Several studies provide insights into how sugar consumption can influence immune function, particularly regarding inflammation and the body’s response to pathogens.

Here are a few of those studies and articles:

Ask Dr. Sears:

This resource outlines how consuming high amounts of sugar (75 to 100 grams) can suppress the body’s immune responses. Simple sugars like glucose, table sugar, fructose, and honey can reduce the effectiveness of white blood cells by up to 50%, impacting their ability to combat infections.

Medical News Today:

An article reviews how high intake of refined sugars and saturated fats can damage the immune system, pointing to dietary factors that influence inflammation and immune response.

Nutritional Weight & Wellness:

This study by Loma Linda University shows that consuming different forms of sugar decreases the effectiveness of white blood cells in fighting off infections by up to 50% after consumption, with effects lasting several hours.

Weill Cornell Medicine:

Researchers discuss how excess sugar in the blood can interact with immune proteins, causing inflammatory changes that may promote conditions like atherosclerosis. This study highlights the broader implications of sugar on immune function and overall health.

 

If you have any doubt that high sugar consumption impacts immunity, next time you feel a scratchy throat or cough coming on, eat a bunch of sugary treats and take note of how quickly things turn from bad to worse! I know it’s happened to me several times 😷

If you’re too busy for a sick day, stay away from the sugar!

It doesn’t stop there  😨

Sugar also impacts everything from weight gain to mental health.

 

Originally posted Jan.2014, updated and made more awesome Nov.2024.

 

Hey, wanna practice going sugar free with some helpful tips, accountability, and loads of naturally sweet snack ideas and recipes to help you get through the challenge?  

We tackle no-sugar in both our GRIT50 Challenge and our RxHABITS Nutrition Membership.  Check them out here.