German discounter Aldi is taking advantage of the economic slowdown to expand in the United States, a Frankfurt-based market researcher reported Friday.

Although facing declining revenues at home, the discount food store will open 75 new stores in the U.S., Planet Retail's Senior Discount Analyst said.

"Of course the current economic crisis is really helping Aldi to gain more customers, but is also making some changes in its concept," explained Matthias Queck.

The changes Aldi made include more fresh products, especially produce, and sprucing up its stores. New stores are coming into more affluent neighborhoods than Aldi originally targeted.

Aldi is credited with pushing Wal-Mart out of Germany and Thomas Roeb, a retail expert at the University of Applied Sciences Rhine-Sieg, said that while Wal-Mart is considered a discount retailer, its prices are not that low. He said Aldi's prices are low and quality is high.