Inköpslistan minskar matsvinnet.

Because Swedish usually puts the definite article at the end of the noun instead of using a separate word before it.

• inköpslista = shopping list
• inköpslistan = the shopping list

The ending -n here means the.
So Swedish often says one word where English uses two.

For the same reason: Swedish marks definiteness with an ending.

• matsvinn = food waste
• matsvinnet = the food waste

Here the ending is -et, which is a common definite ending for ett-words.

So both nouns in the sentence are definite:

• Inköpslistan = the shopping list
• matsvinnet = the food waste

Swedish often uses the definite singular to talk about something in a general or typical sense.

So Inköpslistan minskar matsvinnet can mean something like:

• The shopping list reduces food waste
• A shopping list reduces food waste
• Shopping lists reduce food waste

depending on context.

This kind of definite form is very common in Swedish when talking about a whole category or a general idea.

They have different grammatical genders:

• en inköpslista → common gender
• ett matsvinn → neuter gender

That is why their definite forms look different:

• inköpslista → inköpslistan
• matsvinn → matsvinnet

This is a very important pattern in Swedish:

• many en-words take definite -en or -n
• many ett-words take definite -et or -t

Minskar is the present tense of minska, which means to decrease, to reduce, or to lessen.

In this sentence it is being used transitively, so it means reduces:

• Inköpslistan minskar matsvinnet.
• The shopping list reduces food waste.

So matsvinnet is the thing being reduced.

Because Swedish verbs do not change according to the subject the way English verbs do.

In English:

• I reduce
• she reduces

In Swedish, the present tense stays the same:

• jag minskar
• du minskar
• han minskar
• inköpslistan minskar

This makes Swedish verb conjugation much simpler than English in this area.

Yes. Swedish loves compound nouns.

inköpslista is made up of:

• inköp = purchase / shopping
• lista = list

So together:

• inköpslista = shopping list

This is extremely common in Swedish. Instead of using several separate words, Swedish often builds one long noun.

It is also a compound noun:

• mat = food
• svinn = waste / loss / shrinkage

So matsvinn literally means something like food waste or wasted food.

This is a useful word in modern Swedish, especially in discussions about sustainability, shopping, and cooking.

The sentence follows normal Swedish main-clause word order:

Subject + verb + object

• Inköpslistan = subject
• minskar = verb
• matsvinnet = object

So it is a very straightforward sentence structure.

Yes, you could, but the nuance changes slightly.

• Inköpslistan minskar matsvinnet sounds more general or category-based, like talking about the idea of a shopping list.
• En inköpslista minskar matsvinnet sounds more like a shopping list as one example or one instance.

Both can be possible, but the original sentence with the definite form is very natural in Swedish for general statements.

A rough guide is:

IN-shurps-lis-tan

A few important points:

• ö does not sound like English o
• köp has a Swedish k sound before ö
• the stress is mainly on the first part: INKÖPS-

A more careful learner-friendly approximation might be:

IN-kurps-list-an

but the exact vowel sounds are best learned by listening to native audio.

Usually no. It is normally treated as an uncountable mass noun, similar to food waste in English.

That is why you will often see it in singular forms like:

• matsvinn
• matsvinnet

rather than plural forms.

So in this sentence, matsvinnet refers to the general phenomenon or amount of food waste.

It could, but Swedish often prefers the definite singular for broad statements.

Compare:

• Inköpslistan minskar matsvinnet.
• Inköpslistor minskar matsvinn.

Both can make sense, but the first one is a very natural Swedish way to express a general truth. Swedish often uses singular definite forms where English might prefer an indefinite singular or a plural.