"Cucumber is a widely cultivated plant in the gourd family, Cucurbitaceae. It is a creeping vine that bears cylindrical fruits that are used as culinary vegetables. There are three main varieties of cucumber: slicing, pickling, and burpless. Within these varieties, several different cultivars have emerged. The cucumber is originally from Southern Asia, but now grows on most continents."Mercola:
1. Protect Your Brain
Cucumbers contain an anti-inflammatory flavonol called fisetin that appears to play an important role in brain health. In addition to improving your memory and protecting your nerve cells from age-related decline,1 fisetin has been found to prevent progressive memory and learning impairments in mice with Alzheimer's disease.22. Reduce Your Risk of Cancer
Cucumbers contain polyphenols called lignans (pinoresinol, lariciresinol, and secoisolariciresinol), which may help to lower your risk of breast, uterine, ovarian, and prostate cancers.3 They also contain phytonutrients called cucurbitacins, which also have anti-cancer properties. According to the George Mateljan Foundation:43. Fight Inflammation
"Scientists have already determined that several different signaling pathways (for example, the JAK-STAT and MAPK pathways) required for cancer cell development and survival can be blocked by activity of cucurbitacins."
Cucumbers may help to "cool" the inflammatory response in your body, and animal studies suggest that cucumber extract helps reduce unwanted inflammation, in part by inhibiting the activity of pro-inflammatory enzymes (including cyclo-oxygenase 2, or COX-2).54. Antioxidant Properties
Cucumbers contain numerous antioxidants, including the well-known vitamin C and beta-carotene. They also contain antioxidant flavonoids, such as quercetin, apigenin, luteolin, and kaempferol,6 which provide additional benefits.5. Freshen Your Breath
For instance, quercetin is an antioxidant that many believe prevents histamine release—making quercetin-rich foods "natural antihistamines." Kaempferol, meanwhile, may help fight cancer and lower your risk of chronic diseases including heart disease.
Placing a cucumber slice on the roof of your mouth may help to rid your mouth of odor-causing bacteria. According to the principles of Ayurveda, eating cucumbers may also help to release excess heat in your stomach, which is said to be a primary cause of bad breath.76. Manage Stress
Cucumbers contain multiple B vitamins, including vitamin B1, vitamin B5, and vitamin B7 (biotin). B vitamins are known to help ease feelings of anxiety and buffer some of the damaging effects of stress.7. Support Your Digestive Health
Cucumbers are rich in two of the most basic elements needed for healthy digestion: water and fiber. If you struggle with acid reflux, you should know that drinking water can help suppress acute symptoms of acid reflux by temporarily raising stomach pH; it's possible that water-rich cucumbers may have a similar effect.8. Maintain a Healthy Weight
Cucumber skins contain insoluble fiber, which helps add bulk to your stool. This helps food to move through your digestive tract more quickly for healthy elimination.
Cucumbers are very low in calories, yet they make a filling snack (one cup of sliced cucumber contains just 16 calories).8 The soluble fiber in cucumbers dissolves into a gel-like texture in your gut, helping to slow down your digestion. This helps you to feel full longer and is one reason why fiber-rich foods may help with weight control.9. Support Heart Health
Cucumbers contain potassium, which is associated with lower blood pressure levels. A proper balance of potassium both inside and outside your cells is crucial for your body to function properly.10. Relieve Pain
As an electrolyte, potassium is a positive charged ion that must maintain a certain concentration (about 30 times higher inside than outside your cells) in order to carry out its functions, which includes interacting with sodium to help control nerve impulse transmission, muscle contraction, and heart function.
Flavonoids and tannins in cucumbers have been found to have both free-radical scavenging and pain-relieving effects, while it has a number of traditional folk uses as well. As written in the Journal of Young Pharmacists:10 "Traditionally, this plant is used for headaches; the seeds are cooling and diuretic, the fruit juice of this plant is used as a nutritive and as a demulcent in anti-acne lotions."
As the fourth-most widely cultivated "vegetable" in the world (cucumbers are technically a fruit), cucumbers are widely available, but seek to get them from a local farmer's market if you can. Even better, cucumbers are very easy to grow, even if you only have access to a patio. They thrive in containers (provide they have somewhere to climb on) and produce ample produce from a small number of plants, so you could try your hand at growing them yourself.