lactose intolerance lisa

Managing Lactose Intolerance: A Dietitian’s Approach: Trending Now Presentation


Written by: CDHF

Updated: February 5th, 2024

This presentation entitled “A Dietitian’s Approach to Managing Lactose Intolerance” was done as part of CDHF’s 10th educational summit, “#TrendingNow: Putting The Biggest Gut Health Trends Under the Microscope.” Watch the full presentation below!

Learning Objectives:

What is lactose intolerance?

Lactose intolerance is the inability to digest the sugar lactose. We find lactose in dairy products produced by animals. The most common symptoms include bloating, diarrhea, gas, and/or stomach cramps/pain. Timing of these symptoms typically occur between 1-2 hours after consuming lactose. Symptoms can vary in severity from person to person.

Levels of Lactose Intolerance

Primary Lactase deficiency

When people stop producing lactase enzymes from a genetic standpoint. Some people may experience this due to genetic and ethnic factors. Primary lactase deficiency is more common in certain ethnic groups including Asian and African due to the prevalence of gene for lactase persistence. 

Secondary Lactase Deficiency

Lactase deficiency not because the person has stopped making the lactase enzyme, but because the enzyme gets diluted before somebody can digest the lactase. Can occur in those with Irritable Bowel Syndrome, Celiac Disease and Inflammatory Bowel Disease. This deficiency can often be corrected.

How is lactose intolerance different from a dairy allergy?

Lactose intolerance involves digestion (occurs in the digestive tract), while dairy allergies are an immune response to a protein in dairy. For most people, this intolerance allows for some dairy consumption. Dairy allergy symptoms include hives and throat swelling. 

About the Speaker

Lisa is a Registered Dietitian and Co-Owner of NutriProCan, a company providing services by registered dietitians. Throughout her undergraduate and postgraduate studies at Western and The University of Guelph, Lisa studied nutrition, dietetics, biochemistry, genetics, and nutraceutical sciences. At the same time, she began her career in health and fitness, building a successful personal training business. She proceeded to work in clinics, gyms and biotechnology and teach nutrition sciences at Brescia University College.

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