Low combines with different prepositions depending on whether you describe content, comparison, or supply.
Use low in for small amounts inside something, low on for limited supply, and low for when comparing against expectations or standards.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Use low in for foods, materials, or products containing little of something.
Use low on when supplies or quantities are running short.
Use low for when something is lower than usual in a particular context.
The same subject can take different constructions because each sentence answers a different question.
Some combinations appear in real text but do not mean what learners often assume.
Use low on when talking about running short of something.
✕ We are low in milk. ✓ We are low on milk.Use low in for the amount contained in food or products.
✕ This soup is low on salt. ✓ This soup is low in salt.Low for compares with expectations, while low in describes content.
✕ The price is low in this market. ✓ The price is low for this market.Sometimes low works naturally alone.
✕ The water level is low on. ✓ The water level is low.Choose the expression that matches the intended meaning.
Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.
Low in describes content, while low on describes supply or availability.
Yes. It means lower than expected for that season.
Yes. It means there is not much time left.
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