Why You Feel Sleepy After Iftar and How to Stay Alert in Ramadan

That heavy, eyelids-drooping feeling after iftar usually comes from three things together: a big meal eaten fast, a quick rise and dip in blood sugar, and a body that’s short on water and sleep. The fix is to eat iftar in two stages, walk for ten minutes, and drink water steadily until sehri.

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Why do you feel sleepy after iftar? Almost everyone who fasts knows the moment. You eat, you sit back, and twenty minutes later Isha and taraweeh feel like a mountain. It isn’t laziness. Several ordinary body processes are all pulling the same way at once, and once you understand them, and you can push back without giving up anything you love on the table.

Why a big iftar makes you so drowsy

Your body sends blood and energy to digestion

A large meal gives your gut a lot of work, so the nervous system shifts into what’s often called “rest and digest” mode, slowing your heart a touch, relaxing your muscles and making the sofa look very inviting, and the bigger and heavier the meal, the stronger that pull becomes. Big meal, big pull. That’s the classic food coma, and it happens after big wedding lunches too.

The sugar rise and dip

Dates, sharbat, jalebi and fried starters on an empty stomach can make blood sugar climb quickly. The body answers with insulin, and in some people the level then drops back fast, a drop that often feels like tiredness, fog and wanting another sweet thing. Picture a swing. Push it high, it swings back hard.

Dehydration

After 14 or 15 hours without water, especially in a Pakistani or Indian summer when the afternoon heat sits above 40 °C, many people are mildly dehydrated, and even mild dehydration can make you feel tired, heavy-headed and slow in a way that no amount of food will fix. Water will.

Short, broken sleep

Waking for sehri and sleeping late after taraweeh chops the night into two or three short pieces, and because most people still go to work, school or the kitchen at the usual hour, by evening the sleep debt is real, and a full stomach simply brings it to the surface. We cover that side in our Ramadan sleep schedule guide.

How to stay alert after iftar: the two-stage method

1. At the siren: drink 1 glass (about 250 ml) of water and eat 1 to 3 dates.
2. Add something light: a small bowl of soup, a few pieces of fruit or a spoon of chana chaat.
3. Pause for 10 to 20 minutes: pray Maghrib, chat, clear the table. This gives your body time to register food.
4. Stage two: a moderate plate. Half vegetables or salad, a quarter protein (chicken, fish, daal, chana, eggs), a quarter roti or rice.
5. Stop before full: leave the table when you’re comfortable, not stuffed.
6. Move: walk for 10 to 15 minutes, indoors or outside, at an easy pace.
7. Keep sipping: a glass of water every hour or so until sleep, then more at sehri.

Splitting the meal this way means your body never gets hit with one enormous load all at once, and it also takes the edge off acidity, which is its own reason for heavy evenings. See Ramadan constipation, acidity and bloating for the order of foods that sits best.

What to eat and drink so you don’t crash

Foods that keep you steady: protein (eggs, chicken, fish, daal, chana, dahi), vegetables, whole grains like chapati from whole atta, and fruit rather than juice. They digest more slowly, which means less of a spike and less of a dip.

Foods that make the crash worse: sugary sharbat by the jug, jalebi and other syrupy sweets, large amounts of white rice or fried snacks, and cola. You don’t have to ban them. Keep them small. Eat them after protein, not before.

Chai and coffee can help you stay awake for taraweeh, but caffeine late in the evening can cut into the little sleep you get before sehri, so if you drink it, have one cup soon after iftar, not at midnight. The general adult ceiling is about 400 mg of caffeine a day, and 200 mg in pregnancy.

Myth: feeling sleepy after iftar means you have low blood sugar

Not usually. Most post-iftar sleepiness in healthy people is simply the ordinary food coma stacked on top of a short night and a long, thirsty afternoon, and true low blood sugar (hypoglycaemia) is different and comes with shakiness, sweating, a racing heart, sudden hunger, confusion or blurred vision. It’s most likely in people using insulin or certain diabetes pills.

Did you know? The heavy feeling after a meal is common enough that sleep researchers have a name for it, postprandial somnolence, and it tends to be stronger after larger meals.

For more on sehri, iftar and fasting safely, browse our Ramzan Health guides, and if tiredness follows you outside Ramadan too, read always sleepy? 8 real causes.

Questions about sleepiness after iftar