MRI • CT • Sonography
Quick Answer
For most MRI scans you can eat normally — brain, spine, joints, head/neck, chest. Fasting for 4 to 6 hours is required for MRI Abdomen, MRI Pelvis, MRCP (biliary system) and any scan that uses gadolinium contrast. Continue regular medication unless your referring doctor advises otherwise. Imaging World will give you specific instructions when you book the appointment.
Fasting requirements by MRI type
| MRI Type | Fasting needed? |
|---|---|
| MRI Brain / Head | No — eat normally |
| MRI Spine (any region) | No — eat normally |
| MRI Knee / Shoulder / Joints | No — eat normally |
| MRI Chest | No — eat normally |
| MRI Abdomen | Yes — 4–6 hours fasting |
| MRI Pelvis | Yes — 4–6 hours fasting |
| MRCP (biliary tree) | Yes — 6 hours fasting |
| MR Enterography (small bowel) | Yes — 6 hours + oral prep |
| Any MRI with contrast | 4 hours fasting (to reduce nausea) |
Why fasting is needed for some scans
The bowel naturally contains gas and food, which can blur abdominal and pelvic images. Fasting reduces this artifact and gives the radiologist clearer views of the liver, pancreas, kidneys, uterus and ovaries. For MRCP — the scan that maps your bile and pancreatic ducts — even small amounts of food can cause the duct system to contract and become invisible on the scan. For contrast-enhanced studies, fasting reduces the risk of nausea after the gadolinium injection.
Can I drink water?
Yes. For most fasting-required MRIs, water is allowed up to 2 hours before the scan. Some MR enterography protocols require you to drink a specific volume of oral prep (1–1.5 litres of mannitol-water solution) starting 60 minutes before the scan. Imaging World will tell you exactly what to drink and when at the time of booking.
Should I take my regular medication?
In most cases yes — continue your regular medication unless your referring doctor has specifically advised pausing it. Diabetics on insulin or metformin should mention this when booking because fasting plans need adjustment to avoid hypoglycaemia. If you take blood thinners, MRI itself is fine but discuss with your doctor if you're also having a guided procedure.
What if I accidentally ate?
Call the centre before arriving. Depending on what and when you ate, the radiologist may proceed (with possibly suboptimal images) or reschedule the scan. Don't try to hide it — accurate information helps the team produce reliable images on the first attempt.
Book your MRI & get specific prep instructions
Our team confirms what you can and can't eat before the scan.
Call +91 63535 06575