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Most people build their peptide stack around what they want — fat loss, muscle, longevity — and wonder why their results are mediocre. The problem isn't the compounds. It's that they're picking them without understanding what the body is actually asking for.

Anthony Castore is back for his third appearance on the DDT Method Podcast, and this time he and Drew go deep on the concept most in the peptide world completely skip: your training stimulus sends a specific cellular signal, and your compounds need to be directionally aligned with that signal to amplify results — not create noise.

Metabolic training creates a completely different biological environment than hypertrophic training, which is completely different from neural/strength training. Each calls for a different set of tools. Using the wrong ones isn't neutral — it's actively working against the adaptation you're chasing.

From MOTS-c and SLU PP-332 for metabolic phases, to IGF-DES and epicatechin for hypertrophy, to cerebrolysin and S-lactate for neural output — this is the pairing guide nobody made. Plus: the neutral osmolite protocol that makes every other compound in your stack work better, and why BDNF is useless if you don't pair it with the right demand.

5 Key Takeaways

• Why taking a fat-burning peptide (SLU PP-332) before weight training can actively work against your workout
• MOTS-c is a stress response, not just cellular rejuvenation — and that changes everything about how you dose and cycle it
• The neutral osmolite protocol that makes every peptide in your stack more receivable (most people skip this entirely)
• The exact compounds Anthony pairs with metabolic, hypertrophic, and neural training phases — and the mechanism behind each
• Why raising BDNF is pointless without pairing it with the right cognitive or physical demand

Chapters

0:00 - SLU PP-332 Timing: Fat Burning vs. Weight Training

7:22 - Episode Intro + The Core Concept

14:11 - What Is Metabolic Training (And Why It Matters)

18:13 - Top Peptides for Metabolic Training Phases

23:54 - MOTS-c: The Stress Response Nobody Talks About

25:56 - MOTS-c Dosing — Dr. Seeds Protocol Breakdown

33:34 - MOTS-c + B Vitamins: What You're Probably Getting Wrong

40:50 - Cellular Hydration — The Foundation Everything Else Sits On

46:16 The Full Neutral Osmolite Stack

52:42 - SLU PP-332 & BAM-15: Where They Actually Belong

1:00:46 - Peptides for Hypertrophy Training

1:08:24 - Epicatechin, Fortetropin & Myostatin Inhibitors

1:15:42 - Why Zone 2 Is the Weak Link in Most Stacks

1:16:37 - Neural Training: Pre-Workout Compounds for Max Output

1:21:02 - Cerebrolysin, C-Max & S-Lactate for Neural Adaptations

1:23:52 - BDNF: Why Raising It Isn't Enough

1:25:28 - Wrap-Up + How to Find Anthony

Connect with Anthony

Instagram: @anthonycastore

Skool Community: Castore Built to Adapt: https://www.skool.com/castore-built-to-adapt-7414