Histamine levels in meat have become a significant health challenge for many. We've been doing a TON of research on this issue over the past couple of years due to the number of customers we're serving that are challenged by it. Here's a great video from Sarah @ Carnivore Yogi about meat broth who is very knowledgeable on this deep, developing, and varying topic of histamines in meat(we actually have a specific 'low histamine/non-aged meats' shopping category and also a page that explains why these products are ideal for those with histamine sensitivities).