Yak meat is a highly nutritious alternative to beef. It is leaner than chicken, high in Omega 3 and has a sweet delicate flavor.

http://www.takepart.com/article/2014/07/15/yak-meat

https://www.easternplains.com/index.php/farm-products/frozen-meat/about-yak-meat#:~:text=The%20health%20benefits%20of%20eating,than%20skinless%20chicken%20%26%20most%20fish.

Yak wool is warmer than merino wool, is not itchy, no known allergens and wicks moisture away from your body.

https://www.treehugger.com/yak-wool-hot-new-trend-base-layers-4856991

Seven interesting facts about yaks:

https://www.treehugger.com/yak-facts-4869734