Bowel & Gut

Leaky Gut & Intestinal Permeability

Repair the gut lining, calm inflammation, and restore healthy microbial balance — the foundation of immune and systemic health.

Prevention

Key nutrients: L-glutamine, zinc carnosine, vitamin A, vitamin D, omega-3, polyphenols, fiber, prebiotics, probiotics.

Eat regularly: Bone broth, fermented vegetables (sauerkraut, kimchi), kefir, yogurt, slippery foods (okra, chia, flax), cooked apples, bananas, oats, leafy greens, blueberries, oily fish.

Identify and remove triggers — gluten, ultra-processed foods, excess alcohol, NSAIDs, glyphosate. Chew thoroughly, eat slowly, manage chronic stress.

L-glutamine

OtherStrong evidence

5 g powder in water 1–2×/day on empty stomach — primary fuel for enterocytes and the most studied amino acid for gut-lining repair.

Bone broth

FoodTraditional use

1–2 cups daily — collagen, glycine, proline, and gelatin nourish the gut lining and seal tight junctions.

Slippery elm

HerbModerate evidence

1 tsp powder in water 2–3×/day — forms a soothing mucilage that coats and protects irritated gut tissue.

Marshmallow root

HerbModerate evidence

Cold infusion (1 tbsp in cold water overnight), sip throughout the day — demulcent that calms inflamed intestinal lining.

Zinc carnosine

OtherStrong evidence

75 mg 2×/day with food — clinically shown to repair gastric and intestinal lining and reduce permeability.

Quercetin

OtherModerate evidence

500 mg 2×/day — strengthens tight junctions between gut cells and calms mast-cell-driven inflammation.

Saccharomyces boulardii

OtherStrong evidence

5–10 billion CFU/day — beneficial yeast that supports IgA and gut barrier function.

Multistrain probiotics

OtherStrong evidence

20–50 billion CFU/day of diverse Lactobacillus and Bifidobacterium strains restores microbial balance.

Aloe vera (inner leaf)

HerbModerate evidence

30–60 ml inner-leaf juice 2×/day soothes and supports healing of the intestinal mucosa.

Vitamin D3

VitaminStrong evidence

2000–5000 IU/day — regulates tight-junction proteins and gut immunity. Pair with K2.

Omega-3 (fish/algae)

OtherStrong evidence

2–3 g EPA+DHA daily lowers gut inflammation and supports mucosal repair.

Calcarea Phosphorica 6X (tissue salt)

MineralTraditional use

Schüssler salt — 4 tablets 2–3× daily supports tissue regeneration and absorption of nutrients.

A note of caution. Natural doesn't mean risk-free. Herbs and supplements can interact with medications, affect pregnancy, or worsen certain conditions. Speak with a qualified clinician before starting a new regimen, especially if you take prescriptions.