GLP-1, known as glucagon-like peptide-1, is a hormone released by your body whenever you eat something. It allows your system to absorb maximum nutrients by slowing down gastric emptying, which gives you better control over hunger. GLP-1 also increases insulin release from the pancreas and regulates satiety. For individuals struggling to lose weight, GLP-1 receptor agonists can be an effective medical option.
What Happens When You Take GLP-1 Medications?
GLP-1 medications were originally developed to treat type 2 diabetes. Over time, researchers discovered they were also highly effective at reducing hunger and managing weight. These medications are injectable (not oral) and administered once weekly under the supervision of a medical provider. Your doctor will inject the medication through a small needle into the belly, thighs, arms, or upper buttocks. The medication then works with your body's biological functions in three key ways:
Regulating appetite — you feel full sooner and stay full longer, naturally eating less
Slowing digestion — controls blood sugar levels and reduces cravings between meals
Improving insulin function — helps your body burn fat more efficiently
How to Maximize the Effects of GLP-1
GLP-1 works well for losing weight — but it won't work magic overnight. To keep progress going, pair it with smart food choices and daily movement. Start with meals that mix protein, fiber, and healthy fats to support energy and build muscle. Think whole foods instead of processed packages. Move your body every day — a walk, yoga, strength training — begin slowly if needed, but stay consistent.
Are GLP-1 Medications Safe?
For best results and safety, GLP-1 medications should be prescribed by a qualified healthcare provider who first assesses whether your body is suited to the medication. Common side effects — especially early in treatment — include:
Nausea (most common; usually improves after weeks 2–4)
Vomiting or upset stomach
Constipation or diarrhea
Headaches
Fatigue
Rare but serious side effects exist, which is why ongoing medical supervision is essential. Your provider monitors your response and adjusts dosage as needed.
GLP-1 vs. Dual Agonists (Tirzepatide)
Standard GLP-1 medications (like semaglutide) target one receptor. Newer dual agonists like tirzepatide target both GLP-1 and GIP receptors, producing stronger appetite suppression and greater average weight loss (up to ~20% vs. ~15%). Your provider will determine which approach fits your health profile and goals.
Evolve Medical Services prescribes and manages GLP-1 treatment plans at our San Diego and Riverside clinics. Contact us to find out if you're a candidate.
