“This unique formula of immune-boosting superfoods is GUARANTEED to stop viruses in their tracks!”
Seen something like that before and wondered if there’s good science behind it?
Look no further. Swipe through for our quick guide to immune boosting, ft. vitamins A, C, and D, Zinc, Ginger, Echinacea and Turmeric.
The short answer is that no single ingredient will ever be a magic bullet that cures everything.
The *real* secret to a healthy immune system is no secret at all:
Good sleep, regular exercise, and a varied, balanced diet.
What other health fads do you want us to tackle next? Let us know!
Sources
- Covid-19: Can ‘boosting’ your immune system protect you? | BBC | April 2020
- How to boost your immune system | Harvard Health
- Vitamin C biosynthesis | Learn Science at Scitable | Scitable by Nature Education | 2010
- Vitamin C for preventing and treating the common cold | Cochrane | January 2013
- Link not available anymore
- Claims vitamin C can prevent or cure COVID-19 unfounded, experts warn | CTV News | March 2020
- Vitamin A | The Nutrition Source
- Mega doses of retinol: A possible immunomodulation in Covid‐19 illness in resource‐limited settings | Reviews in Medical Virology | December 2020
- Vitamin A in resistance to and recovery from infection: relevance to SARS-CoV2 | British Journal of Nutrition | January 2021
- Vitamin A for measles in children | Cochrane | October 2005
- Vitamin D blood levels of Canadians | Government of Canada
- The vitamin D dilemma: How much should we be taking? | The Globe and Mail | March 2015
- Vitamin D supplementation for the treatment of COVID‐19: a living systematic review | Cochrane Library | May 2021
- COVID-19 rapid guideline: managing COVID-19 | NCBI Bookshelf | May 2025
- Vitamin D: The truth about an alleged Covid ‘cover-up’ | BBC News | April 2021
- Vitamin D | Government of Canada
- Guidelines for Canadian Drinking Water Quality: Guideline Technical Document – Zinc – Canada.ca
- Do vitamin D, zinc, and other supplements help prevent COVID-19 or hasten healing? | Harvard Health | April 2021
- Link not available anymore
- Zinc and Your Health | The nutrition Source
- Zinc for the common cold? Not for me | Harvard Health | February 2011
- Does ginger prevent or cure COVID-19? | National Academies | June 2020
- Ginger: Usefulness and Safety | NCCIH
- Link not available anymore
- Echinacea for preventing and treating the common cold | Cochrane | February 2014
- Echinacea | Icahn School of Medicine at Mount Sinai | January 2003
- 10 Health Benefits of Turmeric and Curcumin | Healthline | July 2025
- What Happens to Your Immunity When You Take Turmeric and Vitamin D Together | January 2026
- The Impact of Curcumin on Immune Response: An Immunomodulatory Strategy to Treat Sepsis | International Journal of Molecular Sciences | 2022
- Treatment of the common cold with herbs used in Ayurveda and Jamu: monograph review and the science of ginger, liquorice, turmeric and peppermint | Drugs in Context | 2023
- Effects of Highly Bioavailable Curcumin Supplementation on Common Cold Symptoms and Immune and Inflammatory Functions in Healthy Japanese Subjects: A Randomized Controlled Study | Journal of Dietary Supplements | March 2023
- A Triple-blind randomized controlled trial on the effects of turmeric versus ginger on inflammatory biomarkers in patients with COVID-19 | Scientific Reports | August 2025
- Turmeric Benefits | Johns Hopkins Medicine | April 2026
- The Essential Medicinal Chemistry of Curcumin: Miniperspective | Journal of Medicinal Chemistry | January 2-17
- A Unifying Perspective in Blunting the Limited Oral Bioavailability of Curcumin: A Succinct Look | Bentham Science | October 2022
- Curcumin, an active component of turmeric: biological activities, nutritional aspects, immunological, bioavailability, and human health benefits – a comprehensive review | Frontiers in Immunology | August 2025
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