Immune Support Stack
The most-searched immune combination — what the evidence actually supports.
Strong stack — well-matched with minor gaps.
What's in this stack
- Vitamin D37.5/10 evidence
Hormone-like vitamin that regulates 1,000+ genes — deficiency is widespread and linked to poor immunity, depression, and bone loss.
Typical dose: 2000-4000 IU daily
- Vitamin C8/10 evidence
Humans cannot synthesize this vitamin — required for collagen production, immune cell function, and iron absorption; athletes need more.
Typical dose: 500-1000mg
- Zinc8.5/10 evidence
Involved in 300+ enzymatic reactions — supports immune defense, testosterone production, wound healing, and sleep quality.
Typical dose: 15-25mg daily (a typical label dose, not the dose used in the cited trials, which used about 30 mg a day)
- Quercetin5/10 evidence
Flavonoid that modestly lowers blood pressure in pooled trials. Immune, allergy and anti-inflammatory claims rest on small or mixed trials.
Typical dose: 500-1000mg
What this stack covers
- Support immune system77% · via Zinc
1 documented interaction in this combination
The grade above measures how well this stack covers its goals — it does not account for these.
- Vitamin C + Quercetin (minor)
No clinical benefit or harm from taking them together has been established.
No change needed. They can be taken together or apart.
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