Weakened Immunity

Why it works: Very high vitamin C content. Camu-camu is one of the richest natural sources of vitamin C (ascorbic acid). Vitamin C is essential for immune function (neutrophil function, lymphocy...

Instructions: Common study forms and doses (examples from clinical trials):. • 100% juice — 70 mL/day (≈1,050 mg vitamin C) for 7 days.. • Inoue et al. (J Cardiol, 2008) used 70 mL/day of 100% c...

Warnings: Short summary: camu-camu is generally used as a dietary supplement and appears well tolerated in sho...

Studies: Key human studies and reviews:Inoue et al., J Cardiol (2008)...

Why it works: Polysaccharides (especially β-glucans) in Reishi interact with immune receptors (eg. Dectin-1, complement receptors) and can modulate innate immune cells (macrophages, dendritic ce...

Instructions: Common forms used in trials or practice. • Hot-water extracts / polysaccharide extracts (eg. Ganopoly®) — often used in clinical research for immune outcomes. ScienceOpen. • Dual (...

Warnings: Common adverse effects reported. • Generally well tolerated in many trials (extracts safe up to 12 m...

Studies: What the best evidence says (summary)Some randomized trials...

Why it works: Beta-glucan is effective for weakened immunity because it acts as an immunomodulator through multiple mechanisms. It binds to specific immune receptors including Dectin-1, compleme...

Instructions: Dosage Recommendations:. Clinical trials have used dosages ranging from 2.5-1000 mg daily over up to 6 and a half months, with beta glucans primarily benefiting the body by modulat...

Warnings: Safety Profile:. When taken by mouth, beta-glucans are commonly consumed in foods. Taking larger amo...

Studies: Major Clinical Trials:Two independent randomized, double-bli...

Why it works: Dry brushing is useful for exfoliation and may transiently increase superficial circulation — which could plausibly help lymph movement — but there is no good clinical evidence tha...

Instructions: Choose the right brush. Natural bristles, firm but not glassy-stiff; softer bristles if you have sensitive skin. Long-handled brushes help reach the back. GQ Healthline. Do it on d...

Warnings: Do not dry brush over broken, inflamed, sunburned, or infected skin — you can spread bacteria or wor...

Studies: a. Studies of manual lymphatic techniques / lymphatic pump t...

Why it works: Immunostimulatory activity in vitro. A detailed phytochemical analysis and cell-based work showed that aqueous infusions and fractions of G. aparine stimulate lymphocyte activity (...

Instructions: Infusion / tea (most common):. • – How: Use fresh or dried aerial parts. Typical recipe: ~1–2 teaspoons (or 2–3 g) dried herb per cup (250 mL) of hot water; steep 10–15 minutes (or...

Warnings: Pregnancy & breastfeeding: safety is unclear — standard guidance is to avoid or consult a provider b...

Studies: The human clinical evidence is very limited. Most supportive...

Why it works: Sunlight helps the immune system mainly by producing vitamin D in skin and by other UV-triggered immunomodulatory pathways. Most clinical evidence ties immune benefits to vitamin D...

Instructions: Important caveat: there’s no one exact “universal minutes” prescription — sun-to-vitamin-D conversion depends on skin tone, latitude, season, time of day, clothing, window glass, a...

Warnings: Skin cancer and UV harms (major risk). • UV radiation is a known carcinogen. Excess sun (especially...

Studies: Vitamin D’s immune role — mechanistic & clinical reviews...

Why it works: OLE’s major active compound oleuropein (and related phenolics such as hydroxytyrosol) shows antioxidant, anti-inflammatory, antiviral and some immunomodulatory effects in lab studi...

Instructions: Important: there is no single universally-accepted clinical dosing guideline for every condition. Below are commonly used regimens reported in trials, reviews, and clinical referen...

Warnings: Drug interactions (major): OLE can lower blood pressure and lower blood glucose — it may potentiate...

Studies: Selected clinical trials & trials registry entries:Rando...

Why it works: leuthero (Eleutherococcus senticosus, “Siberian ginseng”) has plausible immunomodulatory activity (mostly from polysaccharides and eleutherosides) supported by in-vitro, animal and...

Instructions: Common forms: dried root, powdered root, tincture/fluid extract, standardized dry extracts and capsules. Health-Canada’s regulatory monograph lists acceptable oral forms (dry root,...

Warnings: Pregnancy & breastfeeding: avoid unless under the care of a clinician — evidence is insufficient to...

Studies: Immunology / small human lab study (flow cytometry): A place...

Why it works: Polysaccharides / β-glucans: Chaga extracts contain polysaccharides (including β-glucans) that in vitro and in animal studies stimulate innate immune cells (macrophages, NK cells)...

Instructions: Caveat: There is no standardized clinical dose. Medical centers and evidence reviews say: if you plan to use chaga, treat it like a supplement — follow product labels and talk to y...

Warnings: Bleeding / anticoagulant effect: Chaga contains compounds that may affect platelet aggregation and c...

Studies: Main point: Most high-quality evidence is preclinical (in vi...

Why it works: Active compounds: Turkey Tail contains protein-bound polysaccharides (mainly PSK — “polysaccharide-K” — and PSP), and β-glucans. These molecules interact with immune receptors (eg....

Instructions: PSK (clinical oncology use in Japan): Many Japanese clinical trials used PSK 3.0 g/day (oral) as an adjuvant with chemotherapy after surgery for gastrointestinal cancers. This is t...

Warnings: Not a substitute for medical treatment: Most robust evidence is for PSK as an adjuvant in cancer the...

Studies: Major reviews & overviewsNCI PDQ (National Cancer Instit...