Fri Sep 11, 2026 | 06:52 PM IST

Limiting Sugar Before Age 2 Linked To Lower Dementia Risk: Study

Could a baby's diet impact their brain health decades later? Learn how limiting sugar before age 2 is linked to a much lower dementia risk in a new study. 
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Parents are often very strict about not feeding chocolates to their toddlers. Their main reason for this is to avoid cavities and obesity. But exposing toddlers to sugar can do more harm than this. A new study claims so. As per the latest findings, reducing sugar intake in kids below the age of 2 is associated with lower dementia risk in later years of life. Want to know more about the research? Read ahead.

What is The New Study on Dementia About?

A recent study, published in the Neurology journal, discovered that consuming less sugar in utero before birth (exposing the developing fetus to lower glucose levels via the mother's bloodstream) and during the first one to two years of life is linked to a lower risk of developing dementia later in life. 

The findings were published on July 29 by the American Academy of Neurology. The study did not claim that reduced sugar consumption can prevent dementia. Instead, it only shows a connection between sugar and dementia risk. For the study, researchers examined data of 64,737 people who were born before and after World War II sugar rationing in the United Kingdom. During this time, sugar was rationed during and after the war and then became widely available again in 1953.

The research compared thousands of people, who were born during a period of strict ‘sugar rationing"’to those born after restrictions ended. The study came to the following conclusion:

  • Up to Age 1: Individuals who experienced strict sugar limits before birth and throughout their first year of life showed a 21% lower risk of developing dementia.
  • Up to Age 2: Retaining sugar limits through the second year of life lowered the dementia risk even further, up to 23%.
  • Delayed Onset: For people who had low sugar intake early in life but still eventually developed dementia, the onset of the disease was delayed by an average of 2.6 years.

The study noted that these protective benefits remained strong even after researchers took into account other health factors that usually influence dementia, such as age, sex, diabetes, and high blood pressure. To conclude, the research showed that consuming less sugar in the earliest stages of life provides a lasting shield for long-term brain health.

kids dementia study 1

Symptoms of Dementia

According to the World Health Organization (WHO), these are the early signs and symptoms  of dementia: 

  • Forgetting things or recent incidents.
  • Losing or misplacing things.
  • Getting lost when walking or driving.
  • Being confused, even in familiar places.
  • Losing track of time.
  • Difficulties solving problems or making decisions.
  • Problems following conversations or trouble finding words.
  • Difficulties performing familiar tasks.
  • Misjudging distances to objects visually.

Common changes in mood include:

  • Feeling anxious, sad, or angry about memory loss.
  • Personality changes.
  • Inappropriate behaviour.
  • Withdrawal from work or social activities.
  • Being less interested in other people’s emotions.

Tips To Reduce Dementia Risk

The World Health Organization says that people can reduce their risk of cognitive decline and dementia by following healthy behaviours and lifestyles, managing health conditions that are known to increase the risk for dementia, and reducing environmental risk factors. As per WHO, here are some important lifestyle changes to adopt:

  • Be physically active.
  • Avoid smoking.
  • Avoid alcohol.
  • Eating a healthy and balanced diet.
  • Staying socially and cognitively active.
  • Maintain a healthy weight.
  • Managing your blood pressure, cholesterol and blood sugar levels.
  • Use hearing aids where needed.
  • Reduce exposure to air pollution.

ALSO READ- Spouses of Dementia Patients Are At Around 70% Higher Risk of Developing The Condition: Study

Conclusion

To conclude, a new research highlights that safeguarding long-term brain health starts as early as the first few years of life. It notes that reducing sugar intake in kids below the age of two is linked to better cognitive performance and lower dementia risk later in life. Along with combining early dietary mindfulness, healthy lifelong habits can help individuals build stronger cognitive resilience against dementia. 


FAQ

  • Does eating sugar affect dementia? 

    Yes, too much sugar is generally bad for dementia patients because it causes blood sugar spikes, brain inflammation, and worse cognitive decline.
  • At what age does dementia start? 

    Dementia most commonly starts after age 65, with the risk doubling every five years thereafter. 

Read Next

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Shruti Das

Shruti Das

Senior Sub Editor

Shruti Das is a health and lifestyle journalist with eight years of experience across print and digital media. She currently works as a Senior Sub Editor at OnlyMyHealth, where she writes on women's health, sexual health, mental health, nutrition, and skincare. Her work focuses on breaking down complex health topics and medical research into clear, reader-friendly information. While reporting on health subjects, she relies on credible research, expert insights, and verified medical sources. Shruti taps into her network of doctors and medical experts to get articles that involve medical claims reviewed before publication. Before joining Jagran New Media, Shruti worked with Patriot Newspaper, HT City (Hindustan Times), and Storytailors, where she developed her foundation in news reporting, lifestyle journalism, and long-form storytelling.

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  • Current Version

    Jul 30, 2026 14:18 IST

    Published By : Shruti Das

Medically reviewed content
200+ medical reviewers in network
17 Years of Trusted Health Content
Medically reviewed content
200+ medical reviewers in network
17 Years of Trusted Health Content
Medically reviewed content
200+ medical reviewers in network
17 Years of Trusted Health Content