Month: September 2025

You may have seen headlines about acrylamide and wondered what it means for what you eat. Acrylamide is a chemical that shows up in many foods when they are cooked at high heat — think fries, chips, toast, and roasted coffee. It isn’t something added on purpose; it happens naturally when certain ingredients in food change during cooking. Understanding what acrylamide is, what it may do in the body, and how to lower your exposure can help you feel more at ease about food choices.

What Is Acrylamide?

Acrylamide forms when food with certain sugars and an amino acid called asparagine is cooked at very high temperatures, usually above about 248°F (120°C). That’s why foods that are fried, roasted, baked, or toasted often contain it. The same browning that creates the golden crust on bread, the crispy outside of French fries, or the roasted flavor of coffee also produces acrylamide.

The darker and crispier a food is, the more acrylamide it tends to have. Very dark toast or extra-crispy fries carry higher amounts than lighter versions.

Foods That Tend to Have More Acrylamide

What We Know About Health Risks

Much of what we know about acrylamide comes from animal studies. At high doses, it has been linked to both cancer and neurological damage.

The International Agency for Research on Cancer calls acrylamide a “probable human carcinogen.” Studies in people have not always shown the same cancer connections, but the possibility keeps it on researchers’ radar.

The most consistent concern comes from neurological effects. Workers exposed to high levels of acrylamide in industrial settings developed symptoms such as numbness, tingling, muscle weakness, and poor coordination. Animal studies also show changes in the nervous system at exposure levels lower than those that cause cancer. While the amount from food is much less than occupational exposures, the fact that acrylamide targets the nervous system is one reason experts continue to watch it closely.

Acrylamide also crosses the placenta, which means developing babies may be exposed during pregnancy. Animal studies suggest this may affect growth or development, though human data are less clear.

Simple Ways to Reduce Acrylamide in Your Diet

You don’t have to give up your favorite foods, but a few small changes can lower acrylamide intake:

• Cook fries, hash browns, or roasted potatoes until golden, not dark brown
• Soak potato slices briefly before frying or baking to reduce the sugars that feed acrylamide formation
• Avoid storing raw potatoes in the refrigerator — cold temperatures raise sugar content, which increases acrylamide during cooking
• Toast bread lightly instead of darkening it
• Choose boiled, steamed, or slow-cooked foods more often, which rarely contain acrylamide
• Enjoy coffee in moderation; roasting and brewing both influence levels, but darker roasts may not always mean more acrylamide

Putting It in Perspective

It can sound unsettling to know that something in fries, toast, and coffee might affect the nervous system. Still, it’s important to keep in mind that the amounts from food are much lower than those linked with obvious neurological problems in workers or lab animals. Acrylamide is one of many factors researchers are studying, but it is not considered the biggest risk in everyday diets.

For long-term health, lifestyle choices like avoiding smoking, limiting alcohol, staying active, and eating a variety of whole foods have a far stronger impact than acrylamide alone.

Bottom Line

Acrylamide is a chemical byproduct of high-heat cooking that may affect the nervous system at high doses and has been linked to cancer in animals. While human data are less clear, it makes sense to be mindful. Small changes — lighter cooking, more steaming or boiling, and not over-browning foods — can lower your exposure without requiring drastic changes.

If you have questions about how this fits into your diet, a registered dietitian can help you sort through the evidence and find practical strategies that reduce worry while keeping meals enjoyable.