Over the last two years, there’s been a rise in “immune-boosting” foods, supplements and trends. Today's guest, immunologist Dr. Jenna Macciochi, believes the immune system doesn’t need boosting. Instead, it should be balanced.
In this episode, Jenna - a Senior Lecturer in Immunology at the University of Sussex - reveals how your immune system is your body’s housekeeper. Jenna highlights the case for the ‘good bugs’ in our gut microbiome, the role of micronutrients and how our immune system isn’t born, but made.
We'll also tackle the age-old question: do we really need Vitamin C supplements?

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Timecodes:
01:21 Quickfire questions
04:51 What is the immune system?
06:49 How your immune system works
09:35 What are natural killer cells?
14:18 Is your immune system inherited?
16:42 The impact of sleep and stress 
19:53 Cancer and immunotherapy
28:23 This can trigger inflammation
30:25 Are vitamin C supplements worth it?
31:30 Foods to empower your immune system
40:10 How inflammation affects your brain
44:10 New science of the impact of stress
48:52 Immunity and your body clock

📚 Get Jenna's book Your Blueprint for Strong Immunity

📚 Books by our ZOE Scientists:
The Food For Life Cookbook
Every Body Should Know This by Dr Federica Amati
Food For Life by Prof. Tim Spector

Mentioned in today’s episode:
“Immune Boosting” in the time of COVID: selling immunity on Instagram (2020), published in Allergy, Asthma & Clinical Immunology
Vitamin C for preventing and treating the common cold (2013), published in Cochrane Database of Systematic Reviews
Effects of stress on immune function: the good, the bad, and the beautiful (2014), published in Journal of Immunology Research

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Episode transcripts are available here.