Immunity supplements reviewed for year-round immune defence using vitamins, minerals and herbal compounds
The most evidence-supported immune supplement ingredients include vitamin C (1000mg+ daily), vitamin D3, zinc, elderberry extract, andrographis, beta-glucans, and selenium. Vitamin D and zinc have the strongest evidence bases. High-quality immune supplements combine multiple synergistic ingredients at clinically studied doses.
Look for clinically studied ingredients at effective doses. Avoid proprietary blends that hide individual amounts.
Look for products made in FDA-registered, GMP-certified facilities for quality assurance and safety.
Strong supplements cite peer-reviewed studies. We reference PubMed and NIH sources in all our reviews.
Always speak with a healthcare professional before starting any supplement, especially with medications.
Side-by-side comparisons to help you choose the best option.