A Melbourne mother has been reprimanded by her child's school for packing a lamington into a lunchbox.

The lamington was returned uneaten, along with a note from the kindergarten, saying "it doesn't comply with the school's nutrition policy”.

The mother was told not to include it in her child's lunch again.

The lamington was returned to the mum along with a 'lunchbox reminder'. Source: 7 News More

She pointed out to the lunchbox police that the lamington only contained 40 calories.

Seven News readers took to social media to voice their own disbelief at the lamington shunning.