Properties and Benefits of Curly Endive: The curly endive, also known as frisée (Cichorium endivia crispum) is a curly, crisp, green leafy vegetable related to chicory. In addition to making a great salad green, the curly endive is a rich source of important nutrients, namely vitamins A, K, B5 and B9, copper, iron, manganese, potassium and zinc.
Despite being quite bitter, regular consumption of the vegetable contributes to lowering LDL cholesterol levels as well as blood sugar levels. Moreover, it is low in calories, sugar and fat, offers great antioxidant protection and increases calcium absorption in bones, helping in the prevention of osteoporosis.
What is curly endive and what does it look like? Curly endive is a green leafy vegetable with crisp, curly leaves of a bright green color and whitish stalk bottoms. It is related to chicory and called by the same name in some parts of the English-speaking world, hence the confusion as to what it is. However, endives and curly endives are related to, but different from Belgian endives, radicchio or puntarelle, all three being chicory varieties.
What does curly endive taste like? Just as in the case of the common endive, curly endive is quite bitter, hence its lack of popularity among the general population. However, it makes a wonderful salad vegetable and a healthy addition to any diet. So how can we make it more palatable? How to reduce curly endive leaves bitterness:
1) Blanch (or whiten) curly endive leaves by throwing them in a pot of boiling water for a few seconds. Quickly take them out and place them under cold running water or put them in a bowl of iced water. This should help remove some of the bitterness, but may also contribute the leaves losing a part of their nutritional value (it is a well-known fact that heat destroys vitamins).
2) Add some lemon juice to reduce bitterness or pair them with a lemon juice, vinegar or slightly sugared salad dressing. You can also pair them with hard boiled eggs or sweeter vegetables such as potatoes.
3) Don’t chew on them too much. Overthinking can do more harm than good and so can overchewing. I’m not saying to swallow them in chunks, just don’t give the leaves time to fill your mouth with bitterness.
But why should we bother so much with curly endives? Are they really worth the time spent making them tasty? Yes, they are. Curly endives are genuinely nutritious, supplying our body with great amounts of essential nutrients which keep us in good health. Regular consumption can even help improve more serious medical conditions such as diabetes or high blood cholesterol. Here is a list of 10 amazing nutrition facts and health benefits of curly endives:
1) Promote weight loss. Curly endives contain only 17 kcal/100 g, 0.2% fat and 0.25% sugar, making them ideal if you wish to lose some weight. Pair them with a skinny salad dressing and you have yourselves a great side dish for a thin waistline.
2) Reduce blood cholesterol. Curly endives are a good source of dietary fiber (3.1 g) called inulin. According to research, inulin is quite efficient at reducing LDL (bad) cholesterol and triglyceride levels, contributing to artery and overal cardiovascular health.
3) Prevent arterial calcification. With 192% of the RDA of vitamin K, curly endives help prevent arterial calcification by ensuring the calcium we take in deposits correctly in bones (and teeth), not on artery walls or heart valves. Vitamin K was found to regulate the way our body uses calcium which is why it is important to include at least one vitamin K-rich food in your regular diet, especially if you are prescribed Coumadin or Warfarin anticoagulants which disturb vitamin K metabolism.
Vitamin K deficiency may, in time, lead to atherosclerosis.
4) Strong, healthy bones. The high amounts of vitamin K in curly endives help regulate calcium metabolism by increasing calcium absorption in bones. This helps preserve bone integrity and bone health and significantly reduces osteoporosis risks.
5) Help stabilize blood glucose levels. Thanks to its inulin content, curly endive appears to help stabilize blood glucose (sugar) levels, being recommended for both diabetics as well as for people suffering from intermittent hyperglycemia (high blood sugar levels), a prediabetes condition.
6) Support healthy gut flora. The inulin in curly endives is a great natural prebiotic, meaning it promotes healthy gut flora such as bifidobacteria. Good gut flora is essential for normal digestion and an overall good intestinal transit. The more fiber you eat, the faster your intestinal transit time is.
7) Relieve constipation and promote colon health. Thanks to its good dietary fiber content, curly endives help relieve constipation. This, in turn, reduces the time our colon is exposed to the toxins in poop, thus contributing to colon mucosa health.
8) Stimulate immunity. Curly endives are an excellent source of vitamin A: 72% of the RDA. Vitamin A ensures the health of the mucous membranes at the level of the nose, mouth, throat, lungs and digestive tract, the parts of our body directly exposed to pathogens from the outside world, preventing any possible breach that may lead to infection.
9) Help maintain good eyesight. Rich in vitamin A, curly endives are a great choice for maintaining good eyesight. A good dietary intake of vitamin A-rich foods efficiently prevents macular degeneration or loss of central vision.
10) Reduce inflammation and offer antioxidant protection. The vitamins and minerals in curly endives boast great anti-inflammatory and antioxidant effects. For instance, vitamins A, C and K are highly efficient at reducing inflammation, a known cause of chronic disease. Copper, iron and manganese along with vitamin C are excellent antioxidants, protecting against oxidative stress, a buildup of cell and DNA damage that can potentially lead to cancer.
Good to know: researchers are currently developing a cure for prostate cancer based on high doses of both vitamin C (5.000 mg) and vitamin K3 (50 mg). Preliminary results show great promise, also suggesting that vitamins C and K may offer excellent prevention for this type of cancer.
As you can see from the nutrition table above, curly endives are quite the nutritious vegetable. They are recommended for children, adults as well as expecting mothers. Being rich in folate (or vitamin B9), they help prevent spinal cord defects in newborns called neural tube defects. If you can find it in your heart to make room for them on your plate, then you are the real winners.