Kale is healthy so I am sure these must be healthy. For a home made version of crisps simply put a single layer of chopped kale on a baking tray and drizzle with delicious olive oil and sprinkle with rock salt. For a slight “lift” squeeze on the juice of half a lemon, or for a spicy version use Fino chilli oil. Oven bake for about 10 mins at 180C but do keep an eye on it so it doesn’t burn. Very moreish!