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Sweet But Not So Innocent: How Processed Sugar Impacts Our Brain Health

Author: Sandhya Basu


Imagine Priya, a dedicated mother in Mumbai, preparing sweetened chai and biscuits for her children before school. While this morning ritual brings warmth to their day, she often wonders about the long-term effects of their sugar consumption on their learning and health.



Across various cultures, excessive sugar consumption has been associated with cognitive deficits and even addictive behaviors​​​​. Health guidelines globally recommend limiting added sugars, yet many people, often consume much more, influenced by local dietary habits and the availability of sugary treats​​.  

For instance, in India, sweets are distributed at every happy or auspicious occasions. Guests in South-East Asian countries are welcomed by a variety of sugar-processed food and drink items like sharbat. In some cultures, consuming curd with sugar is considered auspicious before a new beginning in social or professional spheres of life. 

Research in both Western and Eastern settings indicates that diets rich in sugar could predispose individuals to mental health challenges like depression and anxiety​​. These effects are also attributed to sugar’s inflammatory impact on brain function, which could impair learning and memory retention​​.

For example, the brain relies on glucose as its primary source of energy, but too much glucose can lead to imbalances that affect cognitive processes such as learning and memory retention. Studies have shown that high-sugar diets can affect the brain's hippocampal region, where memory consolidation occurs, leading to decreased memory capabilities. 

Also, the impact of consuming sugar on neurotransmitters like dopamine (essential for mood regulation, learning, and memory) can lead to significant behavioral and cognitive impairments​​. Serotonin is often called the "feel-good" neurotransmitter, and its balance is crucial for maintaining mood stability. Diets high in sugar can disrupt this balance, potentially leading to feelings of depression.

There is also evidence that high sugar intake can worsen the body’s response to stress. Consuming a lot of sugar can amplify the hypothalamic-pituitary-adrenal (HPA) axis's response to stress, which may increase vulnerability to stress-related disorders like anxiety. This heightened stress response can also impact the brain's ability to cope with stress, further contributing to various mental health challenges.

Sugar is often blamed for causing hyperactivity in children, especially those with Attention Deficit Hyperactivity Disorder (ADHD). Mental health professionals and doctors suggest that while sugar itself may not cause ADHD, it can increase symptoms in some children, leading to more pronounced hyperactivity and attention issues​​. This can be particularly noticeable in classroom settings, where dietary impacts on behavior are often observed by educators and peers.



 However, it's not all doom and gloom!

The global conversation about the impacts of sugar on health is becoming more prominent, reflecting a broader awareness and pursuit of healthier lifestyles. This dialogue is not just a trend in Western countries but is gaining momentum worldwide, including in India, where there is a noticeable shift towards embracing both modern nutritional science and traditional dietary practices.

In India, traditional practices such as Ayurveda have long preached the virtues of a balanced diet, which minimizes the intake of processed sugars. Ayurveda, a holistic approach to health that originated thousands of years ago, emphasizes eating foods that are natural and seasonally appropriate, which naturally reduces the consumption of processed sugars. Today, as the adverse effects of modern dietary habits are evident, there’s a renewed interest in these ancient practices. Ayurvedic principles are being revisited not only for their health benefits but also as a cultural preservation against the influx of Western fast food and convenience diets.

Adopting a mindful approach to sugar consumption is about more than just reducing intake; it's about developing a sustainable and respectful relationship with food. This approach isn't just about counting grams of sugar but understanding the sources of food, the process of its preparation, and its nutritional content. It's about making choices that are conscious of one’s health needs while respecting and incorporating cultural dietary traditions.

Let’s revisit Priya, the dedicated mother in Mumbai, who lovingly prepares sweetened chai and biscuits for her children each morning. As she becomes more mindful about sugar, she begins to explore alternative practices that maintain the ritual’s comfort while promoting healthier choices.

For instance, Priya might start by replacing the sugar in chai with natural sweeteners like honey, which not only reduces the amount of processed sugar her children consume but also provides additional nutrients not found in refined sugar. She might also experiment with making biscuits at home, using whole grain flours, and reducing the sugar content by incorporating naturally sweet ingredients like ripe bananas or raisins.

This transition to more mindful preparation of traditional foods allows Priya to keep the cherished morning ritual alive while aligning it with healthier practices.

This balanced approach to diet can have significant benefits for cognitive function and overall well-being. By integrating mindful eating practices, individuals can preserve their mental acuity and enhance their health, creating a lifestyle that supports longevity and quality of life. This kind of dietary mindfulness helps bridge the gap between cultural heritage and contemporary health consciousness, promoting a comprehensive approach to wellness that respects and utilizes the best of both traditional and modern knowledge.


References:

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  3. Del-Ponte, B., Anselmi, L., Assunção, M. C. F., Tovo-Rodrigues, L., Munhoz, T. N., Matijasevich, A., ... & Santos, I. S. (2019). Sugar consumption and attention-deficit/hyperactivity disorder (ADHD): A birth cohort study. Journal of affective disorders, 243, 290-296.

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  6. Molteni, R., Barnard, R. J., Ying, Z., Roberts, C. K., & Gómez-Pinilla, F. (2002). A high-fat, refined sugar diet reduces hippocampal brain-derived neurotrophic factor, neuronal plasticity, and learning. Neuroscience, 112(4), 803-814.

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