Retatrutide Beginner Protocol: 12-Week Plan to Cut Fat Without the Crash

Retatrutide is the most potent triple-agonist in the GLP-1 pipeline, but the biggest mistake first-time users make is treating it like a standard weight-loss shot. Pairing Retat…

Retatrutide is the most potent triple-agonist in the GLP-1 pipeline, but the biggest mistake first-time users make is treating it like a standard weight-loss shot. Pairing Retatrutide with targeted NAD⁺ support turns a blunt calorie-cutting tool into a smooth metabolic reset. Use this blueprint to map out your first 12-week cycle.

Quick Wins You Can Expect

  • 15–25 lb fat loss on average within 12 weeks when paired with basic lifestyle habits
  • Dramatically lower “food noise,” fewer cravings, and calmer appetite
  • Stable daytime energy—even on low-calorie days—when NAD⁺ keeps mitochondrial throughput high
  • Better blood pressure, fasting glucose, and waist-to-height ratios with consistent tracking

Why Retatrutide + NAD⁺ Is the Ideal Starter Stack

CompoundWhat it DoesWhy It Matters in a Calorie Deficit
RetatrutideIntegrates GLP-1 + GIP + glucagon signaling to suppress appetite and raise mild thermogenesisCreates the energy deficit and keeps fat in motion
NAD⁺Replenishes the cofactor needed for β-oxidation and mitochondrial ATP productionConverts mobilized fat into usable energy so you don’t crash

When Retatrutide mobilizes fat, NAD⁺ makes sure the mitochondria can actually burn it cleanly—no lethargy, no “diet fog,” no need to white-knuckle through workouts.

The 12-Week Dosing Roadmap

PhaseWeeksRetatrutideNAD⁺Goal
Stabilize1–40.5–1.0 mg once weekly100 mg IM/SC, 5× weeklyCalm appetite, monitor GI tolerance
Build Momentum5–81.5–2.0 mg once weekly (or split 2×)100–150 mg, 5× weeklyLock in daily routine, reach 8000+ steps
Deepen Deficit9–122.5–3.0 mg once weekly (hold if side effects)150–200 mg, 5× weeklyAccelerate fat flux, prepare for maintenance

Rules that keep side effects low:

  • Hold each Retatrutide level for at least four weeks before considering an increase.
  • Split higher doses into two injections if nausea or fatigue shows up.
  • Inject NAD⁺ alone and buffer with saline to prevent stinging.

Daily Operating System

  1. Protein anchors: Aim for ~1 g/lb body weight. Budget 30–40 g per meal to protect lean mass.
  2. Movement minimums: 7k–10k steps and 2–4 resistance sessions per week. Walking on NAD⁺ days keeps fat oxidation humming.
  3. Sleep protocol: 7–9 hours nightly—Retatrutide users report easier bedtime with consistent pre-sleep routines.
  4. Hydration + electrolytes: Faster lipolysis means higher fluid turnover. Add electrolytes to at least one bottle per day.
  5. Sunday sync: Record weight, waist, energy (1–10), and hunger (1–10). Adjust food volume—not dose—first if progress stalls.

Troubleshooting the Common Roadblocks

  • Scale flatlines for two weeks: Confirm protein/steps, then increase Retatrutide by 0.5 mg only if nausea is under control. Avoid drastic calorie cuts.
  • Energy dips mid-cycle: Raise NAD⁺ to 150–200 mg, add one extra NAD⁺ day, and verify you’re not skipping carbs around training.
  • GI discomfort: Drop back to the previous Retatrutide dose, prioritize smaller protein-first meals, and add ginger + magnesium.
  • Strength sliding: Shift lifts to earlier in the day when NAD⁺ peaks, add creatine (5 g), and consider integrating Tesamorelin in the next cycle.

Transitioning After Week 12

  • Maintenance: Hold Retatrutide at 1–2 mg/week and use NAD⁺ on demanding training days.
  • Recomposition: Layer in Tesamorelin and L-Carnitine per the Intermediate Protocol once weight is stable.
  • Break: Cycle off Retatrutide for 4 weeks if appetite control is solid; continue NAD⁺ to maintain mitochondrial efficiency.

Key Takeaways

  • Retatrutide delivers best results when NAD⁺ keeps energy production high and fatigue low.
  • Small, deliberate titrations prevent GI issues and maintain compliance.
  • Protein, movement, hydration, and weekly metrics are the levers—not constant dose changes.
  • Plan for what happens after week 12 before you start, so momentum isn’t lost.

Follow this structure and your first Retatrutide cycle becomes a predictable 12-week reset instead of a guessing game.