpetuates the inter-generational transmission of stunting. Children born with low birth-weight are more at risk of stunting. [24] However, the effect of prenatal under-nutrition can be addressed during the postnatal period through proper child feeding practices. [28]

Maternal under-nutrition increases the risk of stunting at 2 years age. [18] Based on data from 19 birth cohorts from LMICs, 20% of stunting is attributed to being born small-for-gestational-age (SGA). [29] Further, estimated stunting at 2 years attributed to fetal growth restriction and preterm birth in 2011 was 33% in all developing countries and 41% in South Asia. [22] Restricted pre- and postnatal growth are in turn important determinants of short adult height, [30] increasing the likelihood of the next generation also being stunted. [31]

Sanitation

There is most likely a link between children's linear growth and household sanitation practices. The ingestion of high quantities of fecal bacteria by young children through putting soiled fingers or household items in the mouth leads to intestinal infections. This affect children's nutritional status by diminishing appetite, reducing nutrient absorption, and increasing nutrient losses.The diseases recurrent diarrhea and intestinal worm infections (helminthiasis) which are both linked to poor sanitation have been shown to contribute to child stunting.[ citation needed ]

Research on a global level has found that the proportion of stunting that could be attributed to five or more episodes of diarrhea before two years of age was 25%. [32] Since diarrhea is closely linked with water, sanitation and hygiene (WASH), this is a good indicator for the connection between WASH and stunted growth. To what extent improvements in drinking water safety, toilet use and good handwashing practices contribute to reduce stunting depends on the how bad these practices were prior to interventions.

Environmental enteropathy

The condition termed environmental enteropathy is proposed as an immediate causal factor of childhood stunting. [33] [34] This is an asymptomatic small intestinal disorder characterized by chronic gut inflammation, reduced absorptive surface area, and disruption of intestinal barrier function. [35] [36] This small bowel disorder is attributable to sustained exposure to intestinal pathogens caused by fecal contamination of food and water. [37] [38] [34] Recent evidence confirmed a causal relationship between stunted growth and environmental enteropathy in children. [39] Several studies are also underway to examine the link between this condition and stunted growth. [37] [40] [41] The exact parthenogenesis of environmental enteropathy causing linear growth failure is unclear, but it is hypothesized that chronic inflammatory state and impaired absorption associated with this condition may inhibit bone growth and affect the linear growth during early years of life. [42]

Diagnosis

Growth stunting is identified by comparing measurements of children's heights to the World Health Organization 2006 growth reference population: children who fall below the fifth percentile of the reference population in height for age are defined as stunted, regardless of the reason. The lower than fifth percentile corresponds to less than two standard deviations of the WHO Child Growth Standards median.[ citation needed ]

As an indicator of nutritional status, comparisons of children's measurements with growth reference curves may be used differently for populations of children than for individual children. The fact that an individual child falls below the fifth percentile for height for age on a growth reference curve may reflect normal variation in growth within a population: the individual child may be short simply because both parents carried genes for shortness and not because of inadequate nutrition. However, if substantially more than 5% of an identified child population have height for age that is less than the fifth percentile on the reference curve, then the population is said to have a higher-than-expected prevalence of stunting, and malnutrition is generally the first cause considered.[ citation needed ]

Prevention

Three main things are needed to reduce stunting: [43]

To prevent stunting, it is not just a matter of providing better nutrition but also access to clean water, improved sanitation (hygienic toilets) and hand washing at critical times (summarized as "WASH"). Without provision of toilets, prevention of tropical intestinal diseases, which may affect almost all children in the developing world and lead to stunting will not be possible. [44]

Studies have looked at ranking the underlying determinants in terms of their potency in reducing child stunting and found in the order of potency: [23]

Three of these determinants should receive attention in particular: access to sanitation, and diversity of calorie sources from food supplies. A study by the Institute of Development Studies has stressed that: "The first two should be prioritized because they have strong impacts yet are farthest below their desired levels". [23]

The goal of UN agencies, governments and NGO is now to optimist nutrition during the first 1000 days of a child's life, from pregnancy to the child's second birthday, in order to reduce the prevalence of stunting. [45] The first 1000 days in a child's life are a crucial "window of opportunity" because the brain develops rapidly, laying the foundation for future cognitive and social ability. [46] Furthermore, it is also the time when young children are the most at risk of infections that lead to diarrhea. It is the time when they stop breast feeding (weaning process), begin to crawl, put things in their mouths and become exposed to fecal matter from open defecation and environmental enteropathies. [45]

Dietary interventions to improve stunting

Previous interventions to reduce stunting have shown modest effects. Multiple micro-nutrient supplementation shows only small benefits for linear growth [47] and results from studies supplementing lipid based nutrient supplements (LNS) to children are inconclusive. [48] [49] Educational interventions to improve complementary feeding may achieve behavioral change but have no or small effects on growth. [50] [51] Further, studies on the effect of micro-nutrient fortification, increased availability of key nutrients or increased energy density of complementary foods on stunting also show heterogeneous results. [52] It is estimated that education interventions, if optimally designed and implemented, could reduce stunting by 0.6 z-scores while food-based interventions could reduce stunting by 0.5 z-scores, [52] which is moderate compared to the average global growth deficit. [53] Finally, the Lancet-series on maternal and child nutrition estimated that the impact of all existing interventions designed to improve nutrition and prevent related diseases in mothers and children, could reduce stunting at 3 years by merely 36%. [54] Hence, factors explaining the shortfall in observed associations between child feeding practices and nutrient intake and linear growth, have increasingly been the focus of scientific interest. [55]

Recent works showed promise that intervention with egg may improve linear growth in children. [56] [57] Comprehensive intervention package containing eggs also found to be effective in improving linear growth in children. [58] However, the effect of egg intervention may not persist for longer period. [59] Therefore, intervention programs should consider egg intervention for a longer period with emphasis on overall diet quality and improvement of environmental conditions.[ citation needed ]

Pregnant and lactating mothers

Ensuring proper nutrition of pregnant and lactating mothers is essential. [7] Achieving so by helping women of reproductive age be in good nutritional status at conception is an excellent preventive measure. [7] A focus on the pre-conception period has recently been introduced as a complement to the key phase of the 1000 days of pregnancy and first two years of life. [7] An example of this are attempts to control anemia in women of reproductive age. [7] A well-nourished mother is the first step of stunting prevention, decreasing chances of the baby being born of low birth-weight, which is the first risk factor for future malnutrition. [7]

Balanced protein–energy supplementation in pregnancy seem to improve birth weight of children, with greater effects in undernourished women. [60] Meanwhile, micronutrient supplements and lipid based nutrient supplements (LNS) (providing both macro-and micronutrients) during pregnancy have shown mixed effects on birth weight and -length. [61] [62] Similarly, studies supplementing LNS to mothers during pregnancy and lactation and their children during the complementary feeding period show heterogeneous results for stunting. [63] [64]

After birth, in terms of interventions for the child, early initiation of breastfeeding, together with exclusive breastfeeding for the first 6 months, are pillars of stunting prevention. [7] Introducing proper complementary feeding after 6 months of age together with breastfeeding until age 2 is the next step. [7]

Policy interventions

In summary, key policy interventions for the prevention of stunting are:

Epidemiology

According to the World Health organisation if less than 20% of the population is affected by stunting, this is regarded as  "low prevalence" in terms of public health significance. [2] Values of 40% or more are regarded as very high prevalence, and values in between as medium to high prevalence. [2]

UNICEF has estimated that: "Globally, more than one quarter (26 per cent) of children under 5 years of age were stunted in 2011 – roughly 165 million children worldwide." [65] and "In sub-Saharan Africa, 40 per cent of children under 5 years of age are stunted; in South Asia, 39 per cent are stunted." [65] The four countries with the highest prevalence are Timor-Leste, Burundi, Niger and Madagascar where more than half of children under 5 years old are stunted. [65]

The 2020 edition of FAO's Near East and North Africa − Regional Overview of Food Security and Nutrition found that in 2019 22.5 percent of children under the age of five were stunted, 9.2 percent were wasted, and 9.9 percent were overweight across several Arab and North African countries. [66] [67]

As of 2015, it was estimated that there were 156 million stunted children under 5 in the world, 90% of them living in low and low-middle income countries. [68] 56% of these were in Asia, and 37% in Africa. [68] It is possible that some of these children concurrently had other forms of malnutrition, including wasting and stunting, and overweight and stunting. No statistics are currently available for these combined conditions. Stunting has been on the decline for the past 15 years, but this decline has been too slow. As a comparison, there were 255 million stunted children in 1990, 224 in 1995, 198 in 2000, 182 in 2005, 169 in 2010, and 156 in 2016. [68] However, the decline of stunting is geographically uneven, and is unequal among different groups in society. [68] A research paper published in January 2020, which mapped stunting, wasting and underweight in children in low- and middle-income countries, predicted that only five countries would meet global targets for reducing malnutrition by 2025 in all second administrative subdivisions. [4]

Over the period 2000–2015, Asia reduced its stunting prevalence from 38 to 24%, Africa from 38 to 32%, and Latin America and the Caribbean from 18 to 11%. [68] This equates to a relative reduction of 36, 17 and 39% respectively, indicating that Asia and Latin America and the Caribbean have displayed much larger improvements than Africa, which needs to address this issue with much more effort if it is to win the battle against a problem that has been crippling its development for decades. Of these regions, Latin America and the Caribbean are on track to achieve global targets set with global initiatives such as the United Nations Millennium Development Goals and the World Health Assembly targets (see following section on global targets). [68]

Sub-regional stunting rates are as follows: In Africa, the highest rates are observed in East Africa (37.5%). [68] All other Sub-Saharan sub-regions also have high rates, with 32.1% in West Africa, 31.2% in Central Africa, and 28.4% in Southern Africa. [68] North Africa is at 18%, and the Middle East at 16.2%. [68] In Asia, the highest rate is observed in South Asia at 34.4%. [68] South-East Asia is at 26.3%. Pacific Islands also display a high rate at 38.2%. Central and South America are respectively at 15.6 and 9.9%. [68] South Asia, given its very high population at over 1 billion and high prevalence rate of stunting, is the region currently hosting the highest absolute number of children with stunting [68] (60 million plus).

Looking at absolute numbers of children under 5 affected by stunting, it is obvious why current efforts and reductions are insufficient. The absolute number of stunted children has increased in Africa from 50.4 to 58.5 million in the time 2000–2015. [68] This is despite the reduction in percentage prevalence of stunting, and is due to the high rates of population growth. The data therefore indicate that the rate of reduction of stunting in Africa has not been able to counterbalance the increased number of growing children that fall into the trap of malnutrition, due to population growth in the region. This is also true in Oceania, unlike Asia and Latin America and the Caribbean where substantial absolute reductions in the number of stunted children have been observed [68] (for example, Asia reduced its number of stunted children from 133 million to 88 million between 2000 and 2015).

The reduction in stunting is closely linked to poverty reduction and the will and ability of governments to set up solid multisectoral approaches to reduce chronic malnutrition. Low income countries are the only group with more stunted children today than in the year 2000. [68] Conversely, all other countries (high-income, upper-middle income, lower-middle income) have achieved reductions in the numbers of stunted children. [68] This sadly perpetuates a vicious cycle of poverty and malnutrition, whereby malnourished children are not able to maximally contribute to economic development as adults, and poverty increases chances of malnutrition.

Research

The Water and Sanitation Program of the World Bank has investigated links between lack of sanitation and stunting in Vietnam and Lao PDR. [69] An example is in Vietnam where the lack of sanitation in rural villages in mountainous regions of Vietnam led to five-year-old children being 3.7 cm shorter than healthy children living in villages with good access to sanitation. [69] This difference in height is irreversible and matters a great deal for a child's cognitive development and future productive potential.[ citation needed ]

Review articles

The Lancet has published two comprehensive series on maternal and child nutrition, in 2008 [9] and 2013. [8] The series review the epidemiology of global malnutrition and analyze the state of the evidence for cost-effective interventions that should be scaled-up to achieve impact and global targets. In the first of such series, [9] investigators define the importance of the 1000 day and identify child malnutrition as being responsible for one third of all child deaths worldwide. This finding is key in that it points at malnutrition as a key determinant of child mortality that is often overlooked. When a child dies of pneumonia, malaria or diarrhea (some of the causes of child mortality in the world), it may well be that malnutrition is a key contributing factor that prevents the body from successfully fighting the infection and recovering from these diseases. [9]

In the follow-up series in 2013, [8] the focus on undernutrition is expanded to the increasing burden of obesity in both high, middle and low income countries. Several countries with high levels of child stunting and undernutrition are starting to display worrisome increasing trends of child obesity concurrently, due to increased wealth and the persistence of significant inequalities. [8] The challenges these countries face are particularly difficult as they require intervening on two levels on what has come to be called “double burden of malnutrition”. [8] As an example, in India 30% of children under 5 years of age are stunted, and 20% are overweight. Neglecting these nutritional problems is not an option anymore if countries are to escape poverty traps and provide opportunities to their people to live fulfilling productive lives without stunting. [8]

Nutritional interventions such as dietary supplementation and nutritional education have the potential to decrease stunting. [70]

Examples

The 2012 World Health Assembly, with its 194 member states, convened to discuss global issues of maternal, infant and young child nutrition, and developed a plan with 6 targets for 2025. [7] The first of such targets aims to reduce by 40% the number of children who are stunted in the world, by 2025. This would correspond to 100 million stunted children in 2025. At the current reduction rate, the predicted number in 2025 will be 127 million, indicating the need to scale-up and intensify efforts if the global community is to reach its goals. [7]

The World Bank estimates that the extra cost to achieve the reduction goal will be $8.50 yearly per stunted child, for a total of $49.6 Billion for the next decade. [71] Stunting has been shown to be one of the most cost-effective global health problems to invest in, with an estimated return on investment of $18 for every dollar spent thanks to its impact on economic productivity. [71] Despite the evidence in favor of investing in the reduction of stunting, current investments are too low at about $2.9 billion per year, with $1.6 billion coming from Governments, $0.2 billion from donors, and $1.1 paid by individuals. [71]

Sustainable Development Goals

In 2015, the United Nations and its member states agreed on a new sustainable development agenda to promote prosperity and reduce poverty, putting forward 17 Sustainable Development Goals (SDGs) to be achieved by 2030. [72] SDG 2 aims to “End hunger, achieve food security and improved nutrition, and promote sustainable agriculture”. Sub-goal 2.2. aims to “by 2030 end all forms of malnutrition, including achieving by 2025 the internationally agreed targets on stunting and wasting in children under five years of age, and address the nutritional needs of adolescent girls, pregnant and lactating women, and older persons”.

The global community has recognized more and more the critical importance of stunting during the past decade. Investments to address it have increased but remain far from being sufficient to solve it and unleash the human potential that remains trapped in malnutrition.

The "Scaling Up Nutrition Movement (SUN)" movement is the main network of governments, non-governmental and international organizations, donors, private companies and academic institutions working together in pursuit of improved global nutrition and a world without hunger and malnutrition. [73] It was launched at the UN General Assembly of 2010 and it calls for country-led multi-sectoral strategies to address child malnutrition by scaling-up evidence-based interventions in both nutrition specific and sensitive areas. As of 2016, 50 countries have joined the SUN Movement with strategies that are aligned with international frameworks of action. [73]

Brazil

Brazil displayed a remarkable reduction in the rates of child stunting under age 5, from 37% in 1974, to 7.1% in 2007. [7] This happened in association with impressive social and economic development that reduced the numbers of Brazilians living in extreme poverty (less than $1.25 per day) from 25.6% in 1990 to 4.8% in 2008. [7] The successful reduction in child malnutrition in Brazil can be attributed to strong political commitment that led to improvements in the water and sanitation system, increased female schooling, scale-up of quality maternal and child health services, increased economic power at family level (including successful cash transfer programs), and improvements in food security throughout the country. [7]

Bangladesh

Nearly one-third of the children under five years of age are stunted in Bangladesh and 9% are severely stunted. [74] The country is on track in reducing the prevalence of stunted growth. If the current trend continues, the prevalence would be 21% in 2025, while the target is 27%. [75] Maternal undernutrition and increased pathogen load in the intestine are the major risk factors of stunting in Bangladeshi children. [76] Daily supplementation with egg, cow milk, and micronutrient powder found to be effective in improving linear growth of children in a community-based trial in Bangladesh. [57]

Peru

After a decade (1995–2005) in which stunting rates stagnated in the country, Peru designed and implemented a national strategy against child malnutrition called crecer ("grow"), which complemented a social development conditional cash-transfer program called juntos, which included a nutritional component. [7] The strategy was multisectoral in that it involved the health, education, water, sanitation and hygiene, agriculture and housing sectors and stakeholders. [7] It was led by the Government and the Prime Minister himself, and included non-governmental partners at both central, regional and community level. After the strategy was implemented, stunting went from 22.9% to 17.9% (2005–2010), with very significant improvements in rural areas where it had been more difficult to reduce stunting rates in the past. [7]

India (Maharashtra)

The State of Maharashtra in Central-Western India has been able to produce an impressive reduction in stunting rates in children under 2 years of age from 44% to 22.8% in the 2005–2012 period. [7] This is particularly remarkable given the immense challenges India has faced to address malnutrition, and that the country hosts almost half of all stunted children under 5 in the world. [7] [38] This was achieved through integrated community-based programs that were designed by a central advisory body that promoted multisectoral collaboration, provided advice to policy-makers on evidence-based solutions, and advocated for the key role of the 1000 days (pregnancy and first two years of life). [7]

Nepal

In Nepal, short maternal stature, [77] low maternal education, [78] [79] poor access to health services [79] and poverty [77] [78] are strong determinants for stunting. However, in Nepal, stunting has decreased from 57% in 2001 to 36% in 2016, with lower prevalence in urban than in rural settings. [80]

Philippines

In the Philippines, one in three children below five years old is stunted. [81] Even though the country's economic growth has steadily increased by 4% annually, almost a third of Filipino children have stunted growth. The prevalence of stunting declined during the early 2000s but has remained the same since then, with the 2019 rate (28.8 percent) only marginally lower than that of 2008. [82] Researchers attribute the problem to micro-nutrient deficiencies brought on by poverty, maternal under-education, food insecurity, and poor environmental conditions. [83] To address stunting and other health and food security issues, the Philippine Plan of Action for Nutrition (PPAN) was established as an umbrella initiative to meet health and nutrition targets in the country by 2028. [84] Since 2015, there has been a decline in stunting across all age groups, from infants to teenagers, with the most significant improvement observed among 5 to 10-year-olds, dropping from 31.2 percent in 2015 to 19.7 percent in 2021. [85]

See also

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Malnutrition continues to be a problem in the Republic of South Africa, although it is not as common as in other countries of Sub-Saharan Africa.

<span class="mw-page-title-main">Maternal and child health in Tanzania</span>

Both maternal and child health are interdependent and substantially contributing to high burden of mortality worldwide. Every year, 289 000 women die due to complications in pregnancy and childbirth, and 6.6 million children below 5 years of age die of complications in the newborn period and of common childhood diseases. Sub-Saharan Africa (SSA), which includes Tanzania, contribute higher proportion of maternal and child mortality. Due to considerable proportion of mortality being attributed by maternal and child health, the United Nations together with other international agencies incorporated the two into Millennium Development Goals (MDGs) 4 and 5. In this regard, Tanzania through the Ministry of Health and Social Welfare (MoHSW) adopted different strategies and efforts to promote safe motherhood and improve child survival. Similarly, in an effort to improve maternal and child health, Tanzania's government has declared maternal and child health services to be exempt from user fees in government facilities.

Malnutrition is a condition that affects bodily capacities of an individual, including growth, pregnancy, lactation, resistance to illness, and cognitive and physical development. Malnutrition is commonly used in reference to undernourishment, or a condition in which an individual's diet does not include sufficient calories and proteins to sustain physiological needs, but it also includes overnourishment, or the consumption of excess calories.

<span class="mw-page-title-main">Environmental enteropathy</span> Disorder of chronic intestinal inflammation

Environmental enteropathy is an acquired small intestinal disorder characterized by gut inflammation, reduced absorptive surface area in small intestine, and disruption of intestinal barrier function. EE is most common amongst children living in low-resource settings. Acute symptoms are typically minimal or absent. EE can lead to malnutrition, anemia, stunted growth, impaired brain development, and impaired response to oral vaccinations.

<span class="mw-page-title-main">Undernutrition in children</span> Medical condition affecting children

Undernutrition in children, occurs when children do not consume enough calories, protein, or micronutrients to maintain good health. It is common globally and may result in both short and long term irreversible adverse health outcomes. Undernutrition is sometimes used synonymously with malnutrition, however, malnutrition could mean both undernutrition or overnutrition. The World Health Organization (WHO) estimates that malnutrition accounts for 54 percent of child mortality worldwide, which is about 1 million children. Another estimate, also by WHO, states that childhood underweight is the cause for about 35% of all deaths of children under the age of five worldwide.

<span class="mw-page-title-main">Child health and nutrition in Africa</span>

Child health and nutrition in Africa is concerned with the health care of children through adolescents in the various countries of Africa. The right to health and a nutritious and sufficient diet are internationally recognized human rights that are protected by international treaties. Millennium Development Goals (MDGs) 1, 4, 5 and 6 highlight, respectively, how poverty, hunger, child mortality, maternal health, the eradication of HIV/AIDS, malaria, tuberculosis and other diseases are of particular significance in the context of child health.

The first 1,000 days describes the period from conception to 24 months of age in child development. This is considered a "critical period" in which sufficient nutrition and environmental factors have life-long effects on a child's overall health. While adequate nutrition can be exceptionally beneficial during this critical period, inadequate nutrition may also be detrimental to the child. This is because children establish many of their lifetime epigenetic characteristics in their first 1,000 days. Medical and public health interventions early on in child development during the first 1,000 days may have higher rates of success compared to those achieved outside of this period.

References

Creative Commons by-sa small.svg  This article incorporates text by Marianne Sandsmark Morseth available under the CC BY-SA 3.0 license.

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