Childhood obesity around the world
Childhood obesity is a significant phenomenon occuring worldwide. The number of overweight or obese infants and young children between 0-5 years old increased from 32 million in 1990 to 41 million in 2016. Childhood obesity is associated with serious health complications and premature onset of illnesses. The rising numbers of overweight/obese population is related to the escalating incidence of non-communicable diseases such as diabetes, hypertension and cardiovascular diseases, among others.
Obesity in Malaysia has reached epidemic proportions. The prevalence of obesity among Malaysian children below 18 years old was reported at nearly 12%.Malaysia is the most obese country in Southeast Asia, with 30.0% of the population being overweight and 17.7% being obese. The high prevalence of obesity and its associating comorbidities is detrimental to health and economy, both for the individual and the society as a whole.
|Category||Body mass index range (kg/m2)|
|Obese III||≥ 40.00|
Adapted from Academy of Medicine Malaysia. Clinical Practice Guidelines On Management of Obesity. 2003.
Body mass index (BMI) is a measure of body fat based on weight and height. BMI is calculated by dividing body weight in kilogrammes by height in metres twice. For example, a person of 60 kg weight and 1.7 m height would have a BMI of 20.76 kg/m2 (60 / 1.7 / 1.7 = 20.76).
Diseases and complications associated with childhood obesity
Obesity in childhood is a major health risk. Obese children today are developing health issues previously observed only in adults. Problems associated with childhood obesity range widely from acute complications (e.g. type 2 diabetes, hypertension, hyperlipidaemia), cardiovascular and endocrine complications (e.g. insulin resistance, hypercholesterolaemia, coronary artery disease, polycystic ovary syndrome), certain cancers (e.g. colorectal, endometrial, breast, colon) and long-term issues (ischaemic heart disease, stroke, sudden death).
In addition to health problems, childhood obesity may also lead to psychological problems such as depression, eating disorders, and social isolation.Obese children may be bullied more compared to their normal-weighted peers, and develop poor self-esteem.These effects can last well into adulthood.
Impact of early nutrition on long-term health
Exposure to excessive nourishment and rapid weight gain in early childhood is closely related to the development of obesity and its associated disorders.
One study has defined three hypotheses on the possible path of development of obesity:
Thus, a World Health Organization report, “Ending Childhood Obesity”, addresses opportunities for effective prevention of obesity and its associated diseases at different stages, i.e. at pre-pregnancy and during pregnancy, in infancy, and early childhood, reflecting the three hypotheses described above.
Maintaining a healthy weight throughout childhood is better than attempting to reverse obesity. Many obese children eventually grow into obese adults; therefore early prevention is key.Here, parents play an important role in observing their children’s caloric intake and encouraging daily physical activity through exercise and play. Children should consume calories appropriate to their needs for normal growth and level of physical activity.
Nowadays, the selection of low-nutrient, energy-dense foods are endless, and these are often available for cheap. Parents must instill a healthy eating habit in children from the start, so that children may consciously make healthier food choices.
Parents and caregivers should teach children to eat well by encouraging good eating habits:
Parents with normal weight are more likely to have children within the normal weight range as well, and vice versa. Children tend to imitate adults, so parents should keep in mind to set a good example for their children.
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