Tag: nutrition

  • Persimmons to boost immunity & cardiovascular health

    Persimmons are yellowish orange coloured nutritious, edible fruits enriched with vitamins A, C, E, and K,& minerals like potassium, manganese, and copper, along with various types of antioxidants. All these nutrients of persimmon are associated with immense health benefits.

    Persimmons are available in a wide variety of species and the mostly consumed variety is Japanese persimmon. The fruits of persimmon are abundant sources of Fibers which help digestion. In addition, it has nutrients which support immunity, vision, improve heart health.

     The antioxidants of persimmon are capable of fighting inflammation and delaying premature aging.

    Apart from eating this ripe delicious fruit, persimmon has culinary uses also particularly in preparing delicious desserts.

    Botanical information about persimmon

    Persimmon is an edible fruit tree belonging to Ebenaceae family and genus diospyros. It is commonly cultivated in warm regions in various parts of the globe including China, Korea, Japan, Brazil, Turkey, and Italy& Mediterranean region.

    The fruit tree originated in China around 2000 years ago and later it spread to Japan, Korea and all over the world.

    Around 400 species of persimmon are planted globally. Out of these, Diospyros kaki, Diospyros virginiana, Diospyros oleifera, and Diospyros lotus are of great significance.

     Diospyros.kaki (Japanese persimmon) is considered as the most loved persimmon by the people worldwide. It is also the most widely cultivated species of persimmon. Typically, the tree grows to a height of 4.5 to 18 metres

    The leaves of persimmon tree are deciduous and bluish-green in color. In autumn, they turn to yellow, orange, or red. The ripe fruit of the cultivated strains range from glossy light yellow-orange to dark red-orange depending on the species and variety.

    The fruit of persimmon has an astringent taste when unripe, due to the presence of tannins in them. As the fruit matures tannin levels fall down and it becomes sweeter and more delicious.

    Persimmons may be stored at room temperature (20 °C or 68 °F), where they will continue to ripen. It is recommended that consuming only ripe  persimmon is safe in raw form.

    Nutritious value of persimmon

    Persimmon is well-known for its nutritious value. The fruit is comprising 80.3 % water, 0.58 % protein, 0.19 % total lipids, 18.6 % total carbohydrates

    Persimmon also contains some minerals such as magnesium, iron, zinc, copper, manganese, etc.in adequate amounts.

     It provides up to 1.48 g and 7.5 mg total dietary fiber, and ascorbic acid respectively. Dietary fiber is present in persimmon in the amounts of 1.20-1.76 % and soluble fiber accounts for 0.52-0.92 %.

     Persimmon  also contain calcium and potassium in traces.

     However, Sugar content (12.5 g/100 g) is higher in persimmon compared to other daily consumed fruits such as apple, peach, pear and orange etc. Among sugars sucrose, glucose & fructose) are plenty.

    Persimmons are abundant storehouse of antioxidants. They include proanthocyanidins ,flavonoid oligomers, tannins, phenolic acids and catechin etc. Carotenoids and tannins are found in good amounts.

    The major phenolic compounds of persimmon include epicatechin, ferulic acid, gallic acid, protocatechuic acid, vanillic acid, and p-coumaric acid. Persimmon is rich in carotenoids especially β-carotenes.

    The bioactive components present in persimmon especially carotenoids and tannin are helpful in neutralizing free radicals, decreasing cardiovascular risk factors (blood pressure & cholesterol), and reducing the risks of diabetes mellitus along with effectiveness against cancer insurgence.

    The phenolic compounds antioxidants and dietary fiber are the main constituents responsible for the cardioprotective effects of persimmon.

    The condensed tannins and flavonoids also contributes towards antioxidant potential of persimmon thus can be considered as effective agents to prevent various lifestyle related disorders.

    The carotenoids and catechins also have some anticancer potential.

    Health benefits of persimmon

    • Antioxidant properties

    Persimmon contains carotenoids, polyphenols, ascorbic acid &vitamin E that have antioxidant properties. Antioxidants prevent free radical damage to the body and thus prevent many grave diseases. Most of these bioactive components scavenge free radicals, bind metals, and inhibit the lipid peroxidation. Furthermore, they improve skin health also.

    • Boosts heart health

    Persimmon has great role in reducing bad cholesterol. This cholesterol lowering properties of persimmon help to prevent risk of heart attack. Apart from dietary fibers, minerals and essential trace elements present in persimmon can prevent coronary atherosclerosis and its complications. The cholesterol lowering effects of persimmon and its products are due to decreased cholesterol absorption, cholesterol & fatty acids production.

    •  Boosts immunity & reduces infections

    Persimmon is enriched with vitamin C which is a major immunity boosting nutrient. Vitamin C is  an effective antioxidant also which prevents development of various organ diseases.

    • Improves digestion

    The Fibers in persimmon helps to improve gut motility and digestion. They also help to reduce cholesterol.

    • Helps eye health &vision

    Persimmon is rich in vitamin A and beta carotenoids which help to improve vision& health of eyes.

    • Boosts skin health & glow

    Persimmon is an abundant source of vitamin A, vitamin C, vitamin E and plenty of antioxidants. These nutrients impart a radiant glow to the skin boosting collagen and skin health. Antioxidants help to minimize the free radical induced damage to the skin from various sources. Thus, it helps anti-ageing.

     Safety & caution

     Fully ripe Persimmon is an immensely nutritious fruit with good effects. However, some people may be sensitive or allergic to this fruit as with to many other foods. In such cases, if intake of persimmon cause vomiting, stomach upset etc. better avoid eating them.

    Unripe persimmons are toxic to body as they contain the soluble tannin shibuol, which, upon contact with a weak acid, polymerizes in the stomach and forms a gluey coagulum, a “foodball” or phytobezoar, that can affix with other stomach matter

    Persimmon intake is recommended only in moderate amounts for diabetics as the fruit has a little higher glucose and fructose content while it contains various other vital nutrients to prevent lifestyle diseases.

    Some interesting facts about persimmon

    • For many centuries, Japanese people love to drink persimmon leaf tea. Persimmon leaf tea  is called Kaki-No-Ha Cha in Japanese language and it is prepared from the dried leaves of Diospyros kaki or Japanese Persimmon.
    • Persimmon fruits  are eaten fresh, dried, raw or cooked forms.
    • Dried persimmon fruits are known as gotgam and are used to prepare the traditional Korean spicy punch sujeonggwa
    • In Taiwan, fruits of astringent or unripe persimmon varieties are sealed in jars soaked in limewater to get rid of the bitterness. Later these  slightly hardened varieties are sold as “water persimmon” (shuishizi).
    • Persimmons can be used in various dessert dishes, most notably pies. They can be used in cookies, cakes, puddings, salads, curries and as a topping for breakfast cereals.

    written by dr sanjana p

    References

    1. https://pubmed.ncbi.nlm.nih.gov/8937284/
    2. https://pubmed.ncbi.nlm.nih.gov/1592533/
    3. https://pubmed.ncbi.nlm.nih.gov/9255971/
    4. https://pubmed.ncbi.nlm.nih.gov/17574318/
    5. image courtesy Image by azerbaijan_stockers on Freepik

  • Mediterranean diet for preventing obesity & Life style diseases

     Mediterranean diet is a globally approved diet pattern for preventing and managing obesity & life style diseases and thus for sustaining healthy living.

    Obesity and its associated risks are the growing concern in all age groups globally as it is the root cause of various kinds of life style diseases, hormonal disorders, cancers and depression.

      Obesity is a condition which affects the quality of life and the general health of individuals as well as populations. Obesity is closely linked with diabetes and depression even in children, although genetics also plays a contributory role here. The emerging solution to preserve and sustain the health of the population is to adopt healthy lifestyle practices right from the formative years of life. Adults as well as children need to follow healthy food habits and ways for adequate physical activity to ensure better quality of life and productivity.

    In the journey towards adoption of healthy life practices, diet plays a pivotal role. Everyone is worried about the right diet for their health and clinical conditions. This is quite natural and needs advice of a health care provider or nutritionist, particularly if one is affected with life style diseases such as diabetes, heart attack, stroke and some cancers.

    Hormonal disorders like polycystic ovarian syndrome in females, also has been linked with obesity, insulin resistance and metabolic syndrome. This condition requires vigorous physical exercise as well as dietary modifications for reducing insulin resistance and obesity.

     Mediterranean diet is a globally approved diet pattern for preventing and managing many of the life style diseases and sustain healthy living.

    What is Mediterranean diet?

    It is a diet based on traditional diet patterns. Mediterranean diet follows the dietary patterns of people living in Mediterranean region. The diet gives emphasis to the inclusion of whole grains, vegetables, legumes, fruits, nuts, seeds, herbs and spices. Olive oil is included as a chief ingredient of most of the recipes in Mediterranean diet, it being a source of healthy fats. Fish, sea food and poultry are also included in this diet. Although not considered as mandatory, red meat and sweet is allowed occasionally.

    History of origin of Mediterranean diet &its spread

    Now, Mediterranean diet is a popular dietary choice among fitness freaks as well as with people concerned about life style diseases globally. However, it is curious to know that for many decades the diet was part of the lives of various tribes existed in the Mediterranean region.

    The Mediterranean region comprises areas of the globe around the Mediterranean Sea, having the Mediterranean climate characterized by rainy winters and dry, hot summers. It encompasses the countries around Mediterranean sea in three continents Africa, Asia, Europe and certain regions of other continents such as California, Chile, Southwestern Australia, and southern South Africa.

    It was around 1950s  that Ancel Keys, an American scientist noticed the fact that incidence of heart diseases is very low among people of Mediterranean region and he focused his research on the dietary habits of people of this region. His study is known as ‘The Seven Countries Study of Cardiovascular Diseases’.

     Later further advanced research studies conducted over the years confirmed that Mediterranean diet & dietary patterns derived from it are not only beneficial in the prevention of cardiovascular diseases, but also in the therapeutic approach of obesity, type 2 diabetes, metabolic syndrome, cancer or neurodegenerative diseases.

    Mediterranean diet includes food ingredients having healthy, monounsaturated fat, which lowers total cholesterol and low-density lipoproteins [bad cholesterol] levels in the human body.

    Nuts and seeds being an integral part of Mediterranean diet provide monounsaturated fat and are good for health if consumed in moderation.

    Th diet includes fish and seafood & legumes which provide proteins, vital minerals, vitamins and omega fatty acids to the body.

    Vegetables and fruits are important part of this diet and serve as effective antioxidants, sources of vitamins and minerals required for vital functions in the body.

    Health benefits of Mediterranean diet

    Mediterranean diet has numerous health benefits, particularly in the prevention of life style diseases.  Of late numerous studies have elucidated its role in sustaining cognitive functions of brain and nervous system.

    Mediterranean diet helps to:

    • Lower the incidence of heart diseases & stroke
    • It helps to maintain optimum weight and prevent obesity
    • It helps to reduce blood glucose levels
    • It lowers blood cholesterol
    • Mediterranean diet helps to reduce hypertension
    • Reduces the risk of development of metabolic syndrome in obese peope. Metabolic syndrome is the triad of  occurrence of high blood pressure, high levels of bad cholesterol and obesity in individuals.
    • Mediterranean diet includes ingredients that support gut microbacteria. It also improves digestive health.
    • The diet also helps in reducing the occurrence of some type of cancers. [ prostate, colon cancers]
    • Improves brain health & cognitive function.
    • Improves longevity
    • Antioxidants in mediterranean diet helps to prevent free radical injury and helps improved skin health.Antioxidants are beneficial in slowing down ageing preventing oxidative stress to skin and vital organs.
    • High fiber content help reduce bad cholesterol improving cardiovascular health and it also reduces the risk for colorectal cancers.

     

    written by dr sanjana p [copyright]

    References

    1.Wright C.M. Biographical notes on Ancel Keys and Salim Yusuf: Origins and significance of the Seven Countries Study and the INTERHEART Study. J. Clin. Lipidol. 2011;5:434–440. PMID: 22108146 DOI: 10.1016/j.jacl.2011.09.003 https://pubmed.ncbi.nlm.nih.gov/22108146/

    2.      Gotsis E., Anagnostis P., Mariolis A., Vlachou A., Katsiki N., Karagiannis A. Health benefits of the Mediterranean Diet: An update of research over the last 5 years. Angiology. 2015;66:304–318. doi: 10.1177/0003319714532169. https://pubmed.ncbi.nlm.nih.gov/23553669/

    3. https://www.sciencedirect.com/topics/earth-and-planetary-sciences/mediterranean-region

    4. https://pmc.ncbi.nlm.nih.gov/articles/PMC12027923/