The Science Behind Sugar Cravings and How to Manage Them Safely

Americans spent more than $5 billion on Easter candy in 2024, with chocolate bunnies and eggs ranking among the most popular treats, according to the National Confectioners Association. While enjoying a candy or two during a holiday is harmless, consistently consuming too much sugar poses significant risks to long-term metabolic and brain health.

Why Humans Are Wired to Love Sugar

Few behaviors are as deeply ingrained in human nature as the craving for sugar. Alex DiFeliceantonio, an assistant professor at the Fralin Biomedical Research Institute at VTC, explains that sugar and fat combinations—common in chocolate—are particularly rewarding to the brain.

“Your brain runs on glucose—that’s its primary fuel,” DiFeliceantonio says. “In our evolutionary environment, it made sense to consume a lot of a resource when it was available. Today, that instinct works against us because sugar is far more accessible than our bodies need.”

The Dangers of Excess Sugar Consumption

Brenda Davy, a professor in the Human Nutrition, Foods, and Exercise Department at Virginia Tech and a registered dietitian, highlights the health risks of added sugar:

• Metabolic diseases, including type 2 diabetes
• Cardiovascular issues
• Weight gain
• Poor diet quality

“Health organizations like the American Heart Association recommend limiting foods and beverages with added sugars,” Davy says. “A general guideline is to keep added sugar intake below 10% of total daily calories.”

For someone consuming 2,000 calories a day, that means no more than 200 calories from added sugar—roughly the amount in seven or eight marshmallow Peeps. “Children should consume even less,” Davy adds, “since high-sugar foods often replace nutrient-rich options, impacting growth and development.”

The Difference Between Natural and Added Sugars

Davy emphasizes the importance of distinguishing between natural sugars in foods like fruits and added sugars in processed treats.

“Fruits contain fiber and essential nutrients that support health,” she says. “They fit into balanced diets like the DASH diet and the Mediterranean diet.”

Long-Term Effects on Brain Health

Excess sugar intake doesn’t just affect the body—it can also harm brain health over time. DiFeliceantonio warns that prolonged high sugar consumption may lead to:

• Increased inflammation
• Higher risk of type 2 diabetes
• Cognitive decline

“Long-term excess sugar intake will lead to increased weight and, in some people, type 2 diabetes,” DiFeliceantonio says. “Those conditions are also detrimental to brain health.”

How to Enjoy Holiday Treats Without Harm

As Easter approaches and candy fills store shelves, Davy and DiFeliceantonio offer these tips to manage sugar intake:

• Limit portion sizes—stick to small servings of your favorite treats.
• Balance with nutrient-rich foods—pair sweets with fruits, vegetables, or proteins.
• Stay hydrated—water can help reduce cravings.
• Plan ahead—if you know a holiday is coming, adjust your meals to accommodate occasional indulgences.