Foundayo constipation relief: the step-by-step fix
Nobody puts it on the posters, but constipation is one of the most reported effects of every GLP-1 medicine, Foundayo included. The good news: it responds to a boringly reliable sequence, and you don't have to just put up with it.
Last verified: 12 August 2026
Why it happens
Three forces combine. Foundayo slows how quickly food moves through your digestive system, which is part of how it keeps you full. You're eating less overall, so there's simply less bulk moving through, usually with less fibre than before. And because the medicine quietens thirst, most people drift into mild dehydration, which firms everything up further. Understanding that trio is the treatment plan: add back the fluid, the fibre and the movement the medicine has quietly removed.
Step 1: fluids, properly
This is the highest-value fix and the most skipped. Fibre without fluid makes constipation worse, not better, so start here: 6 to 8 glasses a day minimum, drunk to a schedule rather than to thirst, warm drinks included, which many people find get the gut moving in the morning. The full system is in our hydration guide.
Step 2: fibre, gradually
Aim towards the UK guideline of about 30g a day, but climb slowly over a couple of weeks: a sudden fibre jump on a slowed stomach means bloating and wind. Easy adds that don't demand a big appetite: oats or a high-fibre cereal, a daily portion of beans or lentils, fruit with skins on, a spoonful of ground linseed on yoghurt, vegetables at both main meals. Kiwifruit and prunes have genuine evidence behind them and earn their reputation.
Step 3: move, daily
The gut likes motion. A brisk 20 to 30 minute walk each day measurably helps things along, and it's the same walking that supports your weight loss anyway. On days nausea has you flattened, even gentle movement beats none.
Step 4: routine and posture
Unglamorous but effective: give yourself unhurried time after breakfast, when the gut's natural wake-up reflex is strongest, don't ignore the urge when it comes, and raise your feet on a small step so your knees sit above your hips, which straightens the exit route. Ten seconds of physiology that outperforms a lot of supplements.
Step 5: the pharmacy shelf
If a week of steps 1 to 4 hasn't shifted things, speak to a pharmacist rather than soldiering on. Commonly recommended options include bulk-forming laxatives (needing plenty of fluid), osmotic laxatives such as macrogol, which draw water into the stool and are often a first choice, and short-term stimulant laxatives if things remain stuck. A pharmacist can match the right one to your situation and other medicines; that's exactly what they're for, and no, they won't think it's an odd question. They hear it about GLP-1 medicines all day long.
When it's more than constipation
Get medical advice promptly rather than reaching for more laxatives if you have severe or persistent stomach pain, vomiting alongside the constipation, blood in your stool, a swollen tender abdomen, or no bowel movement at all for many days despite the steps above. Persistent changes in bowel habit always deserve a GP conversation in their own right. And as ever, suspected side effects of a newly approved medicine can be reported via the Yellow Card scheme.