Dehydration is the most common challenge for athletes during Ramadan, especially in the UAE where temperatures regularly exceed 35 degrees. Even mild dehydration reduces strength output by 10-15% and significantly impairs cognitive function.
How Much to Drink
Aim for 3-4 litres of water between Iftar and Suhoor. Spread this intake gradually rather than drinking large amounts at once. Avoid caffeinated drinks in the first hour after Iftar as they increase fluid loss.
Drinking a litre in one go does not hydrate you. It largely passes through, because the body can only absorb so much at once. Roughly 200 to 300 millilitres every twenty to thirty minutes across the evening is absorbed far more effectively.
Electrolytes Matter
After a full day of fasting, electrolyte balance is disrupted. Include sodium, potassium and magnesium in your Iftar meal.
This is the part most people miss. Drinking large volumes of plain water after heavy sweating can actually dilute your remaining sodium, which produces the headache and flat, heavy feeling that many people blame on the fast itself.
Salt your food properly at Iftar and Suhoor. Include potassium sources such as dates, bananas and potatoes, and magnesium from nuts and leafy greens.
How to Tell If You Are Actually Dehydrated
Thirst is a late signal. Two better ones are available.
Urine colour. Pale straw is well hydrated. Dark yellow means you are behind. Check at Suhoor, because that reading tells you whether you entered the fast properly hydrated.
Morning weight. Weigh yourself at Suhoor across several days. A drop of more than one to two percent from your normal baseline is fluid, not fat, and it will cost you strength that day.
The Suhoor Fluid Load
What you drink at Suhoor determines most of how the fasting day feels. Aim for 500 to 750 millilitres in the final half hour, alongside salted food so the fluid is actually retained rather than passed.
Water rich foods help more than people expect. Yoghurt, soup, cucumber and watermelon all contribute meaningfully and sit better than another glass of water.
Managing the UAE Heat Specifically
Fasting in 40 degree heat is a different proposition from fasting in a temperate climate. Stay indoors during the hottest hours where you can, keep air conditioning moderate rather than extreme, and avoid outdoor training entirely during daylight.
If your work is outdoors, this stops being a performance question and becomes a safety one. Dizziness, cramping, confusion or stopping sweating altogether are signs to break the fast and seek help.
What to Avoid
Very salty fried food at Iftar increases thirst through the following day. Large amounts of caffeine in the first hour increase fluid loss. Sugary drinks in volume tend to cause an energy crash a few hours later, usually right when you were planning to train.
Cibo Diet Ramadan Support
Call +971 4 396 6515 for our Ramadan nutrition guidance.
You may also want to read our Ramadan nutrition guide for athletes, which covers Suhoor and Iftar meal structure and when to train.
