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Can Aspartame Cause Alzheimer’s?

An older adult taking a spoonful of artificial sweetener to mix into a clear cup of iced tea.

A healthy lifestyle is rewarding. However, sometimes subtle factors can affect a person’s overall health. It’s essential to pay attention to the little things—this is the key to lowering the risk of conditions like Alzheimer’s disease.

Even the food and drinks you consume play a part. Many foods contain aspartame, an artificial sweetener. While aspartame doesn’t directly cause Alzheimer’s disease, it does increase a person’s risk of this condition.

What Is Aspartame, Exactly?

You’ve likely consumed aspartame before, even if you didn’t realize it. It’s a calorie-free sugar substitute that’s about 200 times sweeter than regular sugar, making it ideal for those looking to cut calories without sacrificing taste. It’s most commonly used in products labeled as “sugar-free” or “diet.”

From diet sodas to certain snack bars, many of these foods rely on the strong sweetness of aspartame to capture the flavor of sugar without the calories. This versatility has made it popular over the years, but that doesn’t mean aspartame is harmless. It can increase inflammation throughout the body—even in the brain.

What Common Foods Contain Aspartame?

Aspartame is in all kinds of everyday foods and drinks, such as:

  • Diet sodas or other sugar-free carbonated beverages 
  • Chewing gum labeled as “sugar-free” 
  • Flavored or low-calorie yogurt 
  • Snack bars or protein shakes marketed as “low-calorie” 
  • Sugar-free hard or soft candies 
  • Flavored waters or hydration drinks 
  • Liquid or powder forms of over-the-counter medications 

When buying something, check ingredient labels for sweeteners like aspartame. While the occasional small amount won’t harm you, aspartame should be consumed in moderation to minimize its effects on your body.

What Is Alzheimer’s Disease?

Alzheimer’s disease is a progressive condition that affects thinking, memory, and behavior. It’s the leading type of dementia, and accounts for between 60 and 80% of all cases.

The disease is characterized by a steady buildup of proteins in the brain. Over time, these can damage or destroy brain cells. Inflammation intensifies as the condition progresses, exacerbating the damage. As the disease progresses, the symptoms become much more noticeable.

Alzheimer’s disease is a complex condition. No single factor leads to this condition. Instead, it develops as a result of genetics, environment, diet, and lifestyle choices.

How to Recognize Alzheimer’s Disease

Alzheimer’s disease progresses slowly. It often looks like regular age-related forgetfulness. However, recognizing the earliest signs of Alzheimer’s disease is important—that’s how you tell when it’s time to step in and consider memory care.

Alzheimer’s disease can cause:

  • Forgetting critical dates or events more frequently than usual 
  • Struggling to plan or complete familiar tasks 
  • Becoming confused about time or location 
  • Challenges in solving problems or following sequences 
  • Having trouble understanding spatial relationships 
  • Swapping words or losing track of a conversation suddenly 
  • Unpredictable changes in mood or behavior 

If these sound familiar, don’t ignore them. Identifying your loved one’s symptoms is the first step toward helping preserve their quality of life.

The Link Between Aspartame & Alzheimer’s Risk

Alzheimer’s isn’t a simple condition. A person’s risk isn’t determined just by the foods they eat—it involves assessing overall lifestyle, habits, genetics, and more.

A doctor listening and smiling while discussing how to lower the risk of Alzheimer's disease with an older patient.

However, aspartame does increase inflammation throughout the brain. Over time, this inflammation can damage brain cells. If a person regularly consumes high levels of aspartame, this risk increases even further, and eventually, this can lead to a higher risk of Alzheimer’s.

This means that while aspartame doesn’t directly cause Alzheimer’s disease, it does affect a person’s risk. It’s essential to practice healthier lifestyle habits, and remember that foods containing aspartame should always be consumed in moderation.

Can You Lower Your Risk of Alzheimer’s Disease?

Fortunately, there are plenty of small changes you can make over time. With several simple adjustments, a person can lower their risk of developing Alzheimer’s disease.

It can help to:

  • Follow a diet rich in whole foods, vegetables, lean proteins, and healthy fats 
  • Exercise regularly with activities like walking, swimming, or yoga 
  • Stay mentally sharp by reading, solving puzzles, or picking up new skills 
  • Prioritize high-quality sleep and work on lowering overall stress 
  • Limit the consumption of processed foods and artificial sweeteners 
  • Choose healthier alternatives like natural fruit-based sweeteners where possible 

Making these small, but impactful, consistent lifestyle changes can bring significant benefits over time.

The Value of a Healthier Lifestyle

Your day-to-day choices matter. By keeping your meals balanced, staying active, and paying attention to habits, you’re helping build a foundation for lifelong brain health. While aspartame won’t directly cause Alzheimer’s disease, its role in cognitive decline shouldn’t be ignored. Moderation matters, and it’s linked to a healthier mind.

At Juniper Village at Monroeville, we encourage every step toward a healthier, happier life. Here, we love supporting community members in their journey. That’s why we offer fitness programs, nutritious dining, social support, and more, all designed to make achieving a healthy lifestyle easier. Schedule a tour with us today to see for yourself!

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