The Complete GLP-1 Starter Guide
The Complete GLP-1 Starter Guide
Everything you need to know about GLP-1 medications, dosing protocols, nutrition & making the most of your results.
Read the Guide ↓What's Inside the Guide
A no-BS, clinically-backed resource covering everything from your first injection to long-term maintenance.
Medications Covered
Complete breakdowns with clinical trial data, dosing protocols, and head-to-head comparisons.
Full Chapter Breakdown
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Read the full guide — no fluff, no gatekeeping. Just the clinical data, protocols, and practical advice you need.
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THE COMPLETE GLP-1 STARTER GUIDE
Everything You Need to Know About GLP-1 Medications, Dosing, Nutrition & Making the Most of Your Results
This guide is for educational purposes only. GLP-1 medications require a valid prescription and medical supervision. Always consult a licensed healthcare provider before starting, changing, or stopping any medication.
INTRODUCTION: WHY GLP-1s ARE CHANGING EVERYTHING
GLP-1 receptor agonists have rapidly become the most talked-about class of medications in metabolic medicine — and for good reason. Originally developed to manage type 2 diabetes, these drugs have demonstrated remarkable efficacy for weight loss, metabolic health, cardiovascular risk reduction, and even emerging benefits in neurological conditions.
But with popularity comes misinformation. Most people starting a GLP-1 journey have questions their prescribers don't have time to answer: Which medication is right for me? When do I increase my dose? What should I eat? Why am I losing muscle? What supplements do I actually need?
This guide answers all of that. We cover every major GLP-1 medication, clinical study results, starting doses, escalation protocols, and the non-negotiable nutritional fundamentals that will determine whether you come out of this leaner, healthier, and stronger — or depleted and worse off.
Read this in full before you inject anything.
WHAT ARE GLP-1 MEDICATIONS?
The Science in Plain English
GLP-1 (glucagon-like peptide-1) is a hormone naturally produced in your gut in response to eating. It signals your pancreas to release insulin, tells your brain you're full, slows gastric emptying, and suppresses glucagon.
GLP-1 receptor agonists are synthetic versions of this hormone — engineered to last far longer in the body than the natural hormone (which is degraded within minutes).
The Core Effects
- Appetite suppression — you feel full faster and stay full longer
- Reduced food cravings — particularly for high-calorie, hyper-palatable foods
- Slowed gastric emptying — stabilises blood sugar after meals
- Improved insulin sensitivity
- Cardiovascular protection — particularly demonstrated with semaglutide
- Emerging research: neuroprotection, addiction reduction, inflammation
GLP-1 medications don't burn fat directly. They work by making it dramatically easier to eat in a calorie deficit. Your nutrition choices while on these medications still matter enormously.
THE GLP-1 MEDICATIONS — A COMPLETE BREAKDOWN
What Is It?
Semaglutide is a GLP-1 receptor agonist developed by Novo Nordisk. It's available as a weekly subcutaneous injection (Ozempic / Wegovy) and a daily oral tablet (Rybelsus). It is the most extensively studied GLP-1 for weight loss.
Key Clinical Studies
- STEP 1: 14.9% average body weight reduction over 68 weeks. 86.4% achieved ≥5% weight loss.
- SELECT trial: Reduced major cardiovascular events by 20% in adults with overweight/obesity.
- OASIS 1 (oral 50mg): 15.1% body weight loss at 68 weeks — comparable to injectable.
Starting Dose & Escalation
| Phase | Dose | Timing | Notes |
|---|---|---|---|
| Weeks 1–4 | 0.25mg/week | Once weekly, same day | Initiation dose — not therapeutic |
| Weeks 5–8 | 0.5mg/week | Once weekly | First therapeutic dose |
| Weeks 9–12 | 1.0mg/week | Once weekly | Increase if tolerating well |
| Weeks 13–16 | 1.7mg/week | Once weekly | Obesity dose progression |
| Week 17+ | 2.4mg/week | Once weekly | Target maintenance dose (Wegovy) |
Only move up if you're tolerating the current dose well. Nausea or significant GI distress are signs to stay at the current dose for another 4 weeks.
What Is It?
Tirzepatide (Eli Lilly) is a dual GIP/GLP-1 receptor agonist. This dual mechanism produces superior weight loss compared to GLP-1-only medications.
Key Clinical Studies
- SURMOUNT-1: 20.9% average body weight reduction — ~22.5kg over 72 weeks. 57% achieved ≥20% weight loss.
- SURPASS-2: Nearly double the weight loss vs semaglutide 1mg.
Starting Dose & Escalation
| Phase | Dose | Timing | Notes |
|---|---|---|---|
| Weeks 1–4 | 2.5mg/week | Once weekly | Mandatory initiation dose |
| Weeks 5–8 | 5mg/week | Once weekly | First therapeutic dose |
| Weeks 9–12 | 7.5mg/week | Once weekly | Escalate if tolerated |
| Weeks 13–16 | 10mg/week | Once weekly | Continue escalation |
| Weeks 17–20 | 12.5mg/week | Once weekly | Near-maximum dose |
| Week 21+ | 15mg/week | Once weekly | Maximum approved dose |
Clinical data consistently shows tirzepatide produces significantly greater weight loss (~20–21% vs ~15%). However, individual response varies. Cost, insurance coverage, availability, and tolerance all factor in.
What Is It?
Liraglutide was the first GLP-1 approved for both diabetes and obesity. Requires daily injection — less convenient but has the longest safety record.
Key Clinical Studies
- SCALE Obesity: 8.4% weight loss over 56 weeks. 63.2% achieved ≥5%.
- LEADER: Reduced cardiovascular events by 13% in high-risk T2D patients.
| Phase | Dose | Timing | Notes |
|---|---|---|---|
| Week 1 | 0.6mg/day | Once daily | Initiation dose |
| Week 2 | 1.2mg/day | Once daily | First therapeutic dose |
| Week 3 | 1.8mg/day | Once daily | Escalate if tolerated |
| Week 4 | 2.4mg/day | Once daily | Pre-maximum dose |
| Week 5+ | 3.0mg/day | Once daily | Target obesity dose (Saxenda) |
What Is It?
Dulaglutide is a weekly GLP-1 agonist primarily for type 2 diabetes. Produces modest weight loss, frequently prescribed for cardiovascular benefit alongside glycaemic control.
| Phase | Dose | Timing | Notes |
|---|---|---|---|
| Weeks 1–4 | 0.75mg/week | Once weekly | Starting dose |
| Week 5+ | 1.5mg/week | Once weekly | Standard therapeutic dose |
| If needed | 3.0mg/week | Once weekly | Higher dose |
| Maximum | 4.5mg/week | Once weekly | Highest approved dose |
What Is It?
The first GLP-1 agonist approved (2005). Available twice daily or weekly extended-release. More modest weight loss than newer agents.
| Phase | Dose | Timing | Notes |
|---|---|---|---|
| Byetta (BID) | 5mcg twice daily | Before 2 main meals | Start here for 4 weeks |
| Byetta escalation | 10mcg twice daily | Before 2 main meals | If tolerated after 4 weeks |
| Bydureon (QW) | 2mg/week | Once weekly | No titration required |
What Is It?
Retatrutide (Eli Lilly, Phase 3) is a triple agonist — GLP-1, GIP, and glucagon receptor agonist. The addition of glucagon receptor activity meaningfully increases energy expenditure by directly activating thermogenic pathways.
Why It's Different: The Triple Mechanism
- GLP-1 agonism: appetite suppression, satiety, blood sugar control
- GIP agonism: enhanced insulin secretion, improved fat storage regulation
- Glucagon receptor agonism: increases hepatic fat oxidation and resting energy expenditure — you burn more calories at rest
Key Clinical Data
- Phase 2: 24.2% average body weight reduction at 48 weeks — the largest ever recorded.
- ~24% at 48 weeks vs tirzepatide's ~21% at 72 weeks — faster and greater efficacy.
| Phase | Dose | Timing | Notes |
|---|---|---|---|
| Weeks 1–4 | 2mg/week | Subcutaneous injection | Titration start |
| Weeks 5–8 | 4mg/week | Once weekly | Escalate if tolerated |
| Weeks 9–12 | 8mg/week | Once weekly | Continue escalation |
| Week 13+ | 12mg/week | Once weekly | Maximum Phase 2 dose |
Retatrutide is not yet approved. Access is currently through clinical trials or compounding pharmacies in research contexts. Use only under direct medical supervision.
What Is It?
Cagrilintide is a long-acting amylin analogue — a completely different class from GLP-1 agonists. Cagrisema is the fixed-ratio combination of cagrilintide 2.4mg + semaglutide 2.4mg in a single weekly injection.
Key Clinical Data
- CagriSema Phase 2: 15.6% weight loss at 32 weeks — exceeding either drug alone.
- REDEFINE Phase 3: Early data suggests 20%+ weight loss.
Cagrilintide and CagriSema are not yet FDA-approved. Phase 3 data is anticipated in 2025–2026.
INJECTION TECHNIQUE & TIMING
Where to Inject
- Abdomen: Most common site. Inject 2 inches away from navel.
- Thigh: Outer thigh, mid-way between knee and hip.
- Upper arm: Outer area only. May require assistance.
Rotate sites each week. Using the same spot can cause lipohypertrophy which impairs absorption.
Technique
- Use a fresh needle every time
- Inject at room temperature — cold medication increases discomfort
- Clean the site with an alcohol swab and allow to dry
- Inject slowly, hold for 5-10 seconds before withdrawing
- Do not rub the injection site after
Best Time to Inject
For weekly injections: same day each week, any time of day. Consistency matters more than timing.
MANAGING SIDE EFFECTS
Common Side Effects & Solutions
| Side Effect | Why It Happens | How to Manage |
|---|---|---|
| Nausea | Slowed gastric emptying; GI adaptation | Eat smaller meals. Avoid fatty/spicy foods. Eat slowly. |
| Vomiting | Excessive GI motility disruption | Pause escalation. Stay hydrated. Do not increase dose until resolved. |
| Bloating / Gas | Changes in gut motility and microbiome | Smaller meals, digestive enzymes, avoid carbonated drinks. |
| Constipation | Slowed gut transit | Increase fibre gradually, hydrate well, consider magnesium glycinate. |
| Acid reflux | Delayed gastric emptying | Elevate head at night, avoid lying down after meals, reduce acidic foods. |
| Fatigue | Caloric deficit, reduced food intake | Ensure adequate protein and micronutrients. |
| Muscle loss | Insufficient protein; caloric restriction | Critical issue — see Nutrition section. |
| Injection site reactions | Technique or product sensitivity | Rotate sites, ensure room-temp medication, use fresh needles. |
NUTRITION — THE MAKE-OR-BREAK FACTOR
Not eating enough protein. Most people on these medications eat far too little — and what little they eat is often nutritionally poor. The result: 30–50% muscle mass loss, micronutrient deficiencies, fatigue, and metabolic damage.
Protein: Your Non-Negotiable Priority
- Minimum target: 1.6g protein per kg body weight daily. On aggressive restriction, aim for 2.0–2.4g/kg.
- Spread across meals: 3–4 protein-containing meals daily (~30–40g per serving).
- Sources: Lean meats, fish, eggs, Greek yoghurt, cottage cheese, whey protein, tofu, legumes.
If your appetite is suppressed, prioritise protein-first eating. Eat your protein source before vegetables and carbohydrates.
Caloric Targets
- Recommended deficit: 500–750 calories below TDEE — no more.
- If losing more than 1.5% of body weight per week, you're likely losing significant muscle.
Micronutrients at Risk
- B vitamins — energy, nervous system, red blood cells
- Vitamin D3 — immune function, bone health, mood
- Magnesium — muscle function, sleep, 300+ enzymatic reactions
- Zinc — testosterone, immune function
- Iron — oxygen transport, energy
- Omega-3s — inflammation, cardiovascular, cognitive
- Electrolytes — fluid balance, muscle contraction
Eating 1,000–1,500 calories per day of whole food cannot provide adequate micronutrients for an active adult. Supplementation is not optional — it is essential.
Carbohydrates & Fats
- Carbs: Prioritise complex, fibrous sources — oats, sweet potato, legumes, vegetables.
- Fats: Include healthy fats for hormonal support and vitamin absorption. Do not go ultra-low fat.
- Fibre: Aim for 25–35g daily for bowel health and microbiome diversity.
AD1 BY PROJECT AD — THE DAILY NON-NEGOTIABLE
Why AD1 Is Perfect for GLP-1 Users
- Full-spectrum micronutrient coverage — bioavailable forms (methylated B12 and folate)
- Immune support — zinc, vitamin C, elderberry
- Energy & metabolic support — B-vitamins, CoQ10 precursors
- Hormonal support — zinc, magnesium, vitamin D3
- Cardiovascular health — vitamin K2, antioxidants
- Gut health — sea moss complex, digestive support
Standout Ingredients
COLLAGEN COMPLEX
GLP-1-induced caloric restriction accelerates collagen breakdown: skin loses elasticity, joints lose cushioning. AD1's collagen complex provides the amino acid building blocks to maintain skin structure and joint integrity throughout your fat loss protocol.
SHILAJIT
Shilajit contains fulvic acid and 80+ trace minerals. Fulvic acid enhances bioavailability of other nutrients. Clinically demonstrated effects on testosterone, mitochondrial function, and physical performance.
SEA MOSS COMPLEX
Contains 92 of 102 minerals the body uses. Thyroid support via natural iodine, gut health via mucilaginous compounds, and broad trace mineral supplementation.
ELECTROLYTE BLEND
Non-negotiable on GLP-1 medications. Appetite suppression reduces dietary sodium, potassium, and magnesium. AD1's blend provides balanced ratios every day.
AD1 — One scoop. Complete Coverage. Every Day.
Whether you're on a GLP-1 or not, this is the foundation every health-conscious adult should build from.
RAVENOUS BY PROJECT AD — SOLVING THE BLOATING & DIGESTION PROBLEM
One of the most consistent complaints from GLP-1 users is digestive discomfort: bloating, gas, constipation, nausea. Severe GI side effects are the primary reason people discontinue these medications.
Key Ingredients
- Digestive Enzyme Complex — breaks down protein, fat, and carbohydrates before they ferment in the gut
- Betaine HCl — supports stomach acid production
- Ginger Root Extract — accelerates gastric emptying and reduces nausea
- Peppermint — reduces spasms, bloating, and trapped gas
- Probiotics & Prebiotic Fibre — maintains gut barrier integrity
- Artichoke Leaf Extract — stimulates bile production for fat digestion
AD1 daily: fills your micronutrient gaps, supports energy, hormones, immunity.
Ravenous with meals: eliminates bloating, maximises protein absorption.
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THE LIFESTYLE FUNDAMENTALS THAT AMPLIFY YOUR RESULTS
Resistance Training Is Non-Negotiable
- Minimum: 3 resistance training sessions per week
- Focus on compound movements: squats, deadlifts, pressing, pulling
- Progressive overload: maintain or increase weight even in a deficit
Sleep: The Overlooked Amplifier
- Target 7–9 hours per night
- Consistent sleep/wake times regulate circadian GLP-1 secretion
- Magnesium glycinate improves sleep quality
Hydration
GLP-1 medications can suppress thirst alongside hunger. Aim for 2.5–3.5L of water daily. Add electrolytes if exercising.
Alcohol
Alcohol is more problematic on GLP-1 medications — altered absorption rates and calorie-dense with no nutrition. Minimise during active weight-loss phases.
CYCLING & LONG-TERM PROTOCOL CONSIDERATIONS
GLP-1 obesity trials run up to 72–104 weeks. Weight regain following discontinuation is well-documented — participants regained ~two-thirds of lost weight within one year of stopping semaglutide.
This doesn't mean you must use these medications forever. It means the lifestyle changes must become permanent. The medication creates the window. You build the habits.
These medications are tools, not solutions. The most successful outcomes come from patients who use the appetite suppression window to permanently restructure their relationship with food.
QUICK REFERENCE — GLP-1 MEDICATION COMPARISON
| Medication | Frequency | Max Dose | Avg Weight Loss | CV Data | Approval |
|---|---|---|---|---|---|
| Semaglutide | Weekly | 2.4mg | ~15% | Yes (SELECT) | T2D + Obesity |
| Tirzepatide | Weekly | 15mg | ~21% | Yes (SURPASS) | T2D + Obesity |
| Liraglutide | Daily | 3.0mg | ~8% | Yes (LEADER) | T2D + Obesity |
| Dulaglutide | Weekly | 4.5mg | ~5% | Yes (REWIND) | T2D only |
| Exenatide | Daily/Weekly | 10mcg/2mg | ~3% | Neutral | T2D only |
| ⭐ Retatrutide | Weekly | 12mg (Ph2) | ~24% | Pending | Investigational |
| CagriSema | Weekly | Sema 2.4mg + Cagri 2.4mg | ~20%+ | Pending | Investigational |
READY TO GO DEEPER?
This free guide has given you the foundation. The Advanced GLP Playbook takes you to a completely different level.
THE ADVANCED GLP PLAYBOOK
The Strategies Top Professionals, Celebrity Coaches & Elite Executives Won't Tell You
This isn't information you'll find on forums or from your prescribing physician. This is operational intelligence from people who have run these protocols at the highest level.
What's Inside:
- Strategic cycling protocol — structured phases to maximise fat loss while protecting muscle
- Advanced retatrutide protocols — cutting-edge dosing strategies
- The muscle-preservation stack — exact supplement and training protocol
- Metabolic priming pre-cycle — how to set up before starting
- GLP-1 + peptide synergy protocols
- Post-cycle transition — coming off without regaining weight
- Biomarker tracking — exact blood panels to run
- Case studies — real-world outcomes with full protocol breakdowns
YOUR DAILY GLP-1 SUPPLEMENT PROTOCOL
Protect your results. Protect your health. Make the most of every week you're on these medications.
| Product | Purpose | When to Take |
|---|---|---|
| AD1 by Project AD | Complete micronutrient coverage, energy, hormonal preservation, immune function | Daily, with breakfast |
| Ravenous by Project AD | Digestive enzyme support, bloating elimination, improved protein absorption | With main meals |
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Project AD — built for people who take their health seriously.