Sentence examples for At least one from inspiring English sources

The phrase "at least one" is correct and commonly used in written English
It is typically used to indicate the minimum amount or number of something. Example: "Please ensure that at least one person is present for the meeting tomorrow." This sentence means that at least one person must be present, but more people can also attend. Another example: "The doctor said that you should have at least one serving of vegetables with every meal." This sentence means that the minimum amount of vegetables you should eat is one serving, but you can have more if desired.