In the beginning of my 1 month in Argentina, it was a little difficult adjusting to the food situation. Luckily, I stayed in a nice apartment with a usable kitchen. The vegetables all tasted different, of course.. and so did the olive oil, the salt.. and even the different water made me miss the taste of home. I got over it, don't worry :) But when I found this little place downtown during my first week there, I was so excited! I think I missed organic-y people.
PuraVida Juice Bar is on Reconquista, at Tucumán. They serve salads, sandwiches, wraps, muffins, juices, smoothies, and wheatgrass. I enjoyed their Todo Verde Salad: organic mixed greens, avocado, parsley, alfalfa sprouts, green onion, celery, and cucumber, with a tahini based dressing. And, the drink I went back for, a few different times, was the anti-resfrío: made with pineapple, apple, ginger, and wheatgrass.
I'm no scientist - but I'm pretty sure wheatgrass is gluten free. Incase you were wondering.