IBS 101: Zinc and Your Gut Health
Article

IBS 101: Zinc and Your Gut Health

Published on Friday, June 10, 2022
by
Emily Hamm

Health & Wellness

Zinc is a micronutrient that is essential for human health. 

It is found in high abundance in the human body and is necessary for the function of over 300 enzymes. Foods that are high in zinc are red meat, poultry, dairy products, beans, nuts and seeds, shellfish like crab and lobster, whole grains, and fortified cereals. The current recommended dietary allowance (RDA) for zinc in adults is 11 mg for men and 8 mg for women. 

Several Key Functions of Zinc are: 

  • Immune function 
  • DNA replication
  • Making proteins
  • Cell death
  • Antioxidant activity

***Even a moderate zinc deficiency can cause decreased immune function putting someone at risk for delayed wound healing and preventing the body from fighting off bacterial and viral infections. 

Research has identified that zinc deficiency can cause intestinal hyperpermeability (weakened junctures between intestinal cells which allow bacteria to easily pass into the bloodstream) ultimately leading to increased diarrhea

Several studies have observed lower zinc levels in people with diarrhea-predominant IBS. 

The GI tract is the site for zinc absorption and excretion. Gut dysbiosis (imbalance of gut microbes) and diarrhea may be linked to decreased zinc absorption leading to a possible deficiency. Another possible reason for zinc deficiency could be due to food avoidance; many people tend to avoid dairy and certain meats as they may cause IBS symptoms (these foods are also rich in zinc). If you are avoiding these foods you might consider getting your zinc levels checked via lab work. 

Testing for zinc levels can be done to identify zinc deficiency but not all tests are sensitive and as mentioned above, even a slight drop in serum zinc levels may reflect symptoms of a zinc deficiency. 

Additional research is needed to identify specific pathophysiology in regards to zinc and its role in IBS but current research suggests that zinc supplementation may be beneficial as well as consuming foods that are higher in zinc as tolerated (varies from person to person based on food sensitivities). 

As always, discuss with a registered dietitian before starting supplements. Your zinc level can be checked and ways to incorporate more zinc-rich foods can be discussed. It should be noted that taking excessive zinc supplements can lead to difficulty with copper and iron absorption and it can also cause symptoms like nausea and vomiting. 

Low FODMAP foods higher in zinc:

  • Canned lentils and chickpeas
  • Whole grains (brown rice, quinoa, teff, millet, oats, buckwheat)
  • Firm tofu
  • Nuts and seeds

Chasapis, C.T., Ntoupa, PS.A., Spiliopoulou, C.A. et al. Recent aspects of the effects of zinc on human health. Arch Toxicol 94, 1443–1460 (2020). https://doi.org/10.1007/s00204-020-02702-9

Hujoel IA. Nutritional status in irritable bowel syndrome: A North American population‐based study. JGH Open. 2020;4(4):656-662. doi:10.1002/jgh3.12311

Rezazadegan M, Soheilipour M, Tarrahi MJ, Amani R. Correlation between zinc nutritional status with serum zonulin and gastrointestinal symptoms in diarrhea-predominant irritable bowel syndrome: A case–control study. Digestive Diseases and Sciences. 2022. doi:10.1007/s10620-021-07368-6 

Comments

Join The Conversation...

Expert Contributor

Emily Hamm

MS, RDN, CSO, LD

Latest Articles

10/10/24
Fall Fortify: Top Nutrition Tips to Boost Your Immune System This Season Fall Fortify: Top Nutrition Tips to Boost Your Immune System This Season

Fall Fortify: Top Nutrition Tips to Boost Your Immune System This Season

Nutrition
Wellness

Haley McGaha

RDN, LD

10/09/24
Beating Reflux Bite By Bite: Homemade Snack Swaps Beating Reflux Bite By Bite: Homemade Snack Swaps

Beating Reflux Bite By Bite: Homemade Snack Swaps

Acid Reflux
GERD

Kitty Broihier

MS, RD, LD

10/08/24
Understanding FODMAPs Series: Part 1 - Oligosaccharides and Their Impact on IBS Understanding FODMAPs Series: Part 1 - Oligosaccharides and Their Impact on IBS

Understanding FODMAPs Series: Part 1 - Oligosaccharides and Their Impact on IBS

Low-FODMAP
IBS

Caitie G

MS, RDN, CNSC, LD

10/07/24
Beyond the Meds: Exploring Complementary Therapies for GERD Relief Beyond the Meds: Exploring Complementary Therapies for GERD Relief

Beyond the Meds: Exploring Complementary Therapies for GERD Relief

Acid Reflux
GERD

Keydella Fuller

MSN, APRN, FNP-C

10/03/24
Boost Gut Health After Antibiotics with Exercise Boost Gut Health After Antibiotics with Exercise

Boost Gut Health After Antibiotics with Exercise

Wellness
Gut Health

Alexander Koch

PhD, CSCS

10/02/24
Vape-Free Gut: Ditch the Vapor, Restore Your Digestion Vape-Free Gut: Ditch the Vapor, Restore Your Digestion

Vape-Free Gut: Ditch the Vapor, Restore Your Digestion

Wellness
Gut Health

Rebecca Ledford

MPH

10/01/24
Fall for Self-Care: Embrace the Cozy Season with this Checklist Fall for Self-Care: Embrace the Cozy Season with this Checklist

Fall for Self-Care: Embrace the Cozy Season with this Checklist

Wellness

Deanna Salles-Freeman

Life & Health Coach

Explore More