Supermarket revenue during the first half of 2019 rose 3.4 percent compared to the same period last year.
Foodstuffs, especially frozen foods and snacks, accounted for most of that increase.
The quantity, or volume, of sales increased much less, as supermarket chains limited the number of special offers sold in order to boost profitability.
Alcoholic beverages will be tested for the first time, reported NOVA TV.
The country is launching a new study on the EU's double standard of food.
Alcoholic beverages will be tested for the first time. Probably the main foods to be checked for a double standard will be pasta, dairy products, canned food, olive oil, beer, and wine.
The study will last 18 months.