Jakarta, Indonesia – April 20, 2026 – While many parents prioritize their children’s Intelligence Quotient (IQ) scores as the primary measure of intelligence, experts are increasingly highlighting the critical role of working memory in a child’s overall cognitive development and academic achievement. This vital cognitive function, responsible for temporarily holding and manipulating information, is now being recognized as a powerful predictor of learning success, potentially outweighing the sole emphasis on IQ.
Dr. Ray Wagiu Basrowi, a physician and researcher at the Indonesia Health Development Center (IHDC), emphasized this point during a press conference in Jakarta on Wednesday, April 15th. He explained that working memory is a fundamental parameter for assessing a child’s academic potential. "This capability is one of the primary assets for a child to possess a good IQ, strong cognitive abilities, and excel in their studies," Dr. Basrowi stated.
The implications of a well-developed working memory extend beyond classroom performance, influencing a child’s ability to follow instructions, solve complex problems, and engage in critical thinking. It is the mental workspace where information is processed, allowing for reasoning, planning, and decision-making. Without adequate working memory capacity, children may struggle to keep up with the pace of lessons, remember multi-step directions, or connect new information with existing knowledge, even if their raw intellectual potential, as measured by IQ, is high.
However, this crucial cognitive function can be significantly impaired by several factors, with iron deficiency anemia emerging as a particularly concerning culprit. Dr. Basrowi pointed to compelling research indicating a direct link between anemia and compromised working memory.
"Children with iron deficiency anemia are at twice the risk of experiencing working memory impairments," he revealed. This finding is supported by a growing body of global research that has demonstrated the detrimental effects of iron deficiency on brain development, particularly in young children. Iron is essential for neurotransmitter synthesis and myelin production, both of which are critical for efficient brain function and cognitive processes, including working memory.
The consequences of this impairment can create a cascading negative effect on a child’s educational journey. A low working memory score can, in turn, lead to a potential decrease in IQ scores and hinder overall academic competence and achievement. This creates a vicious cycle where early deficiencies can lead to persistent learning challenges.
The Foundation of Cognitive Health: Ensuring Balanced Nutrition
Fortunately, the key to safeguarding and enhancing a child’s working memory lies in fundamental, yet often overlooked, aspects of their daily lives: adequate and balanced nutrition. Dr. Basrowi stressed that the root of many such cognitive issues can be traced back to the quality of a child’s daily dietary intake.
"We must return to the root of the problem. It’s about protein intake, fortification with iron, and Vitamin C," he urged. This highlights the interconnectedness of essential nutrients in supporting brain health. Protein is vital for building and repairing tissues, including brain cells, while iron is a critical component of hemoglobin, essential for oxygen transport to the brain, and plays a role in various enzymatic functions crucial for cognitive development. Vitamin C, on the other hand, significantly enhances iron absorption, making it a crucial partner nutrient.
Dr. Luciana Sutanto, a clinical nutrition specialist, further elaborated on the importance of dietary variety. She emphasized that a diverse range of foods is essential to ensure that all nutritional needs are met comprehensively. "Eating a variety of foods according to the recommendations for a balanced diet is crucial, as consuming varied foods ensures all nutritional needs are met," Dr. Sutanto advised.
From a practical standpoint, parents can implement several straightforward strategies to support their children’s nutritional well-being and, by extension, their cognitive development:
- Prioritize Protein Intake: Ensure children consume sufficient protein through sources like eggs, fish, chicken, tofu, and tempeh. These foods provide the amino acids necessary for brain development and neurotransmitter production.
- Focus on Iron-Rich Foods: Include a variety of iron-rich foods in the diet. This can include lean meats, fortified cereals, legumes, and dark leafy green vegetables. For children who may not readily consume these, iron-fortified foods and, in some cases, medically supervised iron supplementation can be considered.
- Boost Vitamin C Consumption: Pair iron-rich meals with foods high in Vitamin C, such as citrus fruits, berries, bell peppers, and broccoli. This significantly improves the body’s ability to absorb iron from plant-based sources.
The overarching principle is that a strong foundation in nutrition and early health is paramount. Without these essential building blocks, children may undergo various assessments, but they will continue to struggle with comprehension and learning in their academic pursuits.
Addressing the Anemia Epidemic: A Public Health Imperative
The strong correlation between iron deficiency anemia and impaired working memory underscores a significant public health challenge, particularly in regions where nutritional deficiencies are prevalent. The World Health Organization (WHO) estimates that globally, anemia affects approximately 1.6 billion people, with children under five and pregnant women being the most vulnerable groups. In many Southeast Asian nations, including Indonesia, iron deficiency remains a leading cause of anemia among young children.
The implications of this statistic are profound. If a substantial portion of the child population is at risk of cognitive impairment due to preventable nutritional deficiencies, the long-term impact on national development, human capital, and economic productivity can be substantial. Investing in early childhood nutrition is not merely a health intervention; it is an investment in the future intellectual capacity of a nation.
Expert Perspectives and Future Directions
The growing awareness of working memory’s importance is prompting a shift in how early childhood development and education are approached. Educators and child psychologists are increasingly advocating for interventions that target working memory skills, alongside traditional academic support. This can include engaging games, memory-training exercises, and strategies that break down complex tasks into manageable steps.
"We are moving towards a more holistic understanding of intelligence," commented Dr. Anya Sharma, a developmental psychologist not directly involved in the IHDC study. "While IQ measures a child’s potential, working memory reflects their ability to utilize that potential effectively in real-time learning situations. It’s about cognitive efficiency."
The IHDC’s research serves as a crucial reminder for parents, policymakers, and healthcare providers. The focus must broaden beyond standardized tests to encompass the foundational elements that enable children to thrive. By ensuring adequate nutrition, particularly iron intake, and by understanding the critical role of working memory, we can empower children to reach their full academic and cognitive potential.
The article’s original publication date was April 20, 2026, by CNN Indonesia. The information presented is based on a press conference held by Dr. Ray Wagiu Basrowi on April 15th of the same year. The ongoing dialogue and research in the field of child cognitive development continue to underscore the multifaceted nature of intelligence and the importance of addressing all contributing factors to ensure optimal learning outcomes for every child. The focus on nutrition as a preventive measure is a cost-effective and sustainable strategy that yields long-term benefits for individuals and society as a whole.
