The Microbiome Map

Your digestive tract is a complex ecosystem. Each region has unique pH levels and bacterial populations with specialized roles.

Stomach

pH 1.5-3.5 (Highly Acidic)

Predominant Bacteria:

  • • Helicobacter pylori
  • • Lactobacillus

Harsh acidic environment that kills most bacteria and begins protein digestion.

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Small Intestine

pH 6-7 (Neutral)

Predominant Bacteria:

  • • Lactobacillus
  • • Streptococcus

Nutrient absorption occurs here. Moderate bacterial population.

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Colon

pH 5.5-7 (Slightly Acidic to Neutral)

Predominant Bacteria:

  • • Bacteroidetes
  • • Firmicutes
  • • Bifidobacterium

The most densely populated region. Trillions of bacteria ferment fiber, produce vitamins, and protect against pathogens.

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