Side Effects

Managing Constipation on Semaglutide: What Works and What to Expect

You've started semaglutide and you're seeing results, but there's an uncomfortable side effect slowing you down—literally. Constipation on GLP-1 medications like semaglutide is incredibly common, but the good news is that it's usually manageable with the right strategies. Let's talk about why this happens and what actually works to get things moving again.

Why Semaglutide Causes Constipation

Semaglutide works by mimicking a hormone called GLP-1 that naturally slows down how quickly food moves through your digestive system. This slower digestion is actually part of how the medication works—it helps you feel fuller longer and reduces appetite. But when food moves more slowly through your intestines, more water gets absorbed from your stool, making it harder and more difficult to pass.

This isn't a sign that something is wrong. It's simply your digestive system adjusting to a new pace. For most people, constipation is most noticeable in the first few weeks after starting semaglutide or after a dose increase, and it often improves as your body adapts.

How Common Is Constipation on Semaglutide?

Clinical studies show that between 20-30% of people taking semaglutide experience constipation at some point during treatment. You're not alone in this, and it doesn't mean you need to stop your medication. Most cases are mild to moderate and respond well to simple interventions.

Women tend to report constipation slightly more frequently than men, though this may be partly because women are generally more prone to constipation regardless of medication use due to hormonal factors and differences in digestive transit time.

Effective Strategies for Managing Constipation

Increase Your Water Intake

This is the single most important step. Since semaglutide causes your body to absorb more water from your stool, you need to drink more water to compensate. Aim for at least 8-10 glasses daily, and more if you're active or live in a hot climate.

Don't wait until you're thirsty. Set reminders on your phone, keep a water bottle with you throughout the day, and front-load your hydration in the morning and afternoon.

Add More Fiber Gradually

Fiber helps add bulk and softness to stool, making it easier to pass. Focus on soluble fiber found in foods like oats, apples, berries, beans, and flaxseed. Aim for 25-30 grams of fiber daily.

The key word here is gradually. Adding too much fiber too quickly can actually make constipation worse and cause uncomfortable bloating. Increase your fiber intake slowly over a week or two, and make sure you're drinking plenty of water along with it.

Stay Physically Active

Movement stimulates your digestive system. You don't need intense exercise—even a 15-20 minute walk after meals can help encourage bowel movements. Gentle yoga, stretching, or any activity that gets your body moving can make a difference.

Consider Over-the-Counter Options

If lifestyle changes aren't enough, several over-the-counter options can help:

Avoid relying on stimulant laxatives like senna or bisacodyl for long-term use, as your body can become dependent on them. Save these for occasional use when nothing else is working.

Time Your Eating Strategically

Try to eat your meals at consistent times each day. This helps regulate your digestive system and can establish a more predictable bowel routine. Many people find that having a warm beverage and a small breakfast in the morning helps trigger a bowel movement.

Gender-Specific Considerations

Women may find that constipation on semaglutide worsens during certain phases of their menstrual cycle, particularly in the luteal phase (the two weeks before your period). Progesterone naturally slows digestion, so the combination with semaglutide can create a double effect. Be extra attentive to hydration and fiber during this time.

Men typically have faster baseline digestive transit times, which may offer some protective effect, but they're not immune to this side effect. If you're experiencing constipation, the same management strategies apply regardless of gender.

When to Contact Your Doctor

While constipation is usually manageable at home, there are times when you should reach out to your healthcare provider:

Your doctor may recommend adjusting your semaglutide dose temporarily or prescribing a different approach to managing your symptoms.

The Bottom Line

Constipation on semaglutide is common, but it doesn't have to derail your progress. Most people find that with adequate hydration, gradual increases in fiber, regular movement, and occasionally an over-the-counter remedy, they can manage this side effect effectively. Remember that your body is adjusting to the medication, and constipation often improves after the first few weeks.

Be patient with yourself, stay consistent with the strategies that help, and don't hesitate to reach out to your healthcare team if you need additional support.

From the Ozari Care Team

Start with the basics: water and walking. We find that many patients see improvement simply by increasing water intake to 80-100 ounces daily and taking a 15-minute walk after their largest meal. If you're still struggling after a week, adding 1-2 tablespoons of ground flaxseed to your morning routine can provide gentle, natural relief without the side effects of harsh laxatives.

At Ozari Health, we offer compounded Semaglutide and Tirzepatide as low as $99/month, prescribed by licensed physicians and shipped to your door. Learn more at ozarihealth.com.

Medically Reviewed — Ozari Clinical Content Team (OCCT). Health writers and wellness professionals specializing in GLP-1 therapy, metabolic health, and weight loss medicine. Content reviewed in accordance with Ozari's Editorial Standards. Last reviewed: April 25, 2026.

This content is for informational purposes only and does not constitute medical advice. Always consult a licensed healthcare provider before starting any medication.

Last reviewed: April 25, 2026