Gut Health & Microbiome

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In functional medicine, gut health is considered a central pillar of overall wellness. The gut microbiome—the diverse community of microorganisms living in your digestive tract—is seen not only as vital for digestion, but also as deeply connected to immune function, hormone balance, brain health, detoxification, and chronic disease.

1. The Gut as the "Second Brain"

• The gut is home to the enteric nervous system, which communicates with the brain via the gut-brain axis.
• Microbiome imbalances can contribute to mood disorders, brain fog and cognitive decline.

2. The Microbiome’s Role in Health

• Assists in nutrient absorption and vitamin production (e.g., B vitamins, vitamin K).
• Supports immune system regulation (70–80% of the immune system resides in the gut).
• Helps maintain the intestinal barrier (to prevent “leaky gut”).

3. Dysbiosis

• Refers to an imbalance of gut bacteria, often due to antibiotics, poor diet, stress, or environmental toxins.
• Linked to conditions like:
  • IBS and IBD
  • Autoimmune diseases
  • Skin disorders (eczema, psoriasis)
  • Chronic fatigue
  • Obesity and metabolic syndrome

Why does assessment matter by The Age Less Clinic & General Practice doctors? Addressing the microbiome and gut health often leads to system-wide improvements, not just in digestion, but in energy, mental clarity, mood, and immune balance.

Gut health is a cornerstone of functional medicine because the gastrointestinal system plays a critical role in nearly every aspect of overall health. The gut microbiome—a diverse ecosystem of bacteria, fungi, and other microorganisms—supports digestion, regulates the immune system, synthesizes essential vitamins, and helps maintain the integrity of the gut lining. When this delicate balance is disrupted, it can lead to inflammation, impaired nutrient absorption, and a host of chronic conditions ranging from autoimmune disorders to mental health issues. Functional medicine emphasizes restoring and maintaining gut health through personalized approaches that address root causes, such as diet, stress, infections, and environmental toxins. By supporting the gut, functional medicine aims to improve systemic health and promote long-term wellness.