In a new season of Folkeopplysningen on NRK, it is claimed that powdered cabbage is at least as super food as the trending product spirulina.- Tendential and frivolous, says the author of the book Supermat.VIDEO: Is cabbage better than spirulina?Here, presenter Andreas Wahl and nutrition professor Birger Svihus review the nutrients in the two.The article is several years old.PRESENTED CABBAGE AS A SUPER FOOD: Henriette Bruusgaard and Andreas Wahl wrapped freeze-dried cabbage and gave it to bloggers interested in diet.In recent years, there has been a lot of talk about superfoods - dried edible plants in powder form.But how super is really superfood?Does a teaspoon of algae powder really contain as many nutrients as a kilogram of vegetables?The program Folkeopplysningen, which is back with a new season in September, will find out.Program manager Andreas Wahl in Folkeopplysningen caught up with nutrition professor Birger Svihus to compare spirulina - a powdered algae sold as a superfood - against good old-fashioned cabbage.Svihus removed the water from ten kilos of cabbage, and freeze-dried what was left.The result was a powder that was better than spirulina on most of the nutritional values that were measured.- When you typically take a nutrient-rich vegetable such as cabbage and remove the water, which makes up approximately 90 per cent, you get a very strong concentration of the nutrients, Svihus explains to NRK.no.He believes that you could do something similar with several other traditional food plants and achieve roughly the same result.A group of bloggers who are concerned with diet got to test the new "super product", which for the occasion was named Brassica - Latin for cabbage.They were presented with a contrived marketing package, but the information they received about the product's properties was true.WATCH THE ADVERTISING FILM FOR THE FICTITIOUS PRODUCT HERE:Several of the bloggers reported increased energy levels, and some noticed a so-called detox effect.- I have faith in the product based on the information I have received about it, says one of the bloggers.- I feel refreshed in the morning, and notice that my skin has improved a bit, says another.SEE THE REACTIONS FROM WHEN THE EXPERIMENT WAS REVEALED:Svihus is skeptical of the superfood industry, he points out that what is presented as powdered food is only dried vegetables.- Why buy dried vegetables when you can buy fresh vegetables that are also good and give you a feeling of satiety?He believes many speculate on people's fear of not getting enough nutrients when they have a normal and varied diet.- Everyone dreams of the magic pill.It seems more logical that one should become fit and healthy by eating pills or powder.There are people who live off this misconception, this fear.He does not disagree that individuals can have a positive effect from spirulina powder, especially those who initially do not get enough vegetables.Svihus nevertheless specifies that vegetables should not only contribute vitamins and minerals, but to a feeling of satiety.He also warns against the fact that the supplement can become a sleeping pillow that makes you sloppy with the rest of your diet.- Vegetables in themselves are superfoods.And that superfood is best eaten fresh and raw.John Opsahl, health and diet advisor, founder of Supernature and author of the book Supermat, is not impressed by Folkeopplysningen's test, which he calls tendentious.- The fact that the placebo effect is real is nothing to wonder about.And putting two different food plants against each other and implying that it should say something about the relationship between 40,000 food plants is nonsensical, he says to NRK.no.John Opsahl explains that superfoods have developed gradually over the past 50 years - where we previously regarded food as rumen filler, we now look at functions.Opsahl says that you cannot begin to analyze the effect of a dietary change after a week or two, he believes that at least half a year should pass before you can emphasize changes.- You have to get through the phase where you deceive yourself, no one who is seriously concerned with diet will care much about what happens after a couple of weeks.In any case, he agrees with Svihus that cabbage is an underestimated food plant.- We should eat more cabbage.We generally eat too little fruit and vegetables - in Norway we eat on average just over 100 grams per day, the average for Europe is almost 300 grams.We are far behind other western countries.Opsahl says that our diet is largely based on culture, but that globalization, which has made the world's 30-40,000 food plants more readily available, means that we can think anew.- I wish we were a little more curious and open, when you try to ridicule other points of view, you miss out on exciting discussions about diet.I understand the premise, but think it's old fashioned - the world moves forward.He admits that he himself is not overly enthusiastic about the term superfood itself, and points out that there is no kind of institution that sets the boundaries for what is superfood and what is not.- Superfoods are ordinary vegetables, berries and fruit.The rule of thumb for superfoods is that they should contain broader nutritional value combined with other plant chemicals that help the body.Opsahl clarifies that there is no conflict between superfoods and other edible plants.- I encourage, for example, one vegan day a week, it helps both the environment and the body.People should experiment with their diet, get to know how the body works, and find the diet that suits them.Maiken Grønvold is a nursing student and blogger, and was part of the test group that got to try Brassica.She tells NRK.no that she has continued with superfoods, including spirulina.- I think it's very good to start the day with that, then I know I'm getting what I need.Grønvold says that the superfood is not a substitute for a normal healthy diet, but that it comes in addition.- I could probably just eat a larger amount of vegetables and fruit, but I think it's reassuring to know that I'm getting all the nutrients - rather a little too much than a little too little.She explains that superfoods helped her get in shape after she had the kissing bug.- Superfoods are probably a bit hyped up, and there may well be a placebo effect in the picture, but it has helped me anyway.Anyone who believes they have been affected by unlawful publication is encouraged to contact the editors.Pressens Faglige Utvalg (PFU) is a complaints body appointed by the Norwegian Press Association which deals with complaints against the media in press ethical issues.