Articles — GLPTree

Wellness flat lay representing GLP-1 and intermittent fasting: clock, water with lemon, soft-boiled egg

GLP-1 Education

GLP-1 and Intermittent Fasting 2026: When Combining Helps, When It Backfires

Should you do IF on Ozempic, Wegovy, or Mounjaro? Hypoglycemia risk, muscle loss, and an electrolyte protocol that protects results.

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Keto-friendly food flat lay: avocado, macadamia nuts, aged cheese, fresh thyme

GLP-1 Education

GLP-1 and Keto Diet 2026: Does Stacking Them Work or Is It Overkill?

Stacking keto with Ozempic, Wegovy, or Mounjaro? Keto-flu meets GLP-1 nausea, muscle preservation, and the keto-rebound risk when titrating off.

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Editorial close-up of a single oval pill in a ceramic dish next to a glass of water — Foundayo oral GLP-1

GLP-1 Education

Foundayo (Orforglipron) 2026: The Complete Oral GLP-1 Pill Guide

Foundayo (orforglipron) FDA approved April 1, 2026 — the first oral GLP-1 pill with no food restrictions. Cost, efficacy, side effects, drug interactions.

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Soft flat lay with a planner, pills in a pastel dish, dried lavender — GLP-1 and birth control pill interaction

GLP-1 Education

GLP-1 and Birth Control Pills 2026: The Interaction Risk Every Woman Should Know

Mounjaro, Zepbound, and Foundayo all warn that oral birth control may fail. Safe contraceptive options and exactly how long backup is needed.

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Strength-training flat lay: dumbbells, resistance band, protein powder, towel — preserving muscle on GLP-1

GLP-1 Education

GLP-1 Muscle Loss 2026: The Evidence-Based Guide to Keeping Your Strength

GLP-1 users move 11% less per ENDO 2026 data. Resistance training, protein, and ketone ester protocol that preserves 92% of muscle mass.

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Soft watercolor curve illustration — stopping GLP-1 cold turkey

Cost

Stopping GLP-1 Cold Turkey in 2026: What Two-Thirds Regain Looks Like

What clinical trials show happens when you stop GLP-1s — STEP 1 Extension, SURMOUNT-4, and the 2026 meta-analysis — plus a safer off-ramp.

9 min read Read more

Retatrutide

Retatrutide Weight Loss Results: What Phase 2 Showed and What Phase 3 Will Tell Us

A complete look at the Phase 2 NEJM data (24.2% mean weight loss) and the May 2026 TRIUMPH-1 Phase 3 topline (28.3% at 80 weeks). What the responder rates and unreached plateau actually mean.

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Stylized scientific illustration of triple-agonist mechanism

Retatrutide

Triple Agonist Weight Loss Drugs Explained: How Retatrutide Combines GLP-1, GIP, and Glucagon

The mechanism behind the next generation of metabolic drugs. Why adding glucagon to GLP-1 and GIP increases energy expenditure, not just appetite suppression — and what it means for tolerability and safety.

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Neoclassical regulatory building facade in warm morning light — FDA approval timing

Retatrutide

Retatrutide FDA Approval Date: What's Known About the Timeline (2026 Update)

Lilly's confirmed Q4 2026 NDA filing intent, the TRIUMPH Phase 3 readout schedule, and three realistic FDA decision scenarios ranging from mid-2027 to early 2028.

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Retatrutide

Retatrutide Titration Schedule: How the Trial Doses Were Escalated

Side-by-side Phase 2 vs. TRIUMPH-1 Phase 3 dose-escalation schedules, the rationale for the added 6 mg step, and how retatrutide titration compares to tirzepatide and semaglutide.

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Split molecular illustration: retatrutide versus tirzepatide on deep teal background

Comparison

Retatrutide vs Mounjaro: Head-to-Head Comparison of Trial Results

Why the right Mounjaro comparator is SURMOUNT-1 (obesity) and not SURPASS (T2D), and what the TRIUMPH-5 head-to-head trial will settle by late 2026.

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Split molecular illustration comparing tirzepatide and retatrutide receptor agonism

Comparison

Tirzepatide vs Retatrutide: Which Produces More Weight Loss in the Trials?

A methodologically rigorous cross-trial comparison of SURMOUNT-1 (tirzepatide, 20.9%) and TRIUMPH-1 (retatrutide, 28.3%) — plus what each methodological difference can and can't explain.

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Plated protein foods: grilled chicken, eggs, and cottage cheese on a warm-toned ceramic plate

Nutrition

A Protein Strategy for Ozempic and Wegovy Users

How to meet protein targets when appetite is suppressed on Ozempic or Wegovy. Sample meal patterns, practical tips, and why protein protects muscle.

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Stylized illustration of a molecular structure on a deep teal background

Research Peptides

Peptide Therapy for Weight Loss: A Skeptical Guide to AOD-9604, Tesamorelin, and the 'Research Peptide' Market

An honest, evidence-based guide to peptides marketed for fat loss — AOD-9604, tesamorelin, BPC-157, and others — including what evidence exists, legal status, and consumer warnings.

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Stylized molecular illustration on deep teal background — Ozempic vs Wegovy

Comparison

Ozempic vs. Wegovy: What's Actually Different?

Ozempic and Wegovy are the same molecule — semaglutide — but with key differences in approved dose, indication, insurance, and cost. Here's the full breakdown.

9 min read Read more

Next-Gen

The Next Generation of Weight Loss Medications: Retatrutide, Survodutide, and What's Coming After Tirzepatide

Plain-English guide to next-gen weight loss drugs in late-stage trials: retatrutide, survodutide, cagrisema — what they are, how they work, and what the data shows.

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Stylized molecular illustration on deep teal background — Mounjaro vs Zepbound

Comparison

Mounjaro vs. Zepbound: Choosing Between Tirzepatide Brands

Mounjaro and Zepbound are the same drug — tirzepatide — in different packaging. Here's what determines which you get, and how costs differ.

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A clear glass of cool water with a fresh mint sprig — calm and restorative

Side Effects

Managing GLP-1 Side Effects: Nausea, Fatigue, and 'Sulfur Burps

Evidence-based strategies for managing GLP-1 side effects including nausea, fatigue, constipation, and sulfur burps on Ozempic, Wegovy, or Mounjaro.

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Soft watercolor S-curve illustration of a figure walking along a winding weight-loss path

Getting Started

How Much Weight Will You Lose on a GLP-1? Realistic Expectations from Clinical Trials

Plain-English breakdown of STEP, SURMOUNT, and SCALE trial data — what average weight loss on Wegovy, Mounjaro, and Ozempic looks like in the real world.

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Soft watercolor S-curve illustration representing a weight-loss plateau

Timeline

Plateaus on GLP-1 Medications: Why They Happen and What to Do

Why weight loss plateaus happen on Ozempic, Wegovy, and Mounjaro — the biology behind them, when to expect one, and evidence-based strategies to move forward.

9 min read Read more

Stylized molecular illustration on deep teal background — GLP-1 vs GLP-2

Biology

GLP-1 vs GLP-2: What's the Difference and Why It Matters

GLP-1 suppresses appetite and drives weight loss. GLP-2 is a gut growth hormone for short bowel syndrome. Learn why GLP-2 is not a weight loss therapy — and what's actually true.

9 min read Read more

Wellness flat lay: notebook, glass of water, blueberries, and measuring tape on a cream surface

Dose

GLP-1 Dose Escalation: Why It Matters and What to Expect

A complete guide to GLP-1 dose escalation — why slow titration exists, what happens at each step on Wegovy, Ozempic, Zepbound, and when to ask about pausing.

9 min read Read more

Editorial flat lay: leather wallet, reading glasses, ceramic coffee cup, and an open notebook

Cost

The Real Cost of GLP-1 Medications in 2026 (With and Without Insurance)

Full 2026 breakdown of GLP-1 medication costs with and without insurance — Ozempic, Wegovy, Mounjaro, Zepbound — plus savings cards, GoodRx, and compounding options.

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Wellness flat lay representing the first four weeks on a GLP-1

Getting Started

What to Expect in Your First 4 Weeks on a GLP-1 Medication

A week-by-week guide to your first month on Ozempic, Wegovy, or Mounjaro — appetite changes, side effects, and what's normal.

9 min read Read more

Plated protein foods on a warm-toned ceramic plate — eating on GLP-1

Nutrition

Eating on a GLP-1: Calorie Targets, Macros, and Why Less Isn't Always Better

How to set calorie and macro targets on Ozempic, Wegovy, or Mounjaro. Why extreme undereating backfires, muscle loss risks, and a practical nutrition framework.

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Editorial flat lay representing compounded GLP-1 medications

Cost

Compounded GLP-1s: What You Need to Know About Compounded Semaglutide and Tirzepatide

A complete guide to compounded semaglutide and tirzepatide — legal status in 2026, FDA stance, safety differences vs. branded drugs, cost comparison, and what to watch for.

11 min read Read more

Stylized molecular illustration on deep teal background — CagriSema and amylin

Next-Gen

CagriSema and the Amylin Story: Why Combination Therapies Are the Future of Weight Loss

CagriSema Phase 3 data explained — how combining semaglutide with the amylin analog cagrilintide produced 22.7% weight loss, and why amylin matters for obesity treatment.

10 min read Read more

Evidence-based guides.