Gut & Digestion + Grass-Fed Colostrum + Histamine & Immune

Digestive Stack




This stack is ideal for those seeking to optimize gut and digestive health, and provides comprehensive nutritional support for a strong and healthy gut.
  • 1x Gut & Digestion
  • 1x Grass-Fed Colostrum
  • 1x Histamine & Immune

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This stack is ideal for those seeking to optimize gut and digestive health, and provides comprehensive nutritional support for a strong and healthy gut.

  • Optimize Gut Health

    Essential peptides and nutrients to support fundamental healing pathways within the gut.

  • Improve Digestion

    Contains Gastrin-releasing Peptide which supports efficient digestion by stimulating the release of enzymes, bicarbonate, and fluids.

  • Reduce Inflammation & Bloating

    Rich in beneficial peptides, minerals and growth factors which support your gut's integrity, addressing inflammation and reducing the discomfort of bloating.

  • Bioavailable Nutrients

    Highly bioavailable micronutrients from natural sources deliver superior absorption, maximizing nutrient utiilization for optimal gut and digestive health.

I can tell a huge difference in my digestion and in the amount of energy
I have throughout the day.

Janine H.

Verified Customer



Gut & Digestion

Gut & Digestion is the foundational supplement included in the Digestive Stack. It provides unique and essential support found in grass-fed and grass-finished tripe (stomach), intestines, pancreas, liver, and spleen.

Organ Nutrients

Tripe is a robust source of the mineral manganese, and dietary manganese can decrease intestinal permeability and enhance microbiota composition.

Liver is the single most nutritious natural food on the planet, both in terms of density and variety. It is incredibly rich in vitamins, minerals, peptides and enzymes to support immune, reproductive, digestive, musculoskeletal, and nervous health.

Pancreas contains enzymes such as amylase, lipase, and trypsin, as well as B5, B12, and selenium to support digestion and the gut microbiome.

Intestines are rich in a wide range of peptides, enzymes, vitamins and minerals that support optimal gut health and digestion. Their mucosal lining contains compounds aiding in nutrient absorption and barrier protection.

Spleen has high levels of heme iron, the most bioavailable form of iron, to support the nervous system and immune health. It is also rich in niacin, which is crucial for metabolic health, and selenium, a key player in thyroid function.

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  • 2

    Grass-Fed Colostrum

    Grass-Fed Colostrum includes grass-fed and finished colostrum. It provides support for gut healing, exercise recovery, and immune function.

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  • 3

    Histamine & Immune

    Histamine & Immune includes thymus, lung, spleen, liver, and kidney and helps to stimulate your immune fighting cells to defeat viruses and pathogens.

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Try the Stack
Digestive Stack


The combined power of Gut & Digestion, Grass-Fed Colostrum, and Histamine & Immune
includes essential nutrients.

Alpha defensins 5 and 6

Antimicrobial peptides involved in the immune response.

Gastrin-releasing Peptide

Also known as GPR, this peptide is found in pancreatic tissue and supports digestive processes by stimulating the release of enzymes, bicarbonate, and fluids.


A vital mineral involved in antioxidant defense (Super Oxide Dismutase), thyroid function, bone health, blood sugar regulation, as well as wound healing and collagen production.


A critical mineral for thyroid function (iodothyronine deiodinanses) and immune health/antioxidant defense (glutathione peroxidase, thioredoxin reductase).


Necessary for proper cell division, red blood cell production, neurotransmitter formation, and optimal exercise performance.

Hepcidin Peptide

A peptide directly involved in iron metabolism as well as the innate immune response.

Splenin, Tuftsin and Splenopentin Peptides

Exclusively found in splenic tissue which enhances immune function.

Ergothioneine Peptide

An amino acid found in liver, kidney, and bone marrow found to support detoxification and longevity pathways.

Liver Expressed Antimicrobial Peptide

Also known as LEAP-2. This peptide is involved in immune response and glucose metabolism.


A B3 vitamin essential for cardiovascular health, mood, cognition, and energy.

Copper, biotin, and CoQ10

Crucial for metabolism, mood, and energy, as well as the health of skin, hair, and nails.

Riboflavin, folate, and choline

Essential for red blood cell formation, brain, reproductive, and cardiovascular health.

Vitamins A, D, E, K2

Get these vitamins in a super bioavailable form that play critical roles in overall immune and bone health.

Lipase, Protease, and Amylase

Enzymes to help break down macronutrients like fat, protein and carbohydrates.

Colipase, Trypsin, and Pancreatic Peptide

Support the activation of enzymes needed to break down protein and help with food allergies by improving digestion.

Immunoglobulins (IgA, IgG, IgM, IgD, IgE)

Antibodies that play an integral role in immune defense mechanisms.

Transforming Growth Factors - Alpha & Beta (TGF-a & b)

Stimulates growth and differentiation of various connective tissue, including bone and cartilage, and is crucial for wound healing, gut healing, as well as DNA synthesis and repair.

Proline-rich Polypeptides (PRPs), like Colostrinin

Crucial for thymus gland support (command center for immune defense), growth and differentiation of B lymphocytes, and modulating the immune response.

Insulin-like Growth Factor- I & II (IGF-I & -II)

Found abundantly in colostrum and helps balance blood sugar, increase HDL, build lean muscle, and aids in the metabolism of protein, fat, and carbs.


Crucial iron-binding protein which helps starve bacteria of iron needed to reproduce and modulates a powerful immune response to invading organisms.

Epithelial Growth Factor (EGF)

Crucial for skin health and wound healing.

Colony-stimulating Factor-1 (macrophage colony-stimulating factor)

Stimulates stem cells to differentiate into macrophages — immune cells that "eat" or clean up dead pathogens/debris from inflammation and infection.

Cytokines, Interleukins, Interferons, and Lymphokines

Cell signaling molecules crucial for balancing inflammation and boosting T cell activity as well as the production of antibodies. These communication molecules have been identified as important molecules for treatment of cancer, pain, and various diseases.


Identified through research to induce selective apoptosis (cell death) of cancer cells and highly effective against various viruses.

Thymopoietin and Thymulin

Essential peptides for immune cell programming and activation of the immune system.

Diamine Oxidase (DAO)

Supports overall immune health, histamine metabolism, and digestion.

Thymosin fraction 5 and thymosin alpha-1

Peptides that are potent stimulators of the immune system and enhance immune cell functioning.

Thymosin beta-4

Important peptide in stimulating pituitary hormones essential for reproductive function.

Thymic humoral factor

Increases the immune response, especially to viruses.

Kidney-specific peptides

Reduce the concentration of oxalates in the urine and calcium deposits in the renal tissue, as well as preventing free-radical induced damage.

Bovine Beta-Defensins and Cathelicidins

Peptides known to have broad antimicrobial roles in the body.

Heme iron

Crucial for brain health, energy, and exercise performance, as well as immune function.

I can feel my entire system getting a reboot from these amazing supplements.

Jaclyn F.

Verified Customer

Digestive Stack

  • 1x Gut & Digestion
  • 1x Grass-Fed Colostrum
  • 1x Histamine & Immune

Free U.S. shipping over $80


  • How to Use

    Take 6 capsules, once daily, of each supplement. If you’re new to taking organ supplements, start with 1-2 capsules of each daily for the first week before increasing by one capsule daily. Consistent long-term use provides the best results.

  • Benefits

    Our Digestive Stack aims to optimize gut and digestive health, and provides comprehensive nutritional support for a strong and healthy gut.

  • Quality

    Rigorous third-party testing by independent labs during and after manufacturing. Quality and purity information can be provided upon request.

  • Dietary

    100% additive, hormone, allergen, antibiotic, pesticide, and GMO-free. Freeze-dried. Pure nose-to-tail nourishment.

Digestive Stack Questions

This stack is ideal for anyone struggling with gastrointestinal and digestive issues, providing comprehensive nutritional support for a strong and healthy gut.

The combination of products in this stack work synergistically to deliver a wide range of highly bioavailable Vitamins, Minerals, Peptides, and Essential Fatty Acids that rejuvenate your gut, supporting both digestive function and a healthy immune response.


Frequently Asked Questions


Why Heart & Soil

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