How long does the first-dose adjustment period last?

Most people feel the strongest side effects in days 2–5 after each dose increase. Once you're stable at a maintenance dose, side effects usually fade significantly within 4–6 weeks total.

Should I keep eating normally on injection day?

Eat smaller portions of familiar foods. Avoid heavy, fatty, or fried meals for 24 hours after injection — these dramatically increase the odds of nausea.

Do I really need a sharps container?

Yes. It's required by most states and pharmacies will give you a free disposal program if you ask. A $8 container lasts most patients 6+ months.

Can I keep my pen at room temperature?

Unopened pens must stay refrigerated. Once in use, most brands allow up to 28–56 days at room temperature — check your specific pen's instructions. Never freeze.

What's the single most useful thing on this list?

Pre-portioned high-protein meals in the fridge before your first dose. Patients who do this consistently report the smoothest first month.

Pre-dose checklist · Updated 2026

GLP-1 Starter Kit: What to Have Before Your First Dose

The first 4–6 weeks on a GLP-1 are the bumpiest. Nausea, fatigue, and constipation peak during dose escalation, and most people aren't ready. This is the exact checklist of what to have in your house before your first injection — broken down by category, with our specific brand picks.

Key takeaways

Stock the kitchen with high-protein, easy-to-eat foods before your first dose — chewing-heavy meals are unpleasant during week 1.
Buy your fiber and magnesium up front, not after you're already constipated.
Have a sharps container, alcohol wipes, and a dedicated fridge spot for your pen.
Set up tracking on day one — weight, protein, steps. The patients with the best outcomes track from injection #1.

The 6-category starter checklist

#1
1. Kitchen: protein-first, low-effort meals
Most importantStock 2 weeks before first dose
Bone broth, Greek yogurt, cottage cheese, pre-cooked chicken, protein shakes, and 1–2 weeks of prepared meals. Cooking is the first thing to fall off when nausea hits — solve it before it happens.
Read full review
#2
2. Anti-constipation: fiber + magnesium
Don't skipHave before week 1
Psyllium husk (Metamucil or generic), magnesium citrate or glycinate (200–400mg), and either chia seeds or ground flax. ~25% of patients get constipation — having this on hand turns a 2-week problem into a 2-day problem.
Read full review
#3
3. Anti-nausea: ginger + B6 + electrolytes
Have for dose-escalation weeks
Ginger chews or tea, vitamin B6 (25mg), unflavored electrolyte powder (LMNT or similar), and a few cans of plain seltzer. The combination handles most early nausea without needing prescription Zofran.
Read full review
#4
4. Injection supplies
Order with your pen
A small sharps container (CVS or Amazon, ~$8), alcohol prep pads, and a labeled spot in your fridge door. If you got compounded medication, you may also need extra syringes — confirm with the pharmacy.
Read full review
#5
5. Tracking: scale + app
Set up day 1
A digital bathroom scale (any brand) and either a free macro tracker (MacroFactor, Cronometer, or MyFitnessPal) or a workout app that tracks both. Weigh once weekly, log protein daily.
Read full review
#6
6. Movement: training plan ready to go
Start week 2
Pick a strength training app before you start the medication. Most patients have lower-than-usual energy in week 1 — but if you've already committed to a plan, you'll re-engage in week 2 when energy returns.
Read full review

The 7 days before your first dose

Use this week to set yourself up. Empty the pantry of trigger foods (sweet snacks especially — they taste awful on a GLP-1 for most patients), pre-cook 5–7 high-protein meals or order your first prepared-meal delivery, and pick up the supplement stack above.

Day −7: Order meal delivery to arrive day before first dose.
Day −5: Pick up psyllium, magnesium, ginger, B6, electrolytes.
Day −3: Get sharps container and alcohol wipes.
Day −2: Install tracker app, take baseline weight and waist measurement.
Day −1: Clear a labeled spot in fridge for your pen. Eat a normal dinner.
Day 0 (injection day): Inject in the morning. Eat small meals. Walk after dinner.

What you do NOT need (yet)

Save your money. Continuous glucose monitors, expensive 'GLP-1 protein powders,' branded electrolyte subscriptions, and connected scales are all optional. Stick to the basics for the first month and only add tools that solve specific problems you actually have.

When things go wrong

Severe vomiting, inability to keep fluids down for 24+ hours, severe abdominal pain (especially radiating to the back), signs of gallbladder pain, or no bowel movement for 4+ days are all reasons to call your prescriber the same day. Don't wait for your next scheduled check-in.

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