Affirmative, but you should be cautious as per the quantity of kale juice you're taking in. You can end up with other health issues if you consume too much kale. However, it would be best to moderate your consumption, as it would assist in the metabolism of many nutrients. Kale can cause kidney stones or it can increase the severity of underlying kidney problems. Oxalate is a major constituent of Kale and they are causative agents of kidney problems. You are advised to avoid taking kale juice if your family has a history of kidney problems such as kidney stones.