GLP-1s · June 24, 2026

Injectable or Oral GLP-1: The Answer Your Doctor Hasn’t Given You Yet

If the only thing standing between you and a GLP-1 prescription has been the idea of weekly injections — you’re not alone. For years, the conversation centered almost exclusively on injectables. The results were remarkable. The delivery method was a dealbreaker for a lot of people. That’s changing. And if you’re in Colorado, Monday Medical is one of the few clinics ahead of that curve — offering both injectable and oral GLP-1 options so your treatment fits your life, not the other way around.

~15% Average body weight loss with semaglutide STEP Trials

~22% Average body weight loss with tirzepatide SURMOUNT-1 Trial

~15% Oral semaglutide at weight-loss doses OASIS Trial

What GLP-1s Actually Do in Your Body

GLP-1 stands for glucagon-like peptide-1 — a hormone your gut naturally produces in response to food. It signals your brain that you’re full, slows how quickly food leaves your stomach, and helps regulate blood sugar. When you take a GLP-1 receptor agonist, you’re amplifying a signal your body already uses — just louder and longer.

The result: reduced hunger, improved metabolic function, and for most patients, meaningful weight loss that traditional diet-and-exercise approaches couldn’t deliver alone. GLP-1s don’t override willpower — they rebalance the biology underneath it.

Injectable GLP-1s: Where the Science Started

The injectable GLP-1s — semaglutide and tirzepatide — have become some of the most studied weight loss compounds in modern medicine.

STEP Trials — Semaglutide

~15%

Average body weight loss with once-weekly subcutaneous semaglutide — results previously unseen outside of surgical intervention.

SURMOUNT-1 — Tirzepatide

~22%

Average body weight loss with tirzepatide — numbers that rival bariatric surgery without any procedure.

For many patients, injectable GLP-1s remain the gold standard. Once-weekly dosing keeps blood levels consistent, the efficacy data is the deepest available, and doses can be titrated precisely over time. If you’re managing significant weight loss goals or underlying metabolic conditions, injectables may still be the right call.

Oral GLP-1s: The Game Changer

The OASIS clinical trial changed the conversation entirely. Oral semaglutide at weight-loss doses achieved approximately 15% average weight loss over 68 weeks — comparable to injectable STEP results.

This wasn’t the small, diabetes-focused dosing from before. This was weight-loss level dosing, in a once-daily pill. No needles. No cold storage. No injection-site reactions. Just a tablet taken on an empty stomach each morning.

Oral GLP-1 therapy works particularly well for people with needle aversion, those who travel frequently, or anyone who wants the lowest-barrier entry point into GLP-1 therapy. Absorption requires strict timing — 30 minutes before food with a small sip of water — but for patients who follow the protocol, results are genuinely comparable to injectable options.

Injectable vs. Oral: Side by Side

Injectable

Semaglutide / Tirzepatide

Once-weekly subcutaneous injection
Up to ~22% average weight loss
Deepest clinical evidence base
Refrigerated storage required
Precise, flexible dose titration
Consistent blood level maintenance

Best for: Maximum efficacy & metabolic conditions

Oral

Oral Semaglutide

Once-daily tablet — no injections
~15% average weight loss (OASIS)
Comparable results to injectable STEP
Room-temperature storage
Travel-friendly & discreet
Morning timing protocol required

Best for: Needle aversion, travel, accessibility

“The best GLP-1 for you isn’t the most popular one. It’s the one matched to your body, your lifestyle — and the one you’ll actually stay on long enough to see results that last.” Monday Medical — GLP-1 Program

How Do You Actually Choose?

Honest answer: you shouldn’t choose alone. There are real clinical considerations — your current weight, metabolic history, existing medications, lifestyle, and how you tolerate different delivery methods all matter. What works brilliantly for one person may not fit another.

⚖Your starting weight and overall weight loss goals
💉Needle comfort — an honest assessment, not a judgment
🔫Current medications and metabolic health history
✈Lifestyle: do you travel frequently? Work irregular hours?
📈Whether maximum efficacy or long-term adherence is the priority
↻Flexibility to transition between delivery methods as goals evolve

Monday Medical — Both Options, One Team

Most weight loss clinics in Colorado offer one GLP-1 option. Maybe two. Monday Medical offers both injectable and oral GLP-1 therapy — and the difference goes beyond delivery method. Your Monday Medical provider reviews your full health history, current medications, goals, and preferences before recommending anything. GLP-1 therapy here includes provider-supervised titration, regular check-ins, and the flexibility to transition between oral and injectable as your needs evolve.

Find Your GLP-1 Match

Book a free consultation with a Monday Medical provider. We’ll review your health history, goals, and preferences — and build a GLP-1 plan that actually fits your life.

Book Your Free Consultation →

This content is for educational purposes only and does not constitute medical advice. GLP-1 therapies require a prescription and individual provider evaluation. Results vary. Monday Medical providers will determine whether GLP-1 therapy is appropriate for your specific situation.

ORAL GLP-1 or INJECTABLE?