Last week the weather was hot, humid and almost oppressive at times. While summer is my favorite season (swimming! tomatoes! Vitamin D!), even I am not immune to the effects of relentless, damp heat. In these instances I find that I need to stay well hydrated, and one of the best ways to do that, beyond drinking water and healthy tonics like beet kvass or kombucha, is to eat foods that help to hydrate the body. Fermented foods loaded with probiotics are a good option, and this salad is another: it uses raw zucchini as a base, meaning that none of the water is lost in cooking. It makes for a light, flavorful meal after a long day, and keeps well packed in a jar in the fridge for lunch the next day. You can add feta cheese to it (I often do), serve it with protein, or just eat a large and satisfying portion on its own.