Lexapro weight gain — causes, timeline, and what you can do
Worried about gaining weight on Lexapro (escitalopram)? You’re not alone. Some people notice changes in appetite or weight after starting this SSRI, while others don’t. This page explains why weight can change, how much to expect, and clear, practical steps you can use to keep control without risking your mental health.
Why Lexapro can change your weight
Lexapro affects brain chemicals that control mood and appetite. For some people that means feeling hungrier or craving carbs. For others, improved mood leads to eating more social meals or reduced activity if side effects cause fatigue. Short-term effects vary: a few people lose weight at first because of nausea or lowered appetite, and weight gain more often shows up after several weeks to months.
How much weight? There’s no exact number that fits everyone. Many people see a small gain — a few pounds over months. Some see more, especially after long-term use. If weight gain is quick or large, it’s worth talking with your prescriber.
Simple steps to manage weight while staying on Lexapro
1) Track weight and habits. Weigh yourself once a week and note any food or activity changes. A short food diary for two weeks can reveal hidden snacks or bigger portions.
2) Focus on protein and fiber. Meals with lean protein (chicken, beans, fish) and fiber (vegetables, oats) help you feel full longer so you’re less likely to snack on high-calorie foods.
3) Move in a way you enjoy. Aim for 30 minutes most days — walking, cycling, or short home workouts work well. Adding two weekly strength sessions helps keep muscle and boosts metabolism.
4) Tackle late-night eating. If Lexapro makes you snack in the evening, keep healthy options handy and brush your teeth earlier to break the habit.
5) Sleep and stress matter. Poor sleep and stress can raise appetite and cravings. Try simple sleep habits: consistent bedtime, fewer screens before bed, and short relaxation exercises.
6) Avoid sudden stopping. Don’t stop or cut doses without talking to your prescriber. Stopping abruptly can cause withdrawal and mood relapse, which can make weight and eating habits worse.
7) Talk options with your doctor. If weight gain is significant, your prescriber may suggest dose changes, switching to another antidepressant, or adding behavioral support like a dietitian or therapist. Some medications (for example, bupropion) are less likely to cause weight gain, but any change should be supervised by your clinician.
If you notice fast weight gain, new metabolic issues (high blood sugar, cholesterol), or your mood drops, contact your provider. Small, steady changes in diet and activity usually help, but your health team can make a plan that fits your mental health and weight goals. You don’t have to pick one over the other — there are safe ways to manage both.
