What to expect in your first month on a GLP-1
A realistic week-by-week look at appetite changes, side effects, and the dose ramp.
GLP-1 medications work by mimicking a hormone your gut already makes — the one that tells your brain you're full. The first month is mostly about your body adjusting to that signal. Here's what most people experience.
Week 1: appetite quiets down
You won't feel "full" exactly. You'll just notice food doesn't sound as interesting. Cravings between meals soften. Many patients stop reaching for snacks without consciously deciding to.
Weeks 2–3: the side effect window
Mild nausea, occasional reflux, and slower digestion are the most common adjustments. Eating smaller, lower-fat meals and drinking water steadily through the day helps a lot. Most side effects fade within two weeks.
If anything feels severe, message your care team. Your provider may recommend staying at your starter dose another week, or adjusting the ramp schedule.
Week 4: the first dose increase
Most protocols increase the dose every 4 weeks. The bump may bring back mild side effects briefly. That's normal and usually shorter-lived than the first round.
What to weigh
A weekly weight log helps your provider tune your dose without guessing. You'll see scale-day fluctuations of a few pounds — that's water, not fat. The trend line over four weeks is what matters.