Immune System Boosters

Immune support that starts with what actually has the evidence: vitamin C, vitamin D and zinc, each with an EU-authorised role in the normal function of the immune system. Alongside them sit the traditional favourites, Reishi, Chaga and the wider mushroom range. If you're in Ireland, vitamin D is the one worth knowing about, because we get limited sun for a good chunk of the year. For the rest of it, here's our honest guide to immune season. Order by 4pm and we'll ship it the same day from Dublin.

Building your immune support

Start with the three that hold authorised claims

Vitamin C, vitamin D and zinc each contribute to the normal function of the immune system. That is an EU-authorised claim, which is about as settled as this area gets, and it makes them the sensible base for most people.

Zinc with Vitamin C

Two of the three in a single capsule. Vitamin C's role is well characterised: a 2017 review in Nutrients concluded it supports several functions of both the innate and adaptive immune system. Shop Zinc with Vitamin C.

Vitamin D, the one that matters most here

Ireland gets limited sunlight for a large part of the year, so running low over winter is common. Beyond the authorised immune claim, a large 2017 analysis in the BMJ found vitamin D supplementation reduced the risk of acute respiratory infections, with the clearest benefit in people who were low to begin with. Shop Vitamin D3.

Reishi, Chaga and the mushroom range

Reishi carries over 2,000 years of use in East Asian herbal medicine. Chaga grows on birch trees across Siberia and Northern Europe, and ours is full fruiting body. Both are dual-extracted, and both are long-standing traditional staples through the colder months. Reishi, Chaga, or the full mushroom range.

When to start

Ahead of winter rather than during it. Demand climbs from autumn, so late summer into early autumn is the time to get vitamin D and the basics in place. Order by 4pm and we will ship it the same day from Dublin.

Frequently Asked Questions
What actually supports the immune system?

Sleep, a varied diet and daylight do the heavy lifting. On top of that, vitamin C, vitamin D and zinc are the nutrients with EU-authorised roles in normal immune function, which is why they are the sensible base for most people.

Do I really need vitamin D in Ireland?

It is the most defensible supplement for anyone living here. Ireland gets limited sun for a large part of the year, so running low over the winter months is common. Many people top up from about October onwards.

Where do mushroom supplements fit in?

They are the traditional side of the shelf. Reishi and Chaga have centuries of use behind them and remain popular through the colder months, particularly as an evening ritual. Take the vitamins as your base and add mushrooms because you enjoy them.

When should I start for winter?

Ahead of it rather than during. Demand climbs from autumn, so late summer to early autumn is a sensible time to get vitamin D and the basics in place rather than waiting until you are already run down.