Vitamins, minerals, and botanicals that strengthen immune defenses and support the body's natural resistance.
32 itemsA focused look at how mushroom beta‑glucans interact with the immune system and why hot‑water vs dual extraction changes their effects, with evidence from mechanistic studies and human trials.
A focused look at the ITP rapamycin mouse studies—what they showed about mTOR and longevity, how they relate to caloric restriction, translation to humans and dogs, and why researchers remain cautiously optimistic.
Research-backed look at how gut microbiome diversity relates to autoimmune risk, mechanisms, early-life factors, diet patterns, and traditional perspectives.
A focused evidence review of turkey tail mushroom’s PSK/PSP and how these protein-bound polysaccharides may modulate the gut–immune axis, with clinical insights, mechanisms, extraction considerations, and TCM context.
Confused about zonulin tests for leaky gut? Learn what zonulin is, why commercial tests are debated, and how results relate to true intestinal permeability.
Zonulin biology is real, but commercial zonulin tests for “leaky gut” are inconsistent. Here’s what research says about tight junctions, test validity, clinical relevance, and evidence-based ways to support the gut barrier.
Research suggests zinc, especially as well-formulated lozenges taken early, may shorten the common cold. Learn how zinc supports immunity, which formulations matter, safety notes, and traditional zinc-rich foods.
Do zinc lozenges really shorten colds? An evidence-based look at timing, formulation, benefits, and safety—without dosing advice.
A focused look at the NIA Interventions Testing Program’s findings on rapamycin, how it intersects with caloric restriction and mTOR, current human and dog trials, risks, and why researchers remain cautiously optimistic.
A focused review of rapamycin in the NIA Interventions Testing Program (ITP) and what the robust mouse data mean—mechanisms via mTOR, links to caloric restriction, early human and dog studies, and why researchers are cautiously optimistic.
A focused look at L‑glutamine’s role in athlete immune health, why gut barrier support may matter more than colds prevention, and how traditional broth wisdom aligns with modern research.
Zonulin tests are widely marketed for “leaky gut,” but research shows analytical limitations and unclear clinical value. Learn what serum and stool zonulin really measure, how they compare with lactulose–mannitol testing, and what conventional medicine accepts versus what remains debated.
Do zinc lozenges shorten a cold? Research suggests properly formulated zinc lozenges may reduce duration if started early. Learn mechanisms, evidence, and cautions.
A focused look at rapamycin and the mTOR pathway in longevity: ITP mouse findings, how caloric restriction converges on mTOR, the status of human and dog trials, potential risks, and natural mTOR modulators—why the field is hopeful yet cautious.
A focused review on L‑glutamine and exercise‑induced gut permeability in athletes—mechanisms, small RCTs, immune links, and traditional bone broth context.
Learn how hot water and dual extracts of medicinal mushrooms shape beta-glucans, triterpenes, and immune modulation—plus evidence on turkey tail PSK/PSP and reishi.
Are zonulin blood or stool tests accurate for “leaky gut”? This evidence-based review explains what zonulin measures, how it compares with lactulose–mannitol testing, and what research says about barrier-supportive strategies.
A focused, evidence-based look at zinc for the common cold—how it may work, what trials show, why lozenge formulation and timing matter, and key safety and balance considerations.
The updated hygiene (Old Friends) hypothesis explains how reduced microbial diversity may shape gut–immune development and influence autoimmune risk in T1D, MS, RA, and Hashimoto’s.
A focused, evidence-based look at turkey tail’s PSK and PSP extracts, how their beta-glucans may modulate immunity, and what clinical research suggests about using them as adjuncts to therapy.
Many people order serum or stool zonulin tests to assess “leaky gut.” This focused review explains what zonulin does, why assays are controversial, how results compare with validated permeability tests, and practical, evidence-informed alternatives.
A focused look at the Interventions Testing Program (ITP) mouse studies of rapamycin, how they link to mTOR and caloric restriction, and what they do—and don’t—imply for human longevity.
A focused, evidence-based review of L‑glutamine for exercise‑induced gut permeability in athletes, bridging modern research with traditional nutrition perspectives.
A focused look at how mushroom beta‑glucans engage Dectin‑1 and other receptors to modulate innate immunity, why extraction methods matter, and where human evidence stands.
A group of eight B vitamins that work together to support energy metabolism, nervous system function, and red blood cell production.
A group of flowering plants in the daisy family traditionally used by Native Americans to support immune function and fight infections.
A dark purple berry (Sambucus nigra) traditionally used to support immune function and shorten duration of colds and flu.
Live beneficial bacteria that support gut microbiome health, digestion, and immune function.
A water-soluble antioxidant vitamin essential for immune function, collagen synthesis, and iron absorption.
A fat-soluble vitamin produced by the skin in response to sunlight, critical for bone health, immune function, and mood regulation.
Vitamin K2 (menaquinone) is a fat-soluble vitamin that plays a critical but often overlooked role in calcium metabolism. While vitamin K1 (phylloquinone, found in leafy greens) primarily supports blood clotting, K2 activates proteins that direct calcium to appropriate destinations — specifically, osteocalcin (which deposits calcium into bones and teeth) and matrix Gla-protein (MGP, which prevents calcium from depositing in arteries and soft tissues). The most important forms are MK-4 (short-acting, found in animal products like egg yolks and butter from grass-fed animals) and MK-7 (long-acting, produced by bacterial fermentation, highest in natto — a Japanese fermented soybean dish). MK-7 has a much longer half-life (approximately 72 hours vs. 1-2 hours for MK-4), making it more practical for daily supplementation. The clinical significance of K2 has grown considerably as research reveals the "calcium paradox" — the observation that many people simultaneously have too little calcium in their bones (osteoporosis) and too much in their arteries (vascular calcification). K2 appears to resolve this paradox by ensuring calcium goes where it belongs.
An essential trace mineral critical for immune function, wound healing, and protein synthesis.
