Managing Constipation on Semaglutide: Practical Solutions That Work

If you've recently started semaglutide and find yourself struggling with constipation, you're not alone. This common side effect affects roughly 20-30% of people taking GLP-1 medications, and while it can be uncomfortable, the good news is that it's manageable with the right approach. Let's talk about why this happens and, more importantly, what you can do about it.

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 movement—called delayed gastric emptying—is actually part of how the medication helps you feel fuller longer and eat less. But when things slow down too much throughout your entire digestive tract, constipation can result.

Your intestines need regular movement to function properly. When food and waste move more slowly, your colon absorbs more water from the stool, making it harder and more difficult to pass. Add in the fact that many people eat less overall when taking semaglutide, and you have a recipe for occasional backup.

When Constipation Typically Occurs

Most people notice constipation during the first few weeks after starting semaglutide or after a dose increase. Your body is adjusting to the medication, and your digestive system is learning to work at this new, slower pace.

The good news is that for many people, constipation improves after the first month or two as your body adapts. However, some individuals experience ongoing issues that require consistent management strategies.

Practical Strategies to Relieve Constipation

Increase Your Water Intake

This is the single most important step. Aim for at least 64-80 ounces of water daily, and more if you're active or live in a hot climate. Since your colon is absorbing extra water from your stool, you need to replace it. Keep a water bottle with you throughout the day and sip consistently rather than trying to chug large amounts at once.

Boost Your Fiber Gradually

Fiber adds bulk to stool and helps it move through your intestines more efficiently. Aim for 25-35 grams daily from sources like fruits, vegetables, whole grains, beans, and lentils. The key word here is gradually—adding too much fiber too quickly can actually make constipation worse and cause bloating.

Good high-fiber options include prunes, berries, apples with skin, broccoli, Brussels sprouts, oatmeal, and chia seeds. If you're struggling to get enough through food alone, a fiber supplement like psyllium husk can help, but always start with a small dose.

Move Your Body Daily

Physical activity stimulates intestinal contractions and helps move things along naturally. You don't need intense workouts—a 20-30 minute daily walk can make a significant difference. Yoga poses that involve twisting or gentle compression of the abdomen can be particularly helpful.

Consider a Magnesium Supplement

Magnesium citrate or magnesium oxide can help draw water into your intestines and promote bowel movements. Start with 200-400 mg before bed and adjust as needed. Many people find this gentler than over-the-counter laxatives for ongoing management.

Try Natural Stool Softeners

Docusate sodium (Colace) is a gentle, non-stimulant stool softener that can be used daily if needed. It works by allowing water and fats to penetrate the stool, making it softer and easier to pass. This is generally safe for long-term use, unlike stimulant laxatives.

Use Stimulant Laxatives Sparingly

Medications like bisacodyl (Dulcolax) or senna can provide relief when you really need it, but they shouldn't be your first-line defense. Regular use can lead to dependency, where your intestines become less able to function without them. Reserve these for occasional use when gentler methods haven't worked.

Dietary Adjustments That Help

Even though you may be eating less overall on semaglutide, what you eat matters. Prunes and prune juice are tried-and-true remedies that contain both fiber and sorbitol, a natural laxative compound. Starting your morning with warm lemon water or coffee can also stimulate bowel movements.

Foods with probiotics—like yogurt, kefir, sauerkraut, and kimchi—support healthy gut bacteria that aid digestion. Healthy fats from sources like olive oil, avocados, and nuts also help lubricate your digestive system.

Gender Differences in Constipation

Women are generally more prone to constipation than men, even without medication. Hormonal fluctuations during the menstrual cycle can slow digestion, particularly in the days before menstruation when progesterone levels peak. Women taking semaglutide may notice their constipation worsens during this time each month.

Additionally, women tend to have longer colons than men, which means more time for water absorption and potentially harder stools. Being aware of these differences can help you plan ahead with increased hydration and fiber during vulnerable times.

When to Contact Your Doctor

While constipation is usually manageable at home, certain symptoms warrant medical attention. Contact your healthcare provider if you experience severe abdominal pain, blood in your stool, constipation lasting more than a week despite home remedies, or sudden inability to pass gas along with constipation.

Your doctor may need to adjust your semaglutide dose or rule out other causes of constipation. In rare cases, severe constipation can lead to complications that require medical intervention.

From the Ozari Care Team

Start your constipation prevention strategy on day one of semaglutide—don't wait until it becomes a problem. We recommend all our patients begin with increased water intake and a high-quality magnesium supplement from the start. This proactive approach helps most people avoid constipation altogether or keeps it mild and manageable throughout their treatment journey.

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

Medically reviewed by the Ozari Clinical Care Team, licensed physicians specializing in metabolic health and GLP-1 therapy. Last reviewed: April 26, 2026.