The Injectable L-Carnitine Deep Dive

The Hunter Williams Podcast - A podcast by Hunter Williams

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Email List: ⁠⁠⁠⁠⁠https://huntershealthhacks.beehiiv.com/⁠⁠⁠⁠⁠Get My Book On Amazon: ⁠⁠⁠⁠⁠⁠https://a.co/d/avbaV48Download⁠⁠⁠⁠⁠⁠The Peptide Cheat Sheet: ⁠⁠⁠⁠⁠⁠https://peptidecheatsheet.carrd.co/⁠⁠⁠⁠⁠⁠Download The Bioregulator Cheat Sheet: ⁠⁠⁠⁠⁠⁠https://bioregulatorcheatsheet.carrd.co/⁠⁠⁠⁠⁠⁠1 On 1 Coaching Application: ⁠⁠⁠⁠⁠⁠https://hunterwilliamscoaching.carrd.co/⁠⁠⁠⁠⁠⁠Book A Call With Me: ⁠⁠⁠⁠⁠⁠https://hunterwilliamscall.carrd.co/⁠⁠⁠⁠⁠⁠Supplement Sources: ⁠⁠⁠⁠⁠⁠https://hunterwilliamssupplements.carrd.co/⁠⁠⁠⁠⁠⁠Amazon Storefront: ⁠⁠⁠⁠⁠⁠https://www.amazon.com/shop/hunterwilliams/list/WE16G2223BXA?ref_=cm_sw_r_cp_ud_aipsflist_R7QWQC0P1RACB2ETY3DY⁠⁠⁠⁠⁠⁠Socials:Instagram: ⁠⁠⁠⁠⁠⁠https://www.instagram.com/hunterwilliamscoaching/⁠⁠⁠⁠⁠⁠Video Topic Request: ⁠⁠⁠⁠⁠⁠https://hunterwilliamsvideotopic.carrd.co/⁠In this video I do a full deep dive on injectable L-carnitine—what it is, how it actually works in your body, and how I personally use it in my own optimization routine. I’ve been using injectable L-carnitine for years, and the longer I use it, the more it’s become one of those quiet, reliable staples I always come back to for energy, performance, and longevity support.I start by breaking down the basics: L-carnitine is a naturally occurring amino acid derivative that shuttles long-chain fatty acids into the mitochondria so they can be burned for energy. When you think L-carnitine, think mitochondria, ATP, and better fuel utilization. I explain why injectable L-carnitine is so powerful compared to oral—much higher bioavailability, higher plasma levels, and you avoid some of the downsides like elevated TMAO that can show up with long-term, high-dose oral use.From there, I walk through the human data: improved exercise performance, reduced lactate, better recovery, cardiovascular support, and even a wild study in centenarians showing more muscle, less fat, and better physical function from L-carnitine supplementation. I also talk about cognitive and mood benefits, and why I stack injectable L-carnitine with acetyl-L-carnitine orally for brain health.I’m honest about side effects and trade-offs: post-injection pain, occasional lumps, and even the “fishy odor” some people notice at higher doses. I share exactly how I dose it (usually 400–500 mg IM before workouts, three to four times per week), why I prefer intramuscular over subcutaneous, and what needle size works best in the real world.I close by making the case that injectable L-carnitine isn’t a magic fat burner—but it is one of the most useful, versatile tools for anyone who cares about performance, energy, and long-term health.