Seasonal eating, what does it mean? Foods that are ‘in season’ are foods that are grown and harvested at the time of year when you buy and cook them. Before global transportation was as accessible and easy as it is today, eating locally and seasonally was the norm. It was out of the question to get peaches in the winter, or chestnuts in the summer. There are many health benefits to eating and sourcing local seasonal foods. It can also help you to save money too.