Journal of Food Nutrition and Health

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Short Communication - Journal of Food Nutrition and Health (2025) Volume 8, Issue 3

Gut Health and Nutrition: How to Feed Your Microbiome

Maimunah Khalid*

Department of Food Sciences, National University of Malaysia, Malaysia

*Corresponding Author:
Maimunah Khalid
Department of Food Sciences, National University of Malaysia, Malaysia
E-mail: m.khalid@ukm.edu.my

Received: 1-Sep-2025, Manuscript No. aajfnh-25-167953; Editor assigned: 3-Sep-2025, PreQC No. aajfnh-25-167953 (PQ) Reviewed:17-Sep-2025, QC No. aajfnh-25-167953 Revised:24-Sep-2025, Manuscript No. aajfnh-25-167953; Published:30-Sep-2025, DOI: 10.35841/aajfnh-8.3.268

Citation: Khalid M. Gut health and nutrition: How to feed your microbiome. J Food Nutr Health. 2025;8(3):268

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Introduction

In recent years, the gut microbiome has emerged as one of the most exciting frontiers in health and nutrition research. Once thought to be just a digestive aid, the trillions of microorganisms living in our intestines are now recognized as key players in immunity, mood regulation, metabolism, and chronic disease prevention. What we eat plays a critical role in shaping the health and diversity of these microbes, making nutrition one of the most powerful tools for supporting gut health [1].

The gut microbiome is a vast ecosystem of bacteria, fungi, viruses, and other microorganisms that live primarily in the large intestine. These microbes help break down food, synthesize vitamins, support the immune system, and even communicate with the brain through the gut-brain axis. A healthy microbiome is diverse and balanced, but poor diet, stress, medications (especially antibiotics), and illness can disrupt this balance, leading to what’s known as dysbiosis [2].

Nutrition is the foundation for a healthy microbiome. Diets high in fiber, fermented foods, and plant diversity promote the growth of beneficial bacteria. On the other hand, diets high in sugar, processed foods, and unhealthy fats can decrease microbial diversity and increase the growth of harmful bacteria. This imbalance has been linked to digestive issues, obesity, diabetes, depression, and even autoimmune diseases [3].

One of the best ways to support your gut microbiome is by consuming a wide variety of fiber-rich plant foods. Dietary fiber, especially prebiotic fiber, serves as food for beneficial bacteria. Foods such as garlic, onions, leeks, bananas, asparagus, oats, and legumes contain prebiotics that encourage the growth of helpful microbes like Bifidobacteria and Lactobacillus [4].

Fermented foods are another gut-friendly dietary addition. Yogurt with live cultures, kefir, sauerkraut, kimchi, miso, and kombucha are rich in probiotics—live microorganisms that can help restore the balance of the microbiome. Including these regularly in your diet may improve digestion, reduce bloating, and support immune health [5].

Polyphenols, natural compounds found in fruits, vegetables, tea, and dark chocolate, also play a role in gut health. These compounds are not fully digested by the body but are broken down by gut bacteria, supporting their growth and producing beneficial byproducts. Berries, apples, green tea, and cocoa are excellent sources of polyphenols [6].

Equally important to what you add to your diet is what you limit. High-sugar diets can promote the growth of harmful microbes that contribute to inflammation and disease. Similarly, highly processed foods, artificial sweeteners, and excessive alcohol can negatively affect microbial balance. Reducing these can help preserve a healthy gut environment [7].

Antibiotics, while sometimes necessary, can drastically reduce microbial diversity by killing both good and bad bacteria. After a course of antibiotics, it’s especially important to focus on probiotic and prebiotic foods to help restore gut balance. Probiotic supplements may also be helpful during this recovery phase, but they should be chosen carefully and used under professional guidance [8].

Hydration is another often-overlooked component of gut health. Water helps keep things moving through the digestive tract and supports the mucosal lining of the intestines, where many microbes live. Drinking enough water each day can help prevent constipation and maintain a healthy gut environment [9].

Interestingly, gut health is also closely linked to mental well-being. The gut and brain communicate via the vagus nerve and through biochemical signals, often referred to as the gut-brain axis. A healthy gut can positively influence mood, stress levels, and even cognitive function. This adds another layer of importance to caring for your gut through good nutrition [10].

Conclusion

In conclusion, feeding your microbiome is about more than digestion—it's about supporting every aspect of your health. By eating a diverse, fiber-rich, plant-forward diet and incorporating probiotic and prebiotic foods, you can foster a balanced gut microbiome. In doing so, you’re investing not only in your digestive health but in your immune system, mood, metabolism, and overall quality of life.

References

  1. Buffer J., Kendall P., Medeiros L.C., et al. Nurses and dieticians differ in food safety information provided to highly susceptible clients.J Nutr Educ Behav.2013;45(2):102-108.

Indexed at, Google Scholar, Cross Ref

  1. Cody M., Hogue M. Results of the home food safety- It’s in your hands 2002 survey: Comparisons to the 1999 benchmark survey and health people 2010 food safety behaviours objective.J Am Diet Assoc.2003;103(9):1115-125.

Indexed at,Google Scholar, Cross Ref

  1. De Jong A., Verhoeff-Bakkenes L., Nauta M., et al. Cross-contamination in the kitchen: Effect of hygiene measures.J Appl Microbiol.2008;105(2):615-24.

Indexed at, Google Scholar, Cross Ref

  1. Scallan E., Griffin P., Angulo F., et al. Foodborne illness acquire in the United States-Unspecified agents.Emerg Infect Dis.2011;17(1):16-22.

Indexed at, Google Scholar, Cross Ref

  1. Scallan E., Hoekstra R., Angulo F., et al. Foodborne illness acquired in the U.S.- Major pathogens.Emerg Infect Dis.2011;17(1):1-15.

Indexed at, Google Scholar, Cross Ref

  1. Dolan L.C., Matulka R.A., Burdock G.A. Naturally occurring food toxins.Toxins.2010;2(9):2289-332.

Indexed at, Google Scholar, Cross Ref

  1. Julier Z., Park A.J., Briquez P.S., Martino M.M. Promoting tissue regeneration by modulating the immune system.Acta Biomater.2017;53:13-28.

Indexed at, Google Scholar Cross Ref

  1. Lee G.Y., Han S.N. The Role of Vitamin E in Immunity.Nutrients.2018;10(11):1614.

Indexed at, Google Scholar, Cross Ref

  1. Levy M., Thaiss C.A., Elinav E. Metabolites: Messengers between the microbiota and the immune  system.Genes Dev.2016;30(14):1589-97.

Indexed at, Google Scholar, Cross Ref

  1. Maggini S., Pierre A., Calder P.C. Immune function and micronutrient requirements change over the life course.Nutrients.2018;10(10):1531.

Indexed at, Google Scholar, Cross Ref

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