You might be surprised to hear that your dietitian wants to know about your bowel movements, but regular bowel movements that are easy to pass are a sign that many bodily processes are working well. Let's take a closer look at how those processes work.
Your digestive system is made up of muscles that mechanically break down food and move it from one digestive organ to the next. Your digestive organs also produce enzymes that chemically break down food on a molecular level. Endocrine cells release hormones that stimulate the production and release of these enzymes. These hormones also communicate with your nervous system, which sends signals between your digestive organs and your brain to help regulate digestion, hunger and fullness. Lastly, your circulatory system delivers oxygen-rich blood to your digestive muscles so they can contract properly.
To maintain normal bowel habits, your body relies on strong digestive muscles, adequate enzyme production, a properly functioning endocrine system, a well-regulated nervous system and healthy blood flow to the digestive tract.
Resolving stubborn constipation
Traditionally, we've been told that constipation is caused by not getting enough exercise, drinking enough water or eating enough fiber. While those factors certainly matter, what if addressing them doesn't help — or even seems to make constipation worse? What if you're already active, well hydrated and eating plenty of fiber?
Constipation can occur even when you're doing "everything right."
- Weak digestive muscles can slow the movement of food through the gastrointestinal (GI) tract.
- Inadequate enzyme activity can leave food poorly digested before it moves to the next stage of digestion, causing pain, bloating or gas.
- Insufficient hormone production can disrupt the digestive process.
- A dysregulated nervous system may not properly signal the digestive muscles to contract, leading to fullness, bloating and sluggish digestion.
If this sounds familiar, here are a few strategies you can try to get things moving.
Chew your food. Chewing physically breaks down food, triggers the release of salivary amylase to begin chemical digestion and signals your stomach to begin contracting.
Relax. When your body is constantly in "fight-or-flight" mode, your GI muscles can slow down and tense up, impairing digestion and intestinal motility. Deep breathing, humming or singing may help shift your body into a more restful state that supports digestion.
Eat on a regular schedule. Your GI tract thrives on consistency. Eating at regular times helps train your digestive muscles and nervous system to expect food at the same times daily, which may encourage more reliable hunger and fullness cues.
Don't wait too long between meals. Eating smaller, more frequent meals may help support healthy digestive motility.
Evaluate your fiber intake. Fiber is important for preventing constipation, but finding the right balance matters. You may need to experiment if your diet is already high in fiber. In some cases, incorporating simpler foods or choosing cooked vegetables instead of raw vegetables may be easier on your digestive system.
Reassess your exercise routine. Gentle movement generally supports healthy digestion. However, too much intense exercise may temporarily divert blood flow away from the GI tract, causing bloating or feelings of fullness. If you regularly engage in vigorous physical activity, consider whether your symptoms seem to coincide with your workouts.
Digestive health is highly individual, and there is no one-size-fits-all solution. If constipation persists, consider meeting with a registered dietitian. Registered dietitians are trained to assess your nutrition needs and help identify dietary approaches that support healthy digestion.
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