Nausea is the side effect people ask about most. It is also one where a simple log helps a lot, because it tends to have a pattern.
What the labels say
In the prescribing information for Wegovy, Ozempic, Zepbound and Mounjaro, nausea is the most common side effect, and digestive side effects are more frequent during dose increases.
A 30-second daily log
Once a day, write down:
- Nausea: none, mild, moderate, strong
- Shot day or dose change, when it happens
- A note on meals if something stood out: a big meal, fried food, eating fast, eating late
Patterns to look for
Day of your shot week. Is it worse on day 1 and 2, around the peak of your medication level? That is a pattern many people describe.
Dose steps. Is the first week or two after an increase worse, then better?
Meals. Do big, rich or fast meals come before the bad days?
Your cycle. If you have one, check whether some weeks line up with your period. See PMS, ovulation and GLP-1 side effects.
What people commonly find helpful
These come from the general advice given with these medications:
- Smaller meals, eaten slowly
- Stopping when you feel full
- Going easy on fried, fatty or very sweet food
- Drinking fluids between meals
When to call your prescriber
- You cannot keep fluids down
- Severe stomach pain that does not go away, with or without vomiting
- Dizziness, very dark urine or feeling very weak, which can be signs of dehydration
Your notes are useful here: a few weeks of daily ratings is much clearer than “it has been bad lately”.