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The Connection Between Your Diet and Gut Microbiome Health

How Your Diet Affects Your Gut Microbiome 

Did you know that your diet directly influences your gut microbiome? Most people understand that eating fast food every day isn’t healthy, but few realize how it impacts gut health. A poor diet doesn’t just lead to weight gain—it can also disrupt essential functions in the body and contribute to long-term health issues.

A high-fat, high-calorie diet decreases gut microbe diversity and increases harmful bacteria linked to obesity, inflammation, and metabolic disorders. The more diverse your gut microbiome, the better your overall health. Since the gut microbiome regulates fat storage and nutrient absorption, a lack of diversity can impair digestion and metabolism, leading to energy imbalances and chronic inflammation.

But digestion isn’t the only function of your gut microbiome. It also plays a crucial role in immune function and brain health.

How is the Gut Microbiome Connected to Mental Health?

Your gut and brain constantly communicate through the gut-brain axis. The microbiome produces neurotransmitters like serotonin and dopamine, which influence mood, stress levels, and cognitive function. When gut bacteria become imbalanced due to poor diet, it can contribute to anxiety, depression, and brain fog. Studies show that people with a diverse gut microbiome often experience better mental health, improved focus, and emotional well-being.

What Diet Supports a Healthy Gut?

Eating a variety of whole foods helps maintain a balanced microbiome. Fiber-rich foods, such as fruits, vegetables, and whole grains, support beneficial gut bacteria. Fermented foods like yogurt, kimchi, and sauerkraut provide probiotics, while prebiotics (found in foods like garlic, onions, and bananas) help nourish good bacteria. Reducing processed foods, added sugars, and unhealthy fats can prevent imbalances that harm gut health. Drinking plenty of water also supports digestion and helps maintain microbial balance.

By making mindful food choices, you can support not only your digestion but also your mental and overall well-being, leading to a healthier and more vibrant life.

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Jang - Rehab Specialist
Rehab Specialist

Jang

Jang was born in Incheon, South Korea, and moved to the U.S. when he was one year old. He was raised in Morgan Hill, and from a young age, he knew that helping others made him happy. At 12, he began volunteering in various capacities, including preparing food, cleaning trash, assisting with after-school activities, and more. However, it wasn’t until he took his first actual science course in high school at age 14 that he developed a passion for science.

Combining his love for helping others with his interest in science, Jang attended the University of California, Davis, and earned a Bachelor of Science in Neurobiology, Physiology, and Behavior (NPB). His time there cemented his passion for healthcare. Since graduating, he has worked at various clinics, hoping to gain as much knowledge and experience as possible to positively impact people’s lives.

Initially, Jang aspired to become a Physician Assistant. After working at Norcal Brain Center for a year and witnessing its profound impact on patients, he hopes to become a clinical neurologist one day.

He enjoys working out, spending time outdoors, and exploring new restaurants with friends and family in his free time.

Shrina: Rehab Specialist
Rehab Specialist

Shrina

Originally from the Bay Area, Shrina moved to sunny San Diego to pursue her education at the University of California, San Diego, where she earned a Bachelor of Science in Human Biology. After several years of exploring life on the coast, she returned to her hometown of San Jose, where she is thrilled to be surrounded by her large, supportive family.

Shrina is working toward becoming a Physician Assistant—a journey that, while challenging, is deeply fulfilling. She embraces every step of the process as an opportunity for professional and personal growth, believing that each experience shapes her into the compassionate caregiver she aspires to be. From a young age, she has been driven by a desire to help others meaningfully, a passion that has guided her throughout her career.