There is no approved retatrutide meal plan. Here's how to plan anyway.
Retatrutide — a GIP, GLP-1 and glucagon triple agonist — is still in clinical development and has not been approved by any regulator. Any page selling you a precise "retatrutide diet" is guessing. What you can do is borrow the food framework proven useful on approved GLP-1 medicines, and have the routine — and the meals — ready.
A diet plan for an unapproved medicine is a contradiction.
A real medication meal plan is built on approved prescribing information: dose schedule, side-effect profile, Consumer Medicine Information. Retatrutide has none of that in public existence — it has completed phase 2 and much of its phase 3 TRIUMPH trial program, and regulators are yet to rule. Trial participants ate under supervised research protocols, which are not published as public food guidance.
Just as important: never buy "retatrutide" from peptide websites to pair with any plan you read online. Illicit products may be counterfeit, contaminated or wrongly dosed. Only approved, doctor-prescribed medicines from a licensed pharmacy — at any time, for any medicine. Our retatrutide food guide covers the regulatory detail.
✓ Phase 2 results published in NEJM (2023)
✓ Phase 3 TRIUMPH program — several studies completed
✓ A proven food playbook from approved GLP-1 medicines
✗ TGA / FDA approval
✗ An approved dose schedule or CMI
✗ Any evidence-based "retatrutide diet"
✗ Any safe or legal online source of retatrutide
A small-appetite day, structured.
This is general GLP-1-style food planning — the pattern clinicians and dietitians already use with approved appetite-reducing medicines. It is not a retatrutide protocol, and your own clinician should personalise it.
Protein before coffee logic.
A 20–35g protein breakfast — eggs, Greek yoghurt, a protein-forward frittata — anchors the day. Skipping breakfast on a suppressed appetite usually means the day's protein never catches up.
A main you can finish.
A 250–400 calorie main with 30g+ protein beats a large plate abandoned halfway. Eat slowly, stop at fullness — pushing past the signal is the most commonly reported mistake on appetite-reducing medicines.
Lighter, earlier, gentler.
Slowed digestion makes big late dinners the hardest meal of the day. A modest protein-anchored dinner, lower in fat on unsettled days, tends to sit best — grilled and steamed over fried and creamy.
Fibre, fluids, honesty.
Fluids between meals rather than gulped with them, fibre daily to keep digestion moving on less food, and one or two planned protein snacks rather than grazing. Track protein, not perfection.
- Daily protein: commonly discussed at 1.2–1.6g per kilogram of body weight, spread across meals — a target to confirm with your clinician. The protein on GLP-1 guide does the arithmetic.
- Per meal: 25–50g protein per sitting, because a suppressed appetite rarely allows catch-up later.
- Resistance training: commonly 2–3 sessions weekly in published lean-mass guidance — the second lever, alongside protein, for keeping muscle during rapid weight loss.
- Unsettled days: smaller, plainer, lower-fat plates; see GLP-1 nausea foods for the fuller pattern.
The plan above, cooked for you.
Preptide's menu is that framework as food: ON-phase mains around 250–350 calories with 30g+ protein, TRANSITIONING and MAINTENANCE portions as appetite returns, and snacks and drinks separated so a small-and-often day stays countable. Every dish publishes calories, protein, carbs and fat before you order.
Fresh, never frozen, cooked in our Australian kitchen and delivered chilled weekly across Sydney, Melbourne and Brisbane from $11.65–$12.95 per meal. Skip, pause or change phase anytime. It's food — no prescription, no medicine, no waiting on regulators.
Sources behind this page
- Jastreboff et al., 2023, New England Journal of Medicine — phase 2 retatrutide obesity trial.
- ClinicalTrials.gov: TRIUMPH-1 — phase 3 retatrutide study record.
- Eli Lilly: what to know about retatrutide — non-approval and illicit-product warnings.
- Wharton et al., 2022, Postgraduate Medicine — meal-pattern strategies for GLP-1-class gastrointestinal effects.
- Morton et al., 2018, British Journal of Sports Medicine — protein and resistance training for lean mass.
Asked and answered.
Is there an official retatrutide meal plan or diet?
No. Retatrutide is not approved by the TGA, FDA or any other regulator, so there is no Consumer Medicine Information, no approved dose schedule and no official diet or meal plan. Pages that publish a precise "retatrutide diet" are presenting general weight-loss eating patterns under an unapproved medicine's name. Any genuine plan would come from your prescriber and dietitian after an approval — not from a website.
What food framework can I use for planning purposes?
The practical framework comes from approved GLP-1-class medicines, whose appetite effects retatrutide is designed to extend: three small protein-anchored meals rather than one or two large ones; roughly 25–50g of protein per meal so daily protein survives a smaller appetite; lower-fat, plainer plates on unsettled days; fibre and fluids every day; and stopping at fullness rather than pushing through it. Treat it as general nutrition planning to discuss with your clinician, not a retatrutide protocol.
How much protein would a retatrutide-style appetite need?
No retatrutide-specific target exists. On approved GLP-1-class medicines, daily protein is commonly discussed at around 1.2–1.6g per kilogram of body weight, spread across meals, alongside resistance training to help protect lean mass during rapid weight loss. The faster and further weight drops — and triple-agonist trial results were among the largest recorded — the more that lean-mass logic matters. Confirm your personal target with your doctor or an Accredited Practising Dietitian.
Should I buy retatrutide from a peptide website to go with this plan?
Absolutely not. Retatrutide cannot be lawfully sold in Australia, and products offered online as retatrutide sit outside every pharmaceutical safeguard — Eli Lilly warns they may contain unknown ingredients, contaminants, the wrong dose or the wrong substance. Only ever use approved medicines prescribed by your own doctor and dispensed by a licensed pharmacy. No meal plan is worth building around an illegal, unverified injection.
What should I do while I wait for approval?
Talk to your doctor about the approved options that exist today if weight management is a live medical question for you. On the food side, build the habits that will transfer to any GLP-1-class medicine: protein-anchored small meals, visible macros, fibre and fluids. Preptide's phase-labelled menu is designed around exactly that routine — no prescription needed, because it's food.
Preptide is food, not medication, and this page is not medical advice. Preptide does not diagnose, treat, prevent, mitigate or cure any condition, and does not supply, recommend, advertise or facilitate access to retatrutide or any prescription or investigational medicine. The framework on this page is general nutrition planning drawn from approved GLP-1-class experience, not a retatrutide protocol. Only ever use approved, doctor-prescribed medicines dispensed by a licensed pharmacy; never purchase peptides from unregulated sellers. Regulatory status can change — check the TGA and the sponsor's official information, and consult your doctor or an Accredited Practising Dietitian before changing your diet. Read our full Health Acknowledgement →