Urban Children: Calorie Excess, Micronutrient Deficiency – The Concern of 'Hidden Hunger' and Solutions

At the 7th Vietnam Community Nutrition Day event, held at Thong Nhat Park (Hanoi) in late June 2026, hundreds of parents gathered to seek health advice for their children. Leading nutrition experts sounded an alarm regarding a concerning paradox: children in major urban areas are outwardly obese but suffer from hidden malnutrition due to severe micronutrient deficiencies. Many parents expressed surprise when doctors could identify clear signs of nutrient deficiency in their children through simple observation and clinical examination. A typical example was a 5-year-old boy from Hanoi, weighing 26 kg – exceeding the standard for obesity grade 1. Despite this, he had thin, curly hair with an occipital alopecia, brittle nails with faint ridges, and pale palms. Through consultation, doctors discovered that the boy frequently consumed fried meat but consistently refused green vegetables and had a habit of drinking carbonated soft drinks instead of water.

The sight of hundreds of parents patiently queuing for consultations at the Vietnam Community Nutrition Day in late June 2026 partly reflected society's significant concern for children's nutritional health.

This alarming situation primarily stems from the modern generation's preference for convenient eating habits and sedentary lifestyles.

Many parents are concerned to observe that while their children's weight exceeds standards, and they may even appear chubby, micronutrient tests reveal severe deficiencies in essential substances like iron, zinc, and calcium. Experts from the National Institute of Nutrition clarified this as "hidden hunger" – a medical term describing a condition where the body lacks vital vitamins and minerals, despite daily calorie intake being consistently excessive.

The root cause of this issue lies in the alarmingly imbalanced dietary structure of urban children. Children are often indulged with calorie-dense, nutrient-poor fast foods such as fried chicken, french fries, various snacks, and notably, carbonated soft drinks. These foods are laden with saturated fats and refined sugars, leading to rapid weight gain but are severely deficient in the natural micronutrients vital for comprehensive development.

Notably, the habit of children consuming carbonated soft drinks during or immediately after meals inadvertently creates a significant barrier to nutrient absorption. The phosphate radicals and high sugar content in carbonated drinks not only damage the small intestinal lining but also markedly reduce the efficiency of zinc and iron absorption, while stimulating calcium excretion through urine. Consequently, even when children are provided with seemingly expensive and complete meals, their bodies still suffer from qualitative underdevelopment, leading to chronic fatigue, reduced alertness, and a weakened immune system.

To ensure optimal nutrition, children's meal trays should be balanced with whole grains, a variety of colorful green vegetables, and high-quality lean protein sources such as chicken breast, fish, and eggs, rather than relying on processed industrial canned meats.

To address the dual burden of obesity and hidden malnutrition, consulting doctors recommend that parents implement resolute measures to reduce empty calories and restructure children's meals according to three core principles:
1. **Prioritize Whole Foods:** Completely replace processed foods with fresh, natural daily ingredients. Children's meal trays should be diversified with whole grains, colorful green vegetables, and lean protein sources from chicken breast, fish, and eggs, while minimizing industrial canned meats.
2. **Strictly Control Hidden Sugars:** Ensure that the total sugar intake from snacks does not exceed 10g per serving to prevent excess fat accumulation and maintain stable blood sugar levels.
3. **Encourage Physical Activity for Metabolic Activation:** A healthy diet must always be coupled with physical activity. Active play and sports for at least 30 minutes daily under sunlight not only help burn excess energy but also stimulate the digestive system to produce natural enzymes, thereby improving micronutrient absorption, with the aim of achieving an average height of 170.4 cm in adulthood.

Parallel to nutritional and physical activity measures, building family models based on comprehensive criteria also plays a crucial role. The campaign "Building a Family of 5 Nots, 3 Cleans," with the addition of "3 Safeties" criteria, is expected to create an additional strong "shield" from the family environment, contributing to protecting children from various risks in modern society.