Most people skip the world’s cheapest performance enhancer because it’s not “trendy” enough. Unless you’re training shirtless on a beach in California, there’s a good chance you’re vitamin D deficient. Here’s what most coaches won’t tell you about vitamin D: → It’s not just a “bone health supplement” - it works like a hormone → Has receptors in almost every muscle in your body → Deficiency = decreased protein synthesis → Deficiency = reduced testosterone → Deficiency = poor recovery and higher injury risk The fix is simple: 2,000-4,000 IU per day minimum. I take 4,000 year-round, 6,000 in Canadian winters. While everyone’s chasing the latest “breakthrough” supplement, the basics still matter most. Systems beat sacrifice. Even with the simple stuff. What fundamentals are you skipping that could be holding back your progress just because they aren’t trendy? Follow @carsonlabrecque for more intelligent disruption of bodybuilding BS.