Collagen supplements are a huge newcomer to the sports supplements minefield. But will they make your ligaments and tendons stronger or more resistant to injury. I don't supplement them myself. Here's why.

My book Make or Break on climbing injury prevention and treatment:
https://www.davemacleod.com/shop/make...

Scientific references discussed in this video:
https://www.davemacleod.com/blog/coll...

Chapters:
00:00 Every climber should be taking collagen?
01:12 Its all about glycine and proline
02:32 Argument 1: We need to eat whole animals
05:43 Argument 2: We make too little glycine?
13:52 Does supplementation work though?
21:43 What I do instead of supplementing collagen
22:58 Are there any harms of collagen?
23:56 Big hitters for tendon strength/injury risk
25:51 The irony of buying cow skin for 40 dollars a bag
27:15 A supplement I take and you should consider