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2 contributions to Castore: Built to Adapt
I just want to take a moment to say thank you to this community
Creating this space has genuinely been a dream come true. Being able to have thoughtful conversations, challenge ideas, learn out loud, and walk alongside people as they navigate their health has been incredibly meaningful to me. I don’t take it lightly that you choose to spend your time here, ask questions, give feedback, and share your experiences. That trust matters. What excites me most isn’t just protocols or tools it’s the mindset I see here. People being proactive instead of reactive. People choosing to learn, to stay curious, and to take ownership of their health. That kind of curiosity is powerful, and honestly, it makes this work fun. Health should feel empowering, not overwhelming, and learning should feel like an invitation, not a burden. I’m deeply grateful for the support, the conversations, the respectful disagreements, and the encouragement. This community pushes me to think more clearly, teach better, and keep refining my own understanding. I’m committed to continuing to learn, to get better, and to show up fully as part of this process alongside you, not above it. Looking ahead, I’m really excited about what’s coming next year. I’ll be expanding ways to work together more closely beyond one-off consults, for those who want deeper guidance and continuity. That said, this space will always be rooted in generosity, shared learning, and mutual respect. If you’re enjoying the conversations here, know that I care just as much about this community as I do about any one-on-one work. Thank you for being here, for being curious, and for being part of something that feels genuinely special. I’m grateful for every one of you, and I’m looking forward to continuing this journey together.
3 likes • Dec '25
Thanks for creating this space.
Fat Loss Decoded — Part 1: Mobilization and Transport (The Most Overlooked Step)
https://www.instagram.com/p/DM21Ta2PFWv/?utm_source=ig_web_copy_link Fat loss doesn’t start with cardio. Or fasting. Or even a calorie defecit it starts with a signal. That signal tells your body, “We need fuel. Tap into the reserves.”But unlocking stored fat is only half the story. The real challenge is getting that fat where it needs to go so it can actually be burned. Let’s break it down clearly: before fat can be used as energy, it has to go through two critical steps lipolysis and transport. Without both, there is no true fat loss. Fat is stored in your adipose tissue as triglycerides three fatty acids bound to a glycerol backbone. These are compact, stable, and metabolically inert. To use them for fuel, the body first breaks them apart. This is called lipolysis. Lipolysis is triggered when insulin is low and counter-regulatory hormones like adrenaline, cortisol, and growth hormone rise. Exercise, fasting, cold exposure, and stimulants can all push this button. The result: free fatty acids and glycerol are released into the bloodstream. But—and this is crucial—those fatty acids aren’t automatically burned.They’re just mobilized. Now they’re floating around, waiting to be used… or re-stored. If the next step transport doesn’t happen efficiently, those fatty acids never make it to the mitochondria. They get recycled, turned back into fat, or contribute to inflammation To reach the mitochondria, long-chain fatty acids require a shuttle system.That shuttle is carnitine. Carnitine binds to fatty acids and helps escort them across the inner mitochondrial membrane. This process is called the carnitine shuttle, and it’s the rate-limiting step in fat oxidation. If this system is underpowered, you’ll struggle to lose fat no matter how “in a deficit” you are. There are different forms of carnitine, each with unique properties. L-carnitine tartrate is used in performance and recovery settings. Acetyl-L-carnitine (ALCAR) crosses the blood-brain barrier and supports both mental energy and mitochondrial function. Carnitine fumarate adds cardiovascular support and works well in metabolic dysfunction. Injectable carnitine bypasses gut absorption issues and results in higher blood and tissue concentrations, making it especially effective when timed around fasted cardio or training.
1 like • Dec '25
@Anthony Castore Great post. Thank you. It it true that oral l-carnitine can cause some gut bacteria problems (but garlic extract can protect one from it to some degree)?
1 like • Dec '25
@Anthony Castore thank you for explanation.
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Tomasz Lepkowski
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15points to level up
@tomasz-lepkowski-9827
Health & strength

Active 2h ago
Joined Dec 8, 2025
Poland
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