Japanese company Nakazawa Foods sells Adult Milk – for adults living in a stressful society. The milk costs over $4 per quart and is taken from cows once a week at the break of dawn, when they discharge a lot of melatonin. It contains 3-4x more melatonin than regular milk. – WTF Fun Facts
Source: Got money? You’ll need a lot to buy this milk (nbcnews.com)