Functional foods for healthy aging

August 21, 2021

by Alison Duncan, PhD, RD

Foods that provide health benefits beyond basic nutrition are considered ‘functional’ foods. They contain ingredients that aren’t essential for growth and development, but promote optimal health.

My name is Dr. Alison Duncan, and I’m a Professor in Nutritional Science at the University of Guelph. We all know how important nutrition is for our health as we get older. Our risk for many chronic diseases increases, but functional foods can help reduce that risk.

Examples of functional foods

  • Blueberries are a natural source of antioxidants, which help to prevent cancer.
  • Cereal with added dietary fibre keep the bowels healthy.
  • Eggs with the omega-3 fatty acids DHA and EPA are good for heart health.

New functional foods emerge from research

I focus much of my research on functional foods and their health benefits. Some of these foods are so new, they aren’t even on the market yet! For instance there’s a new spearmint tea for osteoarthritis, and soy muffins for improved heart health.
I’m part of a research team looking at bagels that are high in resistant starch. Resistant starch is a type of dietary fibre that reduces the risk of diabetes. The “Better Bagel Study” has shown that eating bagels high in resistant starch can improve how our bodies manage blood sugar.

These bagels haven’t hit the shelves yet. But you can combat diabetes with other functional foods that are high in dietary fibre:

  • Breakfast cereal: Look for breakfast cereals with at least 4 grams of dietary fibre in each serving.
  • Oatmeal: Still one of the best ways to start the day. For added functional food punch, mix in some blueberries, cinnamon, and walnuts!
  • Whole grain bread: Choose breads made from whole grains for the most nutrition.

Functional foods for healthy aging

Want to learn more about functional foods?

I’m part of a nutrition research group called Agri-food for Healthy Aging. This is part of the Schlegel-UW Research Institute for Aging. If you’d like to learn more about research exploring functional foods for healthy aging visit the A-HA website . You’ll also find a Functional Foods for Healthy Aging Toolkit and fact sheets on common functional food ingredients, such as omega-3 fatty acids, plant sterols, and dietary fibre.

About the Author
Alison Duncan, Ph.D., R.D. is a Professor and Associate Director of Research at the Human Nutraceutical Research Unit in the Department of Human Health and Nutritional Sciences at the University of Guelph.

Click Here for print PDF file – Healthy Eating – Functional foods for healthy aging

Are you eating right as you age? Find out with this easy online tool!

June 26, 2021

By: Hilary Dunn, MSc

As we age, our risk for developing diseases like diabetes and cancer can increase, so prevention becomes even more important. Eating well can help to lower our risk.

But how do we know if we’re eating the right foods and getting enough of the right nutrients?

Professor Heather Keller is Schlegel Research Chair in Nutrition & Aging at the University of Waterloo. She has developed a tool called Nutri-eSCREEN to help older adults find out if their eating habits are supporting their health. The tool also tells you what you can do to improve and points you to resources.

Nutri-eSCREEN is a survey developed specifically for adults 50 and over. It asks you 14 questions that assess your appetite, eating habits, and changes in weight.

“Nutri-eSCREEN is very easy to complete, and we know from research that it’s a good predictor of who needs help with their eating habits. Food and nutrition are very important to healthy aging, and this tool helps point people in the right direction,” says Professor Keller.

Available free online

Nutri-eSCREEN is available online. Anyone can use it free of charge. After you complete the questionnaire, you will receive individual results highlighting what you’re doing well and what can be improved.

Are you eating right as you age?

A tool with tips you can trust

With all of the information flying around about food and health, it’s hard to know what to believe. Nutri-eSCREEN is a research-based tool that can help you find out if you are at risk for poor nutrition. Plus, you get tips you can trust on how to improve.

Try Nutri-eSCREEN today:

Learn more:

For more information about Professor Keller’s nutrition and healthy aging research, visit:
Schlegel-UW Nutrition and Aging Lab
Agri-food for Healthy Aging

About the Author:
Hilary Dunn is the Program Manager of Agri-food for Healthy Aging (A-HA). A-HA is the nutrition research program at the Schlegel-University of Waterloo Research Institute for Aging. You can reach her at

Research Institute for AgingUniversity of Waterloo

Click Here for print PDF file – Healthy Eating – Are you eating right as you age?