Swedes don’t eat sweets on Saturdays because of marketing. They do it because of a dental-health campaign built on one of the country’s most troubling medical experiments. Here is that story, how the pick-and-mix wall works, and what to know about allergies and salty licorice.
When you need this
You’ve noticed that every supermarket has a wall of sweets and that it’s busiest on Friday evening and Saturday. You’re about to fill a bag for the first time. Or you’re buying for a child with a nut allergy, or for a family that avoids gelatine. Or a Swedish friend has just handed you a black sweet and is watching your face closely.
Why Saturday? The dental advice behind it
Lördagsgodis (literally “Saturday sweets”) is the habit of eating sweets on one day a week instead of a little every day. According to the Nordic Museum, the idea appeared at the end of the 1950s, when poor dental health was a problem for Swedish children and adults alike. The words lördagsgodis, lördagssnask and lördagsgott spread in the 1960s, not least through Folktandvården, the public dental service that was expanding at the time.
The logic is about frequency. Bacteria on the teeth turn sugar into acid, and damage builds up when that happens often. One bag in one sitting gives saliva time to repair; nibbling all week doesn’t.
The advice isn’t only history. The national health information service, 1177, still tells parents:
| 1177’s current advice | For whom |
|---|---|
| Avoid sweets for as long as possible, then give them “once a week, for example Saturday candy” | Children |
| Avoid sweets, ice cream, cakes and buns, “especially on weekdays” | Adults |
| Let teeth rest at least two hours between meals; don’t graze | Everyone |
| Sour sweets erode enamel too | Everyone |
The Vipeholm experiments
The science behind the advice came from the Vipeholm institution near Lund. In 1945 Sweden’s national medical board, Medicinalstyrelsen, ordered an investigation into sugar and tooth decay. In the late 1940s, residents of Vipeholm — people with intellectual disabilities — were fed an extremely sweet and sticky diet.
The trials proved that sticky sweets eaten between meals cause caries. They did it at great cost: about 50 of the 660 subjects had their teeth destroyed. No real ethical debate followed at the time; critical analysis only came in the 1990s, and the design is now widely condemned.
Popular accounts often pin the word lördagsgodis to a specific campaign year. We’ve kept to what the museum and the research record support: the idea emerged at the end of the 1950s and spread in the 1960s.
How the pick-and-mix wall works
Lösgodis (loose sweets, also smågodis) is how most Saturday candy is bought. It arrived as a sales technique in Swedish shops in the 1980s, once the rules that had required almost all food in shops to be packaged were changed. The Nordic Museum puts Swedish consumption at roughly 17–18 kg of sweets per person per year and names pick-and-mix as one reason.
Here’s how it works in practice:
- Take a bag from the dispenser by the wall.
- Open a bin, scoop with the scoop or tongs, close the lid. Never use your hands.
- Mix freely. Most sweets on the wall usually share one price per weight.
- Pay by weight at the till or self-checkout.
Read the price sign before you fill the bag. Sweets weighed in front of you only have to carry a comparison price (jämförpris) by law, and Konsumentverket’s unit for weight is the kilo. Many walls post the price per hekto (100 grams, written hg) instead. Multiply by ten for the per-kilo price — a generous scoop adds up faster than people expect.
On hygiene, the food agency, Livsmedelsverket, is relaxed about germs: sweets have very low water activity, so bacteria can’t grow in them, and the main job is keeping dirt out. That’s what the lids and scoops are for.
Allergies and diets at the bin
This is where loose sweets differ most from packaged ones.
The shop must tell you about allergens. Loose sweets are non-prepacked food, so the shop has to say whether an item contains any of the fourteen allergens in EU law — milk, nuts, peanuts, eggs, soy and gluten cereals among them. In Sweden it can do that in writing or orally, with a notice that the information is available. Ask staff before you scoop.
But the regulator itself names the problem. Livsmedelsverket says the real risk with loose sweets is allergens such as milk and nuts transferring between sweets in different containers. No sign can rule that out. With a severe allergy, choose sealed packs and read the ingredient list. Swedish food labels explained covers how to read one.
Gelatine isn’t an allergen. Gummy sweets often contain it, and nothing obliges the shop to flag it. Vegetarian, vegan and halal buyers should ask, or buy packaged — see vegan in Sweden.
Salty licorice: taste one first
Much of the black candy in a Swedish wall is licorice, and a lot of it is saltlakrits: licorice flavored with salmiak, the salt ammonium chloride. It tastes sharply salty, sometimes almost medicinal, and strengths vary a lot. Buy one piece first.
There’s also a health note that most guides skip:
- Licorice contains glycyrrhizinic acid, which in quantity can upset the body’s salt balance and raise blood pressure. Livsmedelsverket says sensitive people who regularly eat about 50 grams of licorice sweets a day or more are at risk. Sensitive groups may include people with high blood pressure, heart failure or kidney disease, and pregnant women.
- Children under five shouldn’t eat licorice or salmiak regularly; a few pieces now and then are fine.
- A 2024 Linköping University study found blood pressure rose even at a dose EU and WHO assessments treat as probably safe. It’s one small study, but “a bag a day” isn’t a harmless habit.
- Packaged licorice sweets must say “contains liquorice” above a set level, and add a warning for people with high blood pressure at a higher one. A loose bin carries no such label.
Mistakes to avoid
- Filling a big bag without checking the price per hekto or kilo.
- Assuming no warning at the bin means nut-free or milk-free.
- Picking sweets up by hand instead of with the scoop.
- Handing salty licorice to a small child as a joke.
- Thinking the Saturday rule is a law or a shop policy — it’s a household habit.
Practical information
| Item | Detail |
|---|---|
| What lördagsgodis is | Sweets once a week, traditionally Saturday |
| Origin | Late-1950s dental advice after the Vipeholm sugar trials |
| Current health advice | 1177: once a week for children; avoid weekdays for adults |
| How loose sweets are priced | By weight; comparison price required, often posted per hekto |
| Converting | 1 hg = 100 g; price per hg × 10 = price per kg |
| Allergen information | Must be given on request, in writing or orally |
| Main risk at the bin | Milk and nut transfer between containers |
| Gelatine | Not an allergen; not flagged at the bin |
| Licorice | Risk for sensitive people at about 50 g of sweets a day; not regularly for under-fives |
FAQ
What is lördagsgodis?
Lördagsgodis means “Saturday sweets”: the Swedish habit of eating sweets once a week, on Saturday, instead of a little every day. The idea appeared in the late 1950s as dental advice after research showed that sticky sweets between meals cause caries. Many Swedish families still follow it, and 1177, the national health information service, suggests it for children.
What does the Vipeholm experiment have to do with Saturday candy?
Research at the Vipeholm institution near Lund, ordered by the national medical board in 1945, fed residents with intellectual disabilities very sticky, sugary diets in the late 1940s. It proved that sweets between meals cause caries, and roughly 50 of 660 subjects had their teeth destroyed. The once-a-week sweets idea followed from those findings; the experiment’s ethics are now widely condemned.
How does lösgodis work in Swedish shops?
You take a bag, scoop sweets from lidded bins using the scoop or tongs, and pay by weight. Most walls charge one price per weight for most of the mix, posted per hekto (100 g) or per kilo. Only a comparison price per weight is legally required for goods weighed out in front of you, so check the sign before filling a large bag.
Is pick-and-mix candy safe with a food allergy?
Treat it with care. The shop must tell you, in writing or orally, whether a sweet contains one of the fourteen declarable allergens, so ask staff. But Livsmedelsverket itself names milk and nut transfer between bins as the main risk of loose sweets, which no label can rule out. With a severe allergy, choose sealed packs and read the ingredient list.
What is salty licorice and is it safe?
Saltlakrits is licorice candy flavored with salmiak, the salt ammonium chloride, and tastes sharply salty. In ordinary amounts it is fine for adults. Livsmedelsverket says sensitive people eating about 50 grams of licorice sweets or more daily risk raised blood pressure, and children under five should not eat licorice or salmiak regularly. Taste one piece first.
Is lösgodis vegetarian or halal?
Often not. Gelatine is common in gummy sweets, and it is not one of the fourteen allergens, so nothing obliges the shop to flag it at the bin. Some shops post ingredient signs and staff can often check the wholesale label, but if gelatine source matters to you, ask before scooping or buy packaged sweets with a readable ingredient list.
Related guides
- Swedish candy and the lösgodis wall — the sweets themselves, and what to try
- Eating out with food allergies in Sweden — how to ask, and what the law guarantees
- Swedish food labels explained — reading packaged sweets when the bin is too risky
- Easter in Sweden — the biggest sweets moment of the year
- Surströmming — the other Swedish taste test visitors get dared into
Facts verified 2026-09-25. Sources: Nordiska museet, 1177, Livsmedelsverket (the Swedish Food Agency), Konsumentverket, EU Regulation 1169/2011, forskning.se — full register in this topic’s source file. No shop names or prices are published here; read the sign at the bin. Found something outdated? Tell us and we’ll fix it.