I love dm drogerie markt for their health conscious products and the large selection of allergy friendly food and products. They also offer the lowest prices I can find so far on gluten-free products including pasta, pizza shells, bread, and snacks. They are much cheaper than Reformhaus or Billa which carry the exact same brand (Schaer) and are located conveniently all over the city. I frequently shop at the ones in the 3. District on Landstrasse, and can also vouch for the ones at Reumannplatz or on Mariahilferstrasse. Not every dm offers food products though, so maybe call ahead in your neighborhood. read more