Do antiviral nasal sprays really work?

plus, which is the healthiest tinned fish?

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Can’t view the email properly? View it in your browser Home | Help centre |  Log in Healthy Living This can be a challenging time to keep on top of your wellbeing, and also one in which you're absolutely bombarded by email marketing. Hopefully our update will help you cut through the noise to make better buying choices and stay well this winter. We've been busy reviewing popular festive picks, so check out our updated reviews of foot spas and hot brushes – and our first ever test of perfumes – for gifts that won't disappoint. But we're here to keep you on track health-wise, too. Our researcher Martha has spent many hours analysing supermarket tinned fish to uncover the healthiest options. Plus, we've got updated advice on antiviral nose sprays and how to save on cold and flu medicines. Jessica Carson Food & Health Editor Do antiviral nose sprays work? We've scrutinised the latest science behind cold and flu defence sprays, with insights from leading experts, to find out if it's worth trying an antiviral spray to stave off winter bugs. Get the facts Exclusive newsletter reader offer Get a £20 Amazon gift card when you buy an annual Which? Full Access, Digital or Magazine membership from £39.50.* This offer ends midnight on 3 December 2025. Find out more To get the offer, click the link above to purchase, then a link for the voucher will be sent via email within one month of purchase. You must retain your membership for a minimum of 28 days.. T&Cs apply* Which is the healthiest tinned fish? Mackerel, sardines or salmon? This cupboard staple is a convenient source of protein, but which is the best source of omega-3 essential fatty acids? We reviewed more than 90 products to find out. Reel in our top picks LOGIN REQUIRED Best perfumes Find the perfect perfume for Christmas gifting or to treat yourself – we asked more than 40 people to 'blind-smell' scents to help us uncover the best for both men and women. Show-stopping scents Best sourdough bread taste test Find out which supermarket sourdough rose above the branded options in our taste tests, plus a nutritional breakdown so you can find the right choice for you. Loaves you'll love How to save on cold & flu meds From painkillers to sore throat and cough remedies, we reveal the winter medicines you do and don't need, plus how to get them cheapest. Stay healthy for less Other top stories this week 1 Scam ads on social media falsely claim hearing aids are endorsed by Which?. Don't be fooled – here's how to spot a dodgy ad 2 LOGIN REQUIRED We've found the best balms to banish dry lips this winter, plus we reveal the expert tips to get the most from them 3 LOGIN REQUIRED Smoked salmon is a Christmas classic. We reveal the tastiest supermarket options, and Which? nutritionist Shefalee Loth dishes up the health benefits 4 Lion's mane, chaga and reishi mushroom supplements – are they worth the hype? Get the truth about the 'shroom boom 5 LOGIN REQUIRED The worst foot spas are little better than a bucket of hot water. Treat your feet with the top models from our tests 6 LOGIN REQUIRED Our tests have uncovered the best hot brushes for salon-style results, whatever your hair type 7 Do LED masks really work to rejuvenate skin? We're independently testing them to find out, get a progress update here 8 Which oils are healthiest for everyday cooking? We asked the experts to bring you the facts, plus five things you need to know when using them 9 Find out if you're eligible for free Covid and flu jabs on the NHS – and for those who aren't, here's the cheapest places to get yours privately What we learned from testing this week "We scrutinised more than 90 tinned fish products to uncover which offered the highest omega-3 levels – and the variation was startling. Some tins of mackerel served up more than 4,700mg per 100g, while the lowest contained just 700mg – over six times less." Martha Roberts Senior food and wellbeing researcher Popular reviews and recommendations We're always on the lookout for excellent health and wellbeing products to improve your life. We've scoured the Black Friday sales to uncover the genuine deals on mattresses and sleep essentials for more restful nights, plus top offers on beauty products, and dehumidifiers to boost air quality at home. Mattresses Sleep essentials Beauty products Dehumidifiers Podcast catch up: vitamin D supplements Does everyone need to take vitamin D supplements? Listen time: 24 minutes This deep dive with our experts explains why vitamin D supplements are recommended for everyone in the UK winter, what to know and the risks of overdoing it. Plus, our top-rated picks. Listen now How useful would you rate the information in this email? *Offer T&Cs Members must click on the link included in the ad and purchase through the link supplied. Offer ends at midnight on 3 December 2025. Subscription auto-renews at £79 for Which? Digital and Which? Magazine, and £99 for Which? Full Access. Members must retain the Which? annual subscription for a minimum of 28 days. Eligible members will receive a £20 Amazon.co.uk gift card within one month of purchase via the email address used to create their Which? account. 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