Childhood obesity: warning signs

Childhood obesity is one of the leading health problems worldwide. Its prevalence has risen markedly in recent decades and, beyond its immediate impact, it can significantly shape children’s health in adulthood. Spotting the warning signs quickly is essential in order to address potential problems in children in good time.

The scale of the childhood obesity problem

According to figures from the World Health Organization (WHO), the number of children and adolescents with obesity has multiplied very significantly across the world in recent decades. This trend is of particular concern to healthcare professionals, as childhood obesity is associated with a greater risk of developing type 2 diabetes, high blood pressure and other chronic diseases at ever earlier ages.

Main causes of childhood obesity

Childhood obesity is a multifactorial condition, involving both genetic and environmental factors. Among the most significant causes are:

• Poor eating habits, with a high intake of ultra-processed foods, sugars and low-quality fats.
• A sedentary lifestyle and reduced time spent on physical activity.
• Increased screen time (television, video games, mobile devices).
• Genetic factors and a family history of obesity.
• Inadequate or insufficient sleep patterns.
• Socioeconomic and environmental factors that make access to a healthy diet more difficult.

Warning signs that parents should watch for

Identifying possible warning signs early makes it possible to act before the problem worsens. Some signs that may indicate the need for a medical assessment include:

• Weight gain significantly greater than expected for the child’s age and height.
• Breathing difficulties or excessive tiredness during their usual physical activity.
• The appearance of stretch marks or skin changes, such as areas of dark discolouration on the neck.
• Changes in mood, low self-esteem or social withdrawal related to weight.
• A family history of obesity, type 2 diabetes or cardiovascular disease.

If any of these signs are present, it is advisable to see a healthcare professional for a full assessment, rather than resorting to restrictive diets on your own, which can be counterproductive in childhood.

Consequences of untreated childhood obesity

When childhood obesity is not addressed properly, it can lead to complications in both the short and long term. These include metabolic disturbances such as insulin resistance, respiratory problems such as sleep apnoea, musculoskeletal disorders and, in many cases, a significant impact on the child’s emotional and social wellbeing. Moreover, the scientific evidence shows that obesity in childhood considerably increases the risk of carrying this condition into adulthood, along with its associated complications.

How to address childhood obesity

The treatment of childhood obesity should always be individualised and multidisciplinary, involving paediatricians, specialists in internal medicine or endocrinology, dietitians and, where necessary, mental health professionals. The goal should not focus solely on weight loss, but on developing healthy lifestyle habits that can be maintained over the long term: a balanced diet, regular physical activity appropriate to the child’s age, and a family environment that supports these changes.

At Dr Christian Leyva’s practice, a comprehensive assessment is offered that takes into account both the clinical aspects and the patient’s family and social context — essential for successfully addressing this chronic disease from an early age.

It is important to avoid an approach to childhood obesity that focuses exclusively on physical appearance or on weight loss as an isolated goal. A health-focused approach, prioritising the development of sustainable habits and the child’s emotional wellbeing, tends to deliver better long-term results than interventions centred solely on the scales, while also reducing the risk of unhealthy relationships developing with food or with body image during childhood and adolescence.

The role of the family is decisive in the success of any intervention. Changes in habits introduced at home — such as cooking at home more often, reducing the availability of ultra-processed products, encouraging physical activities as a family and establishing proper sleep routines — have a far greater impact when applied jointly for every member of the household, so that the child does not feel singled out or different from the rest.

If you have any concerns about your child’s weight or development, don’t wait for complications to appear. An early medical assessment can make a real difference to their future health.