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Leafy greens, we all know are one of the healthiest foods on the earth. It offers so much, the benefits are countless, whether it is brain health, heart health or to control your blood sugar levels. But there is always a debate between which one is better. Spinach or kale?
So let's get into it!
Kale, we often must have heard its name listed as a "superfood". The reason is because of the rich nutrients it has to offer. However, both, spinach and kale are powerhouse leafy greens, rich in various nutrients.
If one must break down its nutrients, then we can broadly divide it between the fiber content, vitamin K, vitamin C, vitamin A, calcium, and folate.
All leafy greens are rich in dietary fiber and thus is essential for feeding your gut microbiome. This is the community of good bacteria that lives in your gut and supports your digestive health. The recommended daily amount or the RDA of fiber is 25 grams per day. So, if you go for a cup of raw spinach, this gives you around .7 grams of dietary fiber, whereas one cup of raw kale gives you a bit more. It has .9 grams of fiber.
A study published in M J Lifestyle Med titled . Closing America's fiber intake gap: Communication strategies from a food and fiber summit, found that most Americans actually do not get their RDA for fiber met. So, adding spinach and kale could be a great way to give your RDA fiber a start!
Vitamin K is necessary for blood clotting or lowering blood flow following an injury so that the wound can heal. In addition to calcium and vitamin D, it also supports healthy bones. While some animal products and fermented foods include vitamin K2, a 2020 study titled Vitamin K2 needs an RDI separate from vitamin K1, notes that lush greens like spinach and kale have vitamin K1.
The recommended daily intake of vitamin K is 120 microgrammes (mcg). A cup of raw kale has 82 microgrammes of vitamin K, while a cup of raw spinach contains 145 microgrammes.
It is a water-soluble vitamin and antioxidant that protect cells from damage and supports immune health. While it is often attributed to citrus fruits like oranges, vitamin C can also be found in leafy greens and both kale and spinach could be a great source. US Food and Drug Administration (FDA) recommends around 80 milligram of daily vitamin C. In one cup of raw spinach, you can get 8.5 milligrams, while kale provides 20 milligrams of daily vitamin C.
As per the FDA, vitamin A is important not only for your immune system, but also for your eye health. One must have at least 3,000 international units daily. The Office of Dietary Supplements notes that spinach and kale contain compounds called carotenoids, which our bodies convert to a usable form of vitamin A. This way you can have these leafy greens in your diet to fulfill your requirement of vitamin A. In one cup of spinach, you can get 2,810 international units of vitamin A, whereas in one cup of kale, you will find 1,010 international units of vitamin A.
Leafy greens are a rich source of calcium, an important nutrient which supports healthy bones and teeth, nerve communication, and muscle movement. The RDA for calcium in adults is 1,300 milligrams and one cup of raw spinach contains 30 milligrams of calcium, whereas in kale, it has 53 milligrams.
It is a B vitamin which is best known for its important in pregnancy and that provides neural tube defects like spina bifida in fetuses. The RDA for folate is 400 micrograms in pregnant mothers and 600 for those who are lactating. In one cup of spinach, one can get 58.2 micrograms of folate, whereas kale contains 13 micrograms of folate.
Now that you know the nutrients that kale and spinach contain, you make your own decision. This could be decided based on your requirement. The best way to do this is by talking to a healthcare expert, or a nutritionist who can recommend you better based on your body's need.
Drinking beer, as per experts, can be good for your immune system. (Photo credit: iStock)
Many people turn to a pint of beer after a busy day at work to unwind and blow off steam, but little do they realise that they might be making their brain healthier in the process. According to scientists, a pint of beer has a host of health benefits to offer - apparently, it has brain-boosting vitamin B6, providing about 15 per cent of your daily requirement. Most of the ingredients used in beer are barley, yeast, and wheat, and these ingredients are sources of vitamin B6. However, just because of some benefits, one must not go on a mindless drinking spree.
The study, published in the Journal of Agricultural and Food Chemistry, found some health benefits of beer that deserve recognition and credit, but it did not completely overlook the drawbacks. In fact, the drawbacks outweigh the benefits of drinking beer - beer belly and high blood pressure, for instance. In this study, however, researchers dug deeper into the potential benefits of drinking beer. Some of the key benefits of drinking beer are:
Vitamin B6 is found in some foods, and in supermarkets, you can also buy foods fortified with vitamin B6. Some of the best dietary sources of vitamin B6 are:
The study found that bock beer has the highest levels of vitamin B6 because of its high alcohol content. Following this are wheat beer and other dark beers. Non-alcoholic beers, on the other hand, have ethanol removed after full fermentation and provide higher vitamin B6 levels than those that are made with yeasts that produce less ethanol.
Researchers noted that men need about 1.4 mg of vitamin B6 per day and women need 1.2 mg. An average lager can provide 20 per cent of the daily requirement, while a non-alcoholic version can provide about 59 per cent. The research further found that one litre of beer can contain 0.3 to 1 mg of vitamin B6. The study findings, therefore, are only beneficial for people looking to optimise their vitamin B6 intake. Researchers also said that because vitamin B6 is found in abundance in food sources, there is almost no need for one to turn to beer for this purpose.
Especially for people dealing with certain health issues, such as chronic kidney disease or alcoholism, beer must not be relied upon to increase vitamin intake. Instead, it is important to focus on other sources of B vitamins like B12 or B2, which are found in abundance in animal foods and dairy products. These foods can also help you absorb energy better from food and play a role in metabolism. People who are vegan can opt for other fortified substitutes to meet their nutritional requirements.
Credit: iStock
Fruits and vegetables are widely recommended to improve health and reduce the risk of cancer and other diseases. However, a new study claimed that eating a very healthy diet—packed with fruits, vegetables, and whole grains—can raise the risk of lung cancer.
Shockingly, the study showed that the risk of lung cancer with a healthy diet may be higher in younger non-smokers.
The research from the University of Southern California, presented at the annual meeting of the American Association for Cancer Research, found that patients under 50 diagnosed with lung cancer often had better-than-average diets.
The experts zeroed in on the culprit—pesticide exposure from conventionally grown produce.
"Our research shows that younger non-smokers who eat a higher quantity of healthy foods than the general population are more likely to develop lung cancer," said lead investigator Jorge Nieva, a medical oncologist and lung cancer specialist with USC.
"These counter-intuitive findings raise important questions about an unknown environmental risk factor for lung cancer related to otherwise beneficial food that needs to be addressed," Nieva added.
According to the researchers, the reason may lie in environmental exposure, particularly pesticides used in agriculture. Nieva noted that commercially produced (non-organic) fruits, vegetables, and whole grains are more likely to carry higher levels of pesticide residue compared to dairy, meat, and many processed foods.
He also pointed out that agricultural workers who are regularly exposed to pesticides tend to have higher rates of lung cancer, which supports the possibility of a connection.
The study also found that young women who do not smoke are diagnosed with lung cancer more often than men in the same age group. Women in the study also tended to consume more fruits, vegetables, and whole grains than men.
What Is Lung Cancer?
Lung Cancer is one of the most common and serious types of cancer. It is also the leading cause of cancer-related deaths worldwide, with approximately 2.5 million new cases and 1.8 million deaths reported in 2022.
Traditionally, lung cancer occurs in older people. However, non-smokers age 50 and younger, particularly women, are now experiencing increasing rates of lung cancer and are more likely than men to develop the disease.
In many cases, there are no symptoms; however, one must look out for these:
Why More Research Needed
Nieva emphasized that more research is needed to confirm any link between pesticide exposure and lung cancer in younger people, especially women.
In this study, researchers did not directly measure pesticide levels in the foods participants ate. Instead, they estimated exposure using existing data on average pesticide levels in food categories such as fruits, vegetables, and grains.
Coffee can help manage blood sugar better in diabetes patients. (Photo credit: AI generated)
Black coffee or an espresso shot is not everyone’s cup of tea, but for those who are already in love with it, giving it up can be difficult. This drink is a favourite among weight watchers, fitness enthusiasts, and especially people with type 2 diabetes. Diabetics, in particular, are often recommended black coffee because it contains almost zero calories per cup. Not only does it boost stamina, but it also works well to aid weight loss and manage blood sugar levels. Experts say that drinking three to five cups of black coffee a day can help boost levels of polyphenols, and these findings were published in the International Journal of Molecular Sciences.
Also Read: UK Tobacco and Vapes Bill: Smoking Ban for Anyone Born After 2008 Becomes Law
For this, researchers compiled data from 149 publications and examined the effects of coffee on metabolic processes and the consequent development of type 2 diabetes. Researchers focused on five hydroxycinnamic acids in coffee and analysed the effects of polyphenols on the pancreas, small intestine, muscle, liver, and tissues. The analysis also showed that black coffee can help regulate blood sugar levels, have an anti-inflammatory effect, enhance insulin sensitivity, and improve glucose metabolism.
The study results were similar for both caffeinated and decaffeinated coffee, indicating that the benefits were derived from compounds other than caffeine. This was associated with a 20–30 per cent lower risk of type 2 diabetes in regular coffee drinkers. Researchers stated that further studies are required, but the benefits of drinking black coffee are evident.
Bioactive compounds such as hydroxycinnamic acid derivatives and chlorogenic acid are found in coffee, and they have the potential to help prevent and manage type 2 diabetes. Researchers also found that coffee can be an integral part of a healthy lifestyle. However, experts expressed concern about the real-life applications of these findings.
Black coffee essentially consists of coffee beans and hot water. One cup contains approximately three calories, making it ideal for weight loss purposes. Coffee beans contain about 200 compounds, most of which are beneficial for health. When consumed together in the form of black coffee, these compounds may have a combined beneficial effect. Therefore, these anti-inflammatory, weight loss-friendly, and blood sugar-related benefits make it a healthy choice for people with diabetes.
Dr Rajiv Kovil, Head of Diabetology and weight loss expert at Zandra Healthcare, said: “Black coffee can help people with diabetes if used in the right way. It has almost no calories, no sugar, and a very low glycaemic impact due to its low glycaemic index, so it does not spike blood sugar. It also contains natural compounds such as caffeine and antioxidants that may slightly improve insulin sensitivity and metabolism. In practice, we often see better sugar control when patients replace sugary drinks with plain black coffee. However, it is not a treatment or a magic solution. Too much coffee can disturb sleep, increase stress hormones, and actually worsen sugar control. The key is moderation — one to two cups a day, without sugar or cream. Think of black coffee as a supportive habit, not a replacement for medicines, diet, or exercise. Good diabetes care still depends on a structured, scientific approach, with coffee playing only a small but helpful role.”
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