Though commonly thought to be a vegetable, cucumber is actually a fruit.
It’s high in beneficial nutrients, as well as certain plant compounds and antioxidants that may help treat and even prevent some conditions.
Also, cucumbers are low in calories and contain a good amount of water and soluble fiber, making them ideal for promoting hydration and aiding in weight loss.
1. It Promotes Hydration
Water is crucial to your body’s function, playing numerous important roles.
It is involved in processes like temperature regulation and the transportation of waste products and nutrients .
In fact, proper hydration can affect everything from physical performance to metabolism.
While you meet the majority of your fluid needs by drinking water or other liquids, some people may get as much as 40% of their total water intake from food.
Fruits and vegetables, in particular, can be a good source of water in your diet.
In one study, hydration status was assessed and diet records were collected for 442 children. They found that increased fruit and vegetable intake was associated with improvements in hydration status.
Because cucumbers are composed of about 96% water, they are especially effective at promoting hydration and can help you meet your daily fluid needs.
2. It May Aid in Weight Loss
Cucumbers could potentially help you lose weight in a few different ways.
First of all, they are low in calories.
Each one-cup (104-gram) serving contains just 16 calories, while an entire 11-ounce (300-gram) cucumber contains only 45 calories.
This means that you can eat plenty of cucumbers without packing on the extra calories that lead to weight gain.
Cucumbers can add freshness and flavor to salads, sandwiches and side dishes and may also be used as a replacement for higher calorie alternatives.
Furthermore, the high water content of cucumbers could aid in weight loss as well.
One analysis looked at 13 studies including 3,628 people and found that eating foods with high water and low calorie contents was associated with a significant decrease in body weight.
3. It Contains Antioxidants
Antioxidants are molecules that block oxidation, a chemical reaction that forms highly reactive atoms with unpaired electrons known as free radicals.
The accumulation of these harmful free radicals can lead to several types of chronic illness.
In fact, oxidative stress caused by free radicals has been associated with cancer and heart, lung and autoimmune disease.
Fruits and vegetables, including cucumbers, are especially rich in beneficial antioxidants that may reduce the risk of these conditions.
At the end of the 30-day study, cucumber powder caused a significant increase in several markers of antioxidant activity and improved antioxidant status.
However, it’s important to note that the cucumber powder used in this study likely contained a greater dose of antioxidants than you would consume in a typical serving of cucumber.
Another test-tube study investigated the antioxidant properties of cucumbers and found that they contain flavonoids and tannins, which are two groups of compounds that are especially effective at blocking harmful free radicals.
4. It May Lower Blood Sugar
Several animal and test-tube studies have found that cucumbers may help reduce blood sugar levels and prevent some complications of diabetes.
One animal study examined the effects of various plants on blood sugar. Cucumbers were shown to effectively reduce and control blood sugar levels.
Another animal study induced diabetes in mice and then supplemented them with cucumber peel extract. Cucumber peel reversed most of the diabetes-associated changes and caused a decrease in blood sugar.
In addition, one test-tube study found that cucumbers may be effective at reducing oxidative stress and preventing diabetes-related complications.
However, the current evidence is limited to test-tube and animal studies. Further research is needed to determine how cucumbers may affect blood sugar in humans.
5. It Could Promote Regularity
Eating cucumbers may help support regular bowel movements.
Dehydration is a major risk factor for constipation, as it can alter your water balance and make the passage of stool difficult.
Cucumbers are high in water and promote hydration. Staying hydrated can improve stool consistency, prevent constipation and help maintain regularity.
Moreover, cucumbers contain fiber, which helps regulate bowel movements.
In particular, pectin, the type of soluble fiber found in cucumbers, can help increase bowel movement frequency.
One study had 80 participants supplement with pectin. It found that pectin sped up the movement of the intestinal muscles, all while feeding the beneficial bacteria in the gut that improve digestive health.
6. It’s High in Nutrients
Cucumbers are low in calories but high in many important vitamins and minerals.
One 11-ounce (300-gram) unpeeled, raw cucumber contains so many nutrients including:
Calories: 45, Total fat: 0 grams, Vitamin C: 14% of the RDI, Manganese: 12% of the RDI
Additionally, cucumbers have a high water content. In fact, cucumbers are made up of about 96% water.
To maximize their nutrient content, cucumbers should be eaten unpeeled. Peeling them reduces the amount of fiber, as well as certain vitamins and minerals.