Sunday, June 15, 2025

Polaris of Enlightenment

The overlooked health benefits of cranberries

Published 3 February 2025
– By Editorial Staff
3 minute read

Cranberries are packed with antioxidants, support good bacteria, and are known for aiding urinary tract health. Though often overlooked, they grow across most of Sweden and the northern hemisphere, making them more common than many realize.

Most people are familiar with cranberries and have probably tasted juice made from them, perhaps in a drink. Many people probably don’t think of cranberries when it’s time to pick them, but they are actually more common than you might think. Cranberries grow in bogs across much of Sweden, although they are less common on Öland and in the mountains.

Sweeter after frost

Cranberries thrive in moist soil and often grow on bogs. They persist over winter and can therefore be harvested for most of the year, with a harvest season that extends from September to March. Like rowan berries, they are tastier after being frost-bitten, as they otherwise have a more bitter taste. In spring, the berries also become slightly sweeter.

The berries grow close to the ground and are about the same size as American blueberries. There is also a species called the dwarf cranberry, which is sometimes considered a subspecies of cranberry. The two species are nutritionally similar, so it doesn’t matter if you pick the wrong one, according to Skogsskafferiet.

Health

Girls and women suffering from urinary tract infections (UTIs) have probably heard that cranberry juice can help, and it is a popular option that many women use successfully to prevent the infection.

A Finnish study had women with an increased susceptibility to UTIs drink cranberry and lingonberry juice daily to see if infections were reduced. The results showed an average reduction in UTIs of 20%. Cranberries and lingonberries are related and contain similar substances, such as pectin and vitamin C.

A meta-analysis published in 2024, which reviewed 20 studies on the topic, found that 18 of them linked cranberry juice to a 54% lower rate of UTIs compared to no treatment. In addition, cranberry juice use resulted in 59% lower antibiotic use. The conclusion was that cranberry juice can be an effective way to prevent UTIs while reducing the need for antibiotics, which is particularly important in the fight against increasing antibiotic resistance.

UTIs are caused by bacteria and mainly affect women and girls; there are indications that they can be caused by bacteria from both the gut and the vagina. A 2021 study investigated whether cranberries could alter the bacterial flora of both the gut and the vagina. The results showed that consuming cranberries increased the presence of beneficial bacteria and reduced some less beneficial bacteria. However, for the best effect, cranberry juice should be drunk unsweetened, as sugar can raise the pH and increase the risk of UTIs.

Cranberry juice in particular is said to contain some vitamins C and E, as well as magnesium and potassium, according to the medical website WebbMD. Furthermore, cranberries, like many other berries, also contain anthocyanins, which are a strong antioxidant. Since these antioxidants are mainly found in the peel, less of it is found in juice. The berry also contains the flavenoid myricetin, which is supposed to contain antioxidant, anti-cancer, anti-diabetic and anti-inflammatory components.

Note that you should not eat cranberries or drink cranberry juice if you are taking the blood-thinning drug Waran because substances in the berries counteract the effect of the drug.

Using the berries

Cranberries are similar in taste to lingonberries and are therefore best used in a similar way. They are ideal for making jams, jellies or juices, and thanks to their high content of benzoic acid, no additional preservatives are needed. During Thanksgiving, celebrated in Canada and the United States, cranberry sauce is a traditional part of the turkey dinner, similar to how lingonberry jam is used in Sweden.

Cranberries can be dried and mixed into muesli, for example. They can also be frozen just as they are.

For those who want to use cranberries in their diet for health reasons, such as preventing urinary tract infections, it is best to eat them plain or make an unsweetened drink. Cranberry drinks without sugar can be tart, but are much better for your body. Other tips include adding cranberries to smoothies, porridge or bread baking for a healthy and tasty variety.

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Social media feeds young people junk food ads

Published 10 June 2025
– By Editorial Staff
A large majority of food advertisements that young people are exposed to promote unhealthy products such as fast food, snacks or sugar-sweetened drinks.
2 minute read

The majority of food advertising that young people encounter on social media promotes unhealthy products. This is according to a new study from Karolinska Institutet, where TikTok is identified as the platform with the highest exposure.

The survey is based on data from young people aged 13-16 who, over the course of a week, documented the advertising they saw in their social media feeds. They were given a choice of platform, with most choosing Tiktok or Instagram.

One third of all the ads young people were exposed to were for food or drink – and 70% of these were for unhealthy products such as fast food, snacks or sugar-sweetened drinks.

Exposure was highest on Tiktok, where participants could encounter up to 26 food-related ads per hour. On Instagram, the average was 13.

– In focus group interviews, participants said they were often tempted to make impulse purchases by the design of the ads. At the same time, several expressed a feeling of powerlessness in the face of the amount of advertising they encounter daily, said Sofia Spolander, researcher at the Department of Medicine, Huddinge in a press release.

Childhood obesity doubled

In the focus group, the young people also described how the advertising affected them and increased their cravings for unhealthy food, and that it was difficult to resist consumption.

Overweight among Swedish children aged 11–15 has more than doubled in the past 30 years, and obesity in this age group has quadrupled, according to the study. Young people are eating more unhealthy food than before, while consuming fewer fruits and vegetables. Unhealthy eating habits are one of the leading causes of poor health and premature death in Sweden.

The food environment influences our eating habits, and marketing is an important part of that environment. This study shows that the advertising young people encounter on social media goes against the dietary guidelines, says Spolander.

The study forms the basis of a new report from UNICEF Sweden and the Swedish Heart-Lung Foundation, which highlights how advertising for food and drink in social media affects the health of children and young people.

Young dog owners’ lifestyles negatively affect their dogs

Published 3 June 2025
– By Editorial Staff
Today, many people get a pet to fit into their passive lifestyle - rather than adapting to the animal's needs themselves.
2 minute read

Stressed and overweight dog owners feel their lifestyle also impacts their dogs, according to a new Novus survey commissioned by Arken Zoo’s veterinary services. The effect is especially noticeable among younger owners, who report that their own health issues spill over onto their pets.

The survey, conducted between March and April 2025, gathered responses from 1,046 Swedish pet owners aged 18 to 84 about their own and their dog’s well-being. The results reveal a strong link between owner lifestyle and pet health.

Half of pet owners consider themselves overweight, with two in ten not exercising at all. A quarter of dog owners say they walk their dog for an hour a day at most, while 18% say their dog is overweight. Veterinarian Per Bransell says the results are “alarming”, but not surprising.

– Today, many people get an animal to fit into the owner’s lifestyle instead of the owner adapting to the animal. Getting a pet is a commitment every day, not just on weekends and holidays, he said in a press release.

Young adults struggle so do their dogs

Among pet owners aged 18 to 34, 31% say they walk their dogs no more than an hour a day, and 23% report their pets are overweight.

Young owners also experience higher levels of stress: 42% see themselves as stressed, and 24% believe that stress affects their dogs. Staff at Hundstallet, a dog shelter that rehomes animals, say the survey aligns with what they see every day.

– People are increasingly unwell, and it has a direct impact on animals. We see a clear rise in dogs arriving in both poor physical and mental condition — often depressed, lacking proper veterinary care or stimulation, says Johnny Kroneld, Head of Communications & Fundraising at Hundstallet.

Use of obesity drugs surges in Finland

Published 27 May 2025
– By Editorial Staff
Sales of obesity medication have skyrocketed in Finland in just a few years.
1 minute read

The use of obesity medication increased significantly in Finland last year – many more Finns were treated for obesity compared to 2023. At the same time, opinions are divided on the effectiveness of the treatment.

A total of 75,000 Finns used medicines for weight loss or obesity treatment in 2024. This is an increase of 20% compared to 2023, according to the Social Insurance Institution of Finland (Kela). In five years, the number of users has increased more than elevenfold.

Semaglutide, sold under brands such as Ozempic and Wegovy, is the most popular. Originally designed as a drug for the treatment of type 2 diabetes, this type of medicine is not reimbursed if it is used for obesity alone. This means that Finns have to foot the bill themselves, which can be over €260 each month.

It is also unclear how effective this type of weight loss medication really is, but Pia Pajunen, an expert physician at Kela, says it is not a quick fix for losing weight.

If you stop using the obesity medication, the weight often starts to increase again quickly. It’s important that both doctors and patients are aware that research shows these medications generally need to be used long-term, she says in a press release.

Good fitness may prevent dementia

Published 27 May 2025
– By Editorial Staff
1 minute read

People at risk of dementia can reduce their risk by improving their fitness, according to a study from Karolinska Institutet. The study shows that the risk can be reduced by up to 35%.

In the study, published in the British Journal of Sports Medicine, researchers used data from 61,214 dementia-free people, drawn from the UK Biobank database. The participants, who were aged between 39 and 70, were followed over a period of 12 years.

On enrollment, participants completed a six-minute cycle test to measure fitness, and neurological tests were done to estimate their cognitive function. The researchers also examined genetic predisposition to dementia.

During the 12-year follow-up period, a total of 553 people were diagnosed with dementia, representing 0.9%.

The results show that better fitness is linked to reduced dementia risk and improved cognitive function. According to Weili Xu, Professor of Geriatric Epidemiology in the Department of Neurobiology, Care Sciences and Society, good fitness can reduce the risk of all forms of dementia by up to 35%.

– Our findings suggest that maintaining good fitness may be a strategy for preventing dementia, even among people with high genetic susceptibility, she says in a press release.

The researchers also emphasize that this is an observational study, so it is not possible to determine cause and effect. The number of dementia cases may also have been underestimated, they add, as UK Biobank participants are generally healthier than the general population.

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