✦ Room № 07 · 7 essays

Gut.

The 100 trillion roommates running your immune system, your mood, and your bathroom habits.

  1. 01
    GutApr 10, 2026

    You have 100 trillion roommates and you keep feeding them cardboard.

    The microbes in your gut outnumber your own cells, produce most of your serotonin, and quietly run a huge chunk of your immune system. We are absolutely starving them.

    Mr. Jay

    12 min read

  2. 02
    GutMay 30, 2026

    You are 25 grams of fiber short, and your mood is paying the bill.

    The average adult eats 12 to 15 grams of fiber a day. Your great grandmother ate 50. The gap explains more about modern health than any supplement aisle ever will.

    Mr. Jay

    12 min read

  3. 03
    GutMay 31, 2026

    Artificial sweeteners are renting space in your microbiome.

    Zero calories does not mean zero consequences. The diet soda you trusted to be neutral is quietly reshaping the bacterial city inside your gut.

    Mr. Jay

    12 min read

  4. 04
    GutJun 10, 2026

    A small rotation of fermented foods will outperform every probiotic capsule you can buy.

    The capsules promise specific strains in specific counts. Real fermented food delivers living microbial diversity that no manufacturer can match in a pill.

    Mr. Jay

    10 min read

  5. 05
    GutJun 15, 2026

    You are buying probiotics and forgetting the food they actually need to eat.

    The supplement aisle is full of living bacteria in expensive capsules. Without the right fiber, they arrive at a party with no food and no music and die within days.

    Mr. Jay

    11 min read

  6. 06
    GutJun 22, 2026

    Fiber is not just for regularity. It is food for the 100 trillion roommates in your gut.

    The average adult eats half the fiber their gut microbiome needs. The result is a starving bacterial ecosystem and a long list of modern health problems.

    Mr. Jay

    12 min read

  7. 07
    GutJun 30, 2026

    Your gut has a mucus shield, and fiber is what keeps it intact.

    The gut lining is not a wall. It is a living, breathing barrier coated in mucus, and most modern diets are stripping that coating away one meal at a time.

    Mr. Jay

    12 min read