People who eat two portions of fish a week are at an increased risk of developing malignant melanoma, a study suggests.
Britain's National Health Service recommends eating at least two portions of fish a week, including one of oily fish, with a portion weighing about 140 grams.
But now researchers in the US have warned this amount may be putting people at risk of malignant melanoma, the most deadly form of skin cancer.
Other experts said fish was an important, healthy food and there was no need to stop eating it.
In the research, experts from Brown University found that people whose typical daily intake of fish was 42.8g, equal to about 300g a week, had a 22 per cent higher risk of malignant melanoma than those whose typical daily intake was just 3.2g.
Those eating more fish also had a 28 per cent increased risk of developing abnormal cells in the outer layer of the skin only – known as Stage 0 melanoma or melanoma in situ, and also referred to as pre-cancer.
The findings were based on a study of 491,367 US adults and published in the journal Cancer Causes & Control.
Those in the study were aged 62 years on average and reported how often they ate fried fish, non-fried fish and tuna during the previous year, as well as portion sizes.
The researchers then calculated the frequency of new melanoma cases that developed over 15 years using data obtained from cancer registries.
They took into account factors that could influence the results, such as people’s weight, whether they drank alcohol or smoked, diet, family history of cancer and average UV radiation levels in their local area.
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Overall, 5,034 people (1 per cent) developed malignant melanoma during the study period and 3,284 (0.7 per cent) developed Stage 0 melanoma.
A breakdown of the results showed that total fish intake was linked to higher risks.
Meanwhile, people whose typical daily tuna intake was 14.2g had a 20 per cent higher risk of malignant melanoma, compared with those with a typical intake of 0.3g.
Eating 17.8g of non-fried fish a day was associated with an 18 per cent higher risk of malignant melanoma and a 25 per cent higher risk of Stage 0 melanoma, compared with 0.3g.
But no significant link was found between eating fried fish and skin cancer.
Author Dr Eunyoung Cho said previous studies had been inconsistent.
“Our findings have identified an association that requires further investigation," Dr Cho said.
“We speculate that our findings could possibly be attributed to contaminants in fish, such as polychlorinated biphenyls, dioxins, arsenic and mercury.
“Previous research has found that higher fish intake is associated with higher levels of these contaminants within the body and has identified associations between these contaminants and a higher risk of skin cancer.
“However, we note that our study did not investigate the concentrations of these contaminants in participants’ bodies and so further research is needed to confirm this relationship.”
Other limits to the study included that experts did not account for some established risk factors for melanoma, such as mole count, hair colour, history of severe sunburn and whether people sunbathed or wore sun cream.
And average daily fish intake was calculated at the start of the study and may not represent how much people eat over the course of their lives.
“The authors found a higher intake of non-fried fish and tuna was associated with melanoma," said Dr Michael Jones, senior staff scientist in genetics and epidemiology at the Institute of Cancer Research, London.
"These results were statistically significant and therefore unlikely due to chance.
“It is possible people who intake more non-fried fish or tuna have other lifestyle habits that increase their risk of melanoma. The authors considered this and adjusted for some potentially confounding factors.
“However, as the authors acknowledge, this is an observational study and it is possible there are factors that the authors did not adjust for, or adjust for sufficiently well enough.
“The authors speculate that the association may be possibly due to contaminants in fish but they did not measure levels of these contaminants in the participants.
“No one study should be considered in isolation and further research is needed to see if the findings from this study are replicated in other populations and countries, where levels of contaminants may be different.
“A general healthy balanced diet should include fish and the results from this study do not change that recommendation.”
Dr Duane Mellor, senior lecturer at Aston Medical School, said: “The authors suggest that there could be a link between contaminants in the fish, which could increase risk of cancer, but this is likely to affect the risk of more than just skin cancers.
“This study does not have a clear mechanism of how fish intake could increase risk of melanoma – there is no clear evidence that eating fish can lead to an increased risk of developing skin cancer.
“It is important to remember eating two portions of fish a week … can be a way of including important nutrients such as Omega-3 fatty acids as part of a healthy diet, and this study should not discourage people from including fish as part of a healthy diet.”
PROFILE OF SWVL
Started: April 2017
Founders: Mostafa Kandil, Ahmed Sabbah and Mahmoud Nouh
Based: Cairo, Egypt
Sector: transport
Size: 450 employees
Investment: approximately $80 million
Investors include: Dubai’s Beco Capital, US’s Endeavor Catalyst, China’s MSA, Egypt’s Sawari Ventures, Sweden’s Vostok New Ventures, Property Finder CEO Michael Lahyani
Some of Darwish's last words
"They see their tomorrows slipping out of their reach. And though it seems to them that everything outside this reality is heaven, yet they do not want to go to that heaven. They stay, because they are afflicted with hope." - Mahmoud Darwish, to attendees of the Palestine Festival of Literature, 2008
His life in brief: Born in a village near Galilee, he lived in exile for most of his life and started writing poetry after high school. He was arrested several times by Israel for what were deemed to be inciteful poems. Most of his work focused on the love and yearning for his homeland, and he was regarded the Palestinian poet of resistance. Over the course of his life, he published more than 30 poetry collections and books of prose, with his work translated into more than 20 languages. Many of his poems were set to music by Arab composers, most significantly Marcel Khalife. Darwish died on August 9, 2008 after undergoing heart surgery in the United States. He was later buried in Ramallah where a shrine was erected in his honour.
RESULTS
5pm: Maiden | Dh80,000 | 1,600m
Winner: AF Al Moreeb, Tadhg O’Shea (jockey), Ernst Oertel (trainer)
5.30pm: Handicap | Dh80,000 | 1,600m
Winner: AF Makerah, Adrie de Vries, Ernst Oertel
6pm: Handicap | Dh80,000 | 2,200m
Winner: Hazeme, Richard Mullen, Jean de Roualle
6.30pm: Handicap | Dh85,000 | 2,200m
Winner: AF Yatroq, Brett Doyle, Ernst Oertel
7pm: Shadwell Farm for Private Owners Handicap | Dh70,000 | 2,200m
Winner: Nawwaf KB, Patrick Cosgrave, Helal Al Alawi
7.30pm: Handicap (TB) | Dh100,000 | 1,600m
Winner: Treasured Times, Bernardo Pinheiro, Rashed Bouresly
The specs
Engine: 2.0-litre 4cyl turbo
Power: 261hp at 5,500rpm
Torque: 405Nm at 1,750-3,500rpm
Transmission: 9-speed auto
Fuel consumption: 6.9L/100km
On sale: Now
Price: From Dh117,059
The specs
- Engine: 3.9-litre twin-turbo V8
- Power: 640hp
- Torque: 760nm
- On sale: 2026
- Price: Not announced yet
The specs
AT4 Ultimate, as tested
Engine: 6.2-litre V8
Power: 420hp
Torque: 623Nm
Transmission: 10-speed automatic
Price: From Dh330,800 (Elevation: Dh236,400; AT4: Dh286,800; Denali: Dh345,800)
On sale: Now
Red flags
- Promises of high, fixed or 'guaranteed' returns.
- Unregulated structured products or complex investments often used to bypass traditional safeguards.
- Lack of clear information, vague language, no access to audited financials.
- Overseas companies targeting investors in other jurisdictions - this can make legal recovery difficult.
- Hard-selling tactics - creating urgency, offering 'exclusive' deals.
Courtesy: Carol Glynn, founder of Conscious Finance Coaching
2025 Fifa Club World Cup groups
Group A: Palmeiras, Porto, Al Ahly, Inter Miami.
Group B: Paris Saint-Germain, Atletico Madrid, Botafogo, Seattle.
Group C: Bayern Munich, Auckland City, Boca Juniors, Benfica.
Group D: Flamengo, ES Tunis, Chelsea, Leon.
Group E: River Plate, Urawa, Monterrey, Inter Milan.
Group F: Fluminense, Borussia Dortmund, Ulsan, Mamelodi Sundowns.
Group G: Manchester City, Wydad, Al Ain, Juventus.
Group H: Real Madrid, Al Hilal, Pachuca, Salzburg.
The specs: 2018 Audi RS5
Price, base: Dh359,200
Engine: 2.9L twin-turbo V6
Transmission: Eight-speed automatic
Power: 450hp at 5,700rpm
Torque: 600Nm at 1,900rpm
Fuel economy, combined: 8.7L / 100km
Match info
Karnataka Tuskers 110-3
J Charles 35, M Pretorius 1-19, Z Khan 0-16
Deccan Gladiators 111-5 in 8.3 overs
K Pollard 45*, S Zadran 2-18
Essentials
The flights
Emirates flies direct from Dubai to Seattle from Dh6,755 return in economy and Dh24,775 in business class.
The cruise
UnCruise Adventures offers a variety of small-ship cruises in Alaska and around the world. A 14-day Alaska’s Inside Passage and San Juans Cruise from Seattle to Juneau or reverse costs from $4,695 (Dh17,246), including accommodation, food and most activities. Trips in 2019 start in April and run until September.
UAE currency: the story behind the money in your pockets
The biog
Age: 59
From: Giza Governorate, Egypt
Family: A daughter, two sons and wife
Favourite tree: Ghaf
Runner up favourite tree: Frankincense
Favourite place on Sir Bani Yas Island: “I love all of Sir Bani Yas. Every spot of Sir Bani Yas, I love it.”
Our family matters legal consultant
Name: Hassan Mohsen Elhais
Position: legal consultant with Al Rowaad Advocates and Legal Consultants.
The Penguin
Starring: Colin Farrell, Cristin Milioti, Rhenzy Feliz
Creator: Lauren LeFranc
Rating: 4/5
What are NFTs?
Are non-fungible tokens a currency, asset, or a licensing instrument? Arnab Das, global market strategist EMEA at Invesco, says they are mix of all of three.
You can buy, hold and use NFTs just like US dollars and Bitcoins. “They can appreciate in value and even produce cash flows.”
However, while money is fungible, NFTs are not. “One Bitcoin, dollar, euro or dirham is largely indistinguishable from the next. Nothing ties a dollar bill to a particular owner, for example. Nor does it tie you to to any goods, services or assets you bought with that currency. In contrast, NFTs confer specific ownership,” Mr Das says.
This makes NFTs closer to a piece of intellectual property such as a work of art or licence, as you can claim royalties or profit by exchanging it at a higher value later, Mr Das says. “They could provide a sustainable income stream.”
This income will depend on future demand and use, which makes NFTs difficult to value. “However, there is a credible use case for many forms of intellectual property, notably art, songs, videos,” Mr Das says.
Why are asylum seekers being housed in hotels?
The number of asylum applications in the UK has reached a new record high, driven by those illegally entering the country in small boats crossing the English Channel.
A total of 111,084 people applied for asylum in the UK in the year to June 2025, the highest number for any 12-month period since current records began in 2001.
Asylum seekers and their families can be housed in temporary accommodation while their claim is assessed.
The Home Office provides the accommodation, meaning asylum seekers cannot choose where they live.
When there is not enough housing, the Home Office can move people to hotels or large sites like former military bases.
UAE currency: the story behind the money in your pockets
PSL FINAL
Multan Sultans v Peshawar Zalmi
8pm, Thursday
Zayed Cricket Stadium, Abu Dhabi
'HIJRAH%3A%20IN%20THE%20FOOTSTEPS%20OF%20THE%20PROPHET'
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COMPANY PROFILE
● Company: Bidzi
● Started: 2024
● Founders: Akshay Dosaj and Asif Rashid
● Based: Dubai, UAE
● Industry: M&A
● Funding size: Bootstrapped
● No of employees: Nine
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The years Ramadan fell in May
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%3Cul%3E%0A%3Cli%3ENever%20click%20on%20links%20provided%20via%20app%20or%20SMS%2C%20even%20if%20they%20seem%20to%20come%20from%20authorised%20senders%20at%20first%20glance%3C%2Fli%3E%0A%3Cli%3EAlways%20double-check%20the%20authenticity%20of%20websites%3C%2Fli%3E%0A%3Cli%3EEnable%20Two-Factor%20Authentication%20(2FA)%20for%20all%20your%20working%20and%20personal%20services%3C%2Fli%3E%0A%3Cli%3EOnly%20use%20official%20links%20published%20by%20the%20respective%20entity%3C%2Fli%3E%0A%3Cli%3EDouble-check%20the%20web%20addresses%20to%20reduce%20exposure%20to%20fake%20sites%20created%20with%20domain%20names%20containing%20spelling%20errors%3C%2Fli%3E%0A%3C%2Ful%3E%0A
Thank You for Banking with Us
Director: Laila Abbas
Starring: Yasmine Al Massri, Clara Khoury, Kamel El Basha, Ashraf Barhoum
Rating: 4/5
Director: Laxman Utekar
Cast: Vicky Kaushal, Akshaye Khanna, Diana Penty, Vineet Kumar Singh, Rashmika Mandanna
Rating: 1/5
What can victims do?
Always use only regulated platforms
Stop all transactions and communication on suspicion
Save all evidence (screenshots, chat logs, transaction IDs)
Report to local authorities
Warn others to prevent further harm
Courtesy: Crystal Intelligence
Living in...
This article is part of a guide on where to live in the UAE. Our reporters will profile some of the country’s most desirable districts, provide an estimate of rental prices and introduce you to some of the residents who call each area home.
Profile
Name: Carzaty
Founders: Marwan Chaar and Hassan Jaffar
Launched: 2017
Employees: 22
Based: Dubai and Muscat
Sector: Automobile retail
Funding to date: $5.5 million