Last updated on 17 December 2025 by Brisbane Livewell Clinic Editorial Team
One in five people over 30 years of age have suffered Constipation at some point. So what are the causes of constipation? While people easily talk about their sore throat, most are embarrassed to discuss their digestive issues. Constipation is often accompanied by stomach pain. It can not only ruin your day but also have debilitating effects on your health. Getting over-the-counter medication may not solve the issue. In fact, these medications may seldom work to alleviate your condition and often contain toxins. While low fibre diet and less water intake are common reasons, there are other causes you may not be aware of.
The first step to treating constipation is to determine its cause.
Painkillers
Narcotics type painkillers can cause constipation. But how does a painkiller affect your digestive system? Most of the receptors for narcotics reside in your digestive tract, hence the affect. In fact, people on these pain killers have often prescribed a gentle laxative too. People with chronic pain disorders very often take pain killers and are at a higher risk of constipation.
Chocolate
Yes, we all love chocolate, but anything out of proportion can be unhealthy. So is the case with chocolate. However, these effects are not universal. If you think chocolate has that effect on your system, cut back on it. Or, go with a bar which has low cocoa content.
Dairy products
Cheese and other low-fibre food, such as eggs and meat, can slow down digestion. What should you do instead? First, cut down on these food items. Secondly, increase your fibre intake. An easy way to do this is to add vegetables or other high-fibre food anytime you have eggs, cheese or meat. Avoid fast food too – processed and fast food are usually low in fibre.
Antidepressants
It’s not clear why most antidepressants have unruly effects on your digestive system. Selective serotonin reuptake inhibitor or SSRI-based medicines, including Prozac, can cause constipation. However, the problem is also associated with tricyclic antidepressants such as Elavil. If you’re taking antidepressants, again, include more high fibre foods in your diet.
Diabetes
People with the advanced diabetic condition are well aware of their disorder. However, if you suspect Diabetes, you should consider getting a blood sugar test done. Diabetes may cause nerve damage which can affect your system.
