How can I support hay fever naturally?

Guest blog written by Andrea Hardy (Andrea Hardy Nutrition)

If you’re reading this with streaming eyes, a perpetually blocked nose, and a sneezing fit that seems to strike at the most inconvenient moments, I want you to know: I genuinely understand. I’ve lived with hay fever for over 40 years. For much of that time, it was simply something I endured – an annual rite of passage that arrived with the warmer weather and made life considerably less pleasant.

But in the last two years, I’ve noticed that something has shifted for me. My symptoms have reduced significantly – and at a time when hay fever appears to be getting worse for more and more people, with increasing numbers being diagnosed each year. As a registered nutritional therapist, I’ve been reflecting on what I’ve changed, and I want to share that with you here.

A quick and important caveat before we dive in: if you’re already deep in your hay fever season, some of these changes may not deliver dramatic results overnight. The body takes time to respond. But start now, build these habits consistently, and you’ll be putting yourself in a much stronger position for next year, and for your health in general.

What is hay fever?

Hay fever – or seasonal allergic rhinitis, to use its formal name – is an immune response to pollen. When pollen enters the body, it’s mistakenly identified as a threat and histamine is released, triggering those all-too-familiar symptoms.

Despite its name, hay fever has nothing to do with hay – and doesn’t cause a fever.

The question worth asking, though, is: why does one person’s body react dramatically while another’s barely notices? The answer lies in a combination of factors, many of which we have more influence over than we might think.

7 ways to support hay fever naturally

If you suffer from these symptoms, it’s totally understandable to want a quick fix. While antihistamines can help with short-term relief, they’re not actually addressing the underlying reason why you get hay fever in the first place. And they can come with some unwanted effects like headaches, dry mouth, stomach upset and drowsiness.

If you want to reduce the frequency and severity of symptoms, here’s what I recommend:

1. Eat to calm inflammation

Hay fever is, at its core, an inflammatory response – so it follows that a diet high in pro-inflammatory foods (think refined sugars, ultra-processed foods, and excess alcohol) will only add fuel to the fire.

I’m not suggesting you give up all life’s pleasures. I certainly haven’t given up cake, and I have no intention of doing so! But reducing the overall load on the body through a diet rich in vegetables, oily fish, wholegrains, legumes, nuts, seeds, and quality protein can make a real difference over time.

Include foods rich in omega-3s and polyphenols to calm your immune system and dampen inflammation:

Oily fish like salmon, sardines and mackerel
Flaxseeds, chia seeds
Colourful vegetables and berries
Turmeric, ginger, kale, rocket and Swiss chard

2. Be mindful of high-histamine foods

This is something many people have never considered: the foods we eat can contribute to our overall histamine load. If the body is already working hard to deal with histamine from pollen exposure, consuming lots of high-histamine foods can tip us over the edge.

Foods that tend to be high in histamine or that encourage its release include:

Drinks – alcohol (especially red wine, beer, and champagne); coffee, black/green tea
Fermented foods such as sauerkraut, aged cheese, cured meats, and vinegar
Tomatoes, spinach, aubergine, avocado, bananas, strawberries and citrus fruits
Leftovers – histamine increases as food sits

You don’t need to eliminate these foods entirely, but during peak pollen season, being more mindful of your intake can be worthwhile. And cutting back on alcohol in particular – which both raises histamine and disrupts sleep – is one of the more impactful changes you can make.

3. Look after your gut

Around 70–80% of the immune system lives in the gut, so it’s no surprise that gut health and allergic conditions are closely linked. A diverse, fibre-rich diet that supports a healthy gut helps your body keep its response to allergens in better balance over time. Think:

Plenty of plants in as many colours as possible
Fermented foods such as live yoghurt and kefir (if these are well tolerated – see above re: histamine) to introduce some helpful bacteria
Prebiotic fibres such as leeks, onions, asparagus, oats and apples to feed those good bacteria
Minimise the ultra-processed foods that feed the less helpful bacteria.

If you’re prone to bloating or IBS-type symptoms, start slowly and observe how you feel.

4. Love your liver

The liver is one of the body’s most hardworking organs, and when it comes to hay fever, it plays a role that’s often overlooked: it’s responsible for breaking down and clearing excess histamine.

When the liver is sluggish or overburdened – often from too much alcohol, sugar or ultra-processed food – it’s less able to do this job efficiently, which can mean symptoms feel worse.

Supporting your liver doesn’t have to be complicated. Some simple ways to give it a helping hand:

Cut back on alcohol – even reducing intake during peak season can make a difference.
Eat plenty of cruciferous vegetables such as broccoli, cauliflower, cabbage and Brussels sprouts. These contain compounds that actively support the liver’s natural detoxification process.
Include garlic and onions regularly – both support liver function.
Stay well hydrated. Water is essential for the liver to process and flush out waste.
Start the day with warm water and a slice of lemon. A small habit with a gentle liver-supportive effect.

5. Optimise key nutrients

Some nutrients play a direct role in how the body handles histamine and keeps the immune system on an even keel:

Vitamin C – a natural antihistamine and antioxidant. Good lower-histamine sources include broccoli, courgette, cauliflower, sweet potato, and kale. Aim for six or seven vegetables and two portions of fruit a day. This can be easier than it sounds if you pop a few into a morning smoothie.
Quercetin – a natural plant compound that helps to calm the cells responsible for releasing histamine. It’s found in red onions, apples, capers, and kale.
Zinc – important for keeping the immune system balanced. Good sources include pumpkin seeds, meat, shellfish, and legumes.
Vitamin D – low levels are linked to worsening allergic symptoms. It’s worth getting your level tested before you start supplementing. I test mine twice a year and supplement based on my result, aiming to keep it in a good range all year round.

6. Prioritise sleep, stress and hydration

Nutrition is important, but it doesn’t exist in isolation. Several other everyday factors can significantly influence how the body responds to pollen:

Sleep – poor sleep drives inflammation. Getting consistent, good-quality sleep helps your body manage its response to allergens much more effectively.
Stress – ongoing stress raises cortisol, which over time can throw the immune system off balance and make symptoms worse. This is easier said than done, of course, but even small, consistent habits (gentle movement, time outdoors, proper rest) can make a real difference.
Hydration – staying well hydrated supports the mucous membranes in your nose and throat, which act as a physical barrier against pollen. Aim for around 1.5–2 litres of water a day, more in warmer weather or if you’re active.

7. Try nettle tea

Stinging nettle (Urtica dioica) has a long history of traditional use for hay fever and there is some research to support its use as a natural antihistamine.

I try to drink nettle tea regularly (two to three cups a day, starting a couple of weeks before the season begins) and find it a pleasant change from my Earl Grey and rooibos. Why not give it a try?

The bigger picture

What I love most about nutritional therapy is that it doesn’t just look at symptoms in isolation. It asks why the body is struggling in the first place, and then works to address that. Hay fever is a sign that the immune system is overreacting, and there are many nutritional and lifestyle changes we can make to help bring it back into balance over time.

The changes I’ve described aren’t a quick fix, and I won’t pretend otherwise. But with over 40 years of hay fever, followed by two years of noticeably reduced symptoms, something is clearly working.

Connect with Andrea Here:

If you’re curious to explore what a more personalised approach might look like for you, you’re welcome to find out more about my work at www.andreahardynutrition.co.uk

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