Aeon has raised the price of some of its best selling own-brand products by between 10% and 30%.

The move comes in response to pressure placed on the retailer's margins by Japan's inflated food prices.

Aeon, which offers roughly 2,500 food items under its Topvalu brand, has increased the prices of at least ten items since mid-July, including dairy and flour-based products.

When contacted by just-food, the company declined to comment on its pricing policy, which has received considerable attention in the Japanese press.

Before the price hikes, Topvalu sold for 20-30% less than comparable name-brand products. Some items now approach the price of regular food brands.