Drinking water alone does not always suffice to fight the intense heat. A portion of our daily intake (which can rise to as much as 20% according to some nutritionists) comes directly from what we eat. So here are 10 foods to prioritize this summer to keep the body cool and well hydrated, without having to drink liters of water!
Why nutrition plays a key role in fighting the heat
When the mercury rises, the body sweats more and loses not only water but also essential minerals such as sodium, potassium, or magnesium. Drinking plain water in large quantities is therefore not always enough. Without these electrolytes, the water absorbed is eliminated almost as quickly as it is ingested. By contrast, certain foods combine a high water content with a natural mineral supply, which helps the body retain fluids better and reduces fatigue caused by the heat.
1. The cucumber, the reliable staple not to be neglected
Composed of more than 95% water, the cucumber remains one of the most hydrating vegetables in the garden! Its richness in potassium makes it a major ally to compensate for mineral losses related to sweating. Eaten cold, in thin slices in a salad or blended into a soup, it instantly cools without burdening digestion. For those with a more delicate digestive system, it is advised to remove the seeds to facilitate transit.
2. Strawberries, a dessert more hydrating than it seems
Often shunned in the intense heat in favor of juicier fruits, strawberries nevertheless boast a water content close to 91%! They also provide vitamin C and antioxidants, very useful for combating fatigue caused by heat waves. Enjoy them as they are, chilled, or blended into a homemade granita for an express and very tasty cooling break.
3. The celery stalk, the little-known thirst-quencher
Too often forgotten in your kitchens, except in soups, celery stalks are nevertheless composed of more than 95% water. They also contain natural compounds that would promote a mild diuretic effect and facilitate the elimination of toxins. Raw, cut into sticks and dipped in a fresh cheese sauce, it becomes a thirst-quenching and crunching snack par excellence. We bet it will become a star on your tables for appetizers!
4. Cottage cheese or skyr, mineral allies
Cottage cheese has a hydration rate of about 80% while being rich in calcium, sodium and proteins. These minerals help cells to better “bind” water, a mechanism particularly important during heat peaks. It can be transformed into a refreshing smoothie-like drink, blended with a fruit of your choice and a few ice cubes. Delicious and healthy!
5. Lettuce, the champion of summer salads
With nearly 96% water, lettuce even surpasses watermelon in terms of hydration! Low in calories, it also provides potassium and fiber that aid digestion, often slowed by hot weather. It therefore forms an ideal base for light and fresh composed salads this summer.
6. Grapefruit, the citrus that refreshes and wakes you up
With about 90% water and a good dose of vitamin C, grapefruit has the advantage of being not very sweet, which makes it a powerhouse ally even when appetite dips slightly due to the heat. Its natural bitterness also stimulates digestion to feel less bloated. Cut in half at breakfast or segmented in a fruit salad, grapefruit is the kick you needed!
7. The bell pepper, the crunchy underappreciated vegetable
Not usually associated with hydration, bell pepper nevertheless contains about 92% water. In addition, it ranks among the vegetables richest in vitamin C, even surpassing the orange! Raw, cut into sticks to dip in fresh hummus for example, or grilled and served cold in a marinade, it brings freshness and crunch to your summer plates.
8. Radish, the little detox ally of summer
Made up of more than 95% water, radish is rich in sulfur compounds that naturally support liver function. Its sharp flavor makes it an excellent appetite stimulant on days when the heat reduces hunger. In a bunch, crunchy with a bit of salt and butter or sliced thin in a salad, it adds pep to your meals without weighing down your stomach.
9. Zucchini, the queen of summer vegetables
Zucchini, with 94% water, lends itself to all cold preparations this summer: carpaccio, tabbouleh, chilled velouté, homemade tzatziki… It is also a good source of potassium, a mineral key to prevent muscle cramps favored by dehydration. Zucchini can be eaten both raw and cooked; it’s up to you to prepare it in endless ways.
10. Plain yogurt, the simple and effective reflex
Like cottage cheese and skyr, plain yogurt combines a high water content (about 85%) with a meaningful intake of calcium and probiotics, useful for a microbiota sometimes disrupted by the intense heat. Plain, with a few berries or transformed into a delicious sauce with lemon juice to accompany raw vegetables, yogurt perfectly completes this list of the most hydrating ingredients.
Mistakes to avoid during a heatwave
Relying solely on plain water without replenishing mineral salts can intensify fatigue during periods of extreme heat. Likewise, consuming dishes that are too rich, too fatty, or too salty in summer can draw more water for digestion, at the expense of the body’s overall hydration. Finally, drinking too much ice-cold water can cause a thermal shock. It is better to favor cool, or even lukewarm water rather than iced water, and to apply the same principle to the ingredients on this list.

