Credits: Canva
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.
Credit: iStock
Coffee is one of the world’s most widely consumed beverages and has been linked to various health benefits, including a lower risk of conditions such as type 2 diabetes and cardiovascular disease. However, the biological mechanisms behind these benefits remain unclear.
Now, a Finnish study suggests that people who regularly drink coffee may have healthier body composition and metabolic markers.
The study, published in the European Journal of Nutrition, also found distinct associations between coffee consumption and sex hormones in men and women.
Researchers from the University of Oulu in Finland analyzed data from 2,264 participants, all aged 46, from the Northern Finland Birth Cohort 1966. They examined how coffee consumption was associated with circulating metabolites, cardiometabolic risk markers and sex hormones.
Compared with people who drank less coffee, those who consumed more had:
These biomarkers have previously been linked to insulin resistance and an increased risk of type 2 diabetes when chronically elevated.
The strongest sex-specific associations were observed in men. Among men, higher coffee consumption was linked to:
The researchers stated that hormonal pathways may partly explain the relationship between coffee consumption and metabolic health.
“What stood out in our findings was a distinct hormonal signature that didn't disappear even after we took into account BMI and lifestyle factors, with several of these associations differing between men and women,” said lead author Luca Verroest, a doctoral researcher at the University of Oulu.
However, the findings do not prove that drinking coffee directly makes people leaner or healthier. The study was observational, meaning it identified associations between coffee consumption and metabolic measures rather than establishing cause and effect.
Further research is needed to determine whether coffee itself contributes to these differences in body composition and metabolic health.
According to a recent scientific statement from the American Heart Association (AHA), published in the peer-reviewed journal Circulation, for most healthy adults, drinking up to five cups of black caffeinated coffee a day — providing up to 400 mg of caffeine — is considered safe and may even benefit heart health.
However, the statement noted that how coffee is brewed could make a difference, not just for its taste but also for cholesterol levels.
A review of the latest evidence on caffeine and cardiovascular health found that brewing methods matter because some types of coffee contain compounds that can raise LDL, or “bad,” cholesterol.
The review also found that drinking three to five 8-ounce cups of regular black coffee daily was associated with a lower risk of:
Heart disease
Stroke
Heart failure
Type 2 diabetes
Some abnormal heart rhythms.
Credit: iStock
For decades, people have been advised to avoid full-fat dairy over concerns that it could contribute to weight gain and higher cholesterol levels. Now, a new, albeit small, study challenges that view. It found that three daily servings of full-fat dairy did not worsen weight or cholesterol and may even offer some health benefits.
The study, led by researchers at the University of Toronto, found that adults who consumed three servings of full-fat dairy each day did not experience adverse changes in blood cholesterol, blood lipids or insulin resistance. The findings were published in The Journal of Nutrition.
"Those that had three servings of dairy didn't have adverse levels of blood cholesterol or lipids or evidence of insulin resistance," said Professor Harvey Anderson of the University of Toronto.
Dairy foods contain saturated fat, which has traditionally been associated with higher cholesterol and an increased risk of cardiovascular disease.
As a result, dietary recommendations in Canada and many other countries have generally encouraged people to choose fat-free or low-fat dairy products to reduce saturated fat intake.
However, Anderson, a professor of nutritional sciences at the University of Toronto's Temerty Faculty of Medicine, said human research has not always supported these concerns.
Numerous human studies have found no link between full-fat dairy consumption and harmful health outcomes.
To examine the link, the 12-week study included 74 adults with overweight or obesity who were randomly assigned to one of three dietary groups:
After 12 weeks, researchers found no meaningful differences in weight gain, body composition or cholesterol levels between people following the low-dairy diet and those consuming three servings of dairy each day.
On the other hand, people consuming more dairy showed improvements in blood pressure and consumed more calcium, protein, and vitamin D.
The reason may be the "dairy matrix hypothesis," the researchers said. This suggests that the health effects of a food may depend on how its components interact rather than simply on the amount of one nutrient it contains.
"With dairy products, it's got two proteins -- casein and whey -- that are bound together with fat and with nutrients mixed in," Anderson said.
According to Anderson, this complex structure allows nutrients in dairy foods to be delivered to the body gradually. That may help explain why the effects of eating dairy can differ from what would be predicted by looking at saturated fat or other individual nutrients in isolation.
Anderson said the findings may be particularly relevant for older adults. As people age, they generally require less energy and may struggle to consume enough protein and other essential nutrients while maintaining an appropriate calorie intake.
Dairy is already a familiar food for many older adults and provides energy, protein and other nutrients. Anderson said it could therefore offer a practical way to help meet nutritional needs without increasing the risk of diabetes or other chronic diseases.
More broadly, the findings support an approach to nutrition research and dietary guidance that considers whole foods rather than focusing primarily on individual nutrients.
With nutrition trends constantly changing and dietary advice sometimes appearing contradictory, Anderson offered a simple message: "Keep it simple, eat a variety of foods and not too much of anything."
Credit: AI
Paneer has long been a staple in Indian households, valued for its high protein content and versatility. However, growing concerns over food adulteration and the increasing availability of cheaper alternatives have brought analogue paneer into the spotlight.
While both products may look similar on the plate, they differ significantly in how they are made, their nutritional value, and their potential impact on health.
Real paneer is made by curdling milk. It naturally contains dairy protein (casein), calcium, and other milk nutrients.
The nutritional differences between the two can be significant. While genuine paneer provides complete protein and beneficial dairy nutrients, analogue paneer may contain lower-quality protein, higher amounts of unhealthy fats, sodium, and food additives depending on its formulation.
Regular consumption of heavily processed versions, particularly those high in trans fats or saturated fats, could contribute to long-term health concerns when eaten frequently as part of an unhealthy diet.
That said, not all analogue paneer products are nutritionally poor, making it important for consumers to read ingredient labels and choose products carefully.
Analogue paneer is typically made using vegetable fats/oils, starches, emulsifiers, and other additives to mimic paneer's texture and appearance. It is often cheaper and may contain substantially less protein than real paneer.
If someone regularly eats analogue paneer believing it is real paneer:
Also read: Why Has FSSAI Banned The Sale Of Dabur India's Ghee, Honey & Other Products?
That said, not all analogue paneer is inherently harmful. When manufactured properly and clearly labeled, it is a legal food product. The health impact depends on its ingredients and how often it is consumed.
Occasional consumption is unlikely to be a major problem for most healthy people. However, people with heart disease, high cholesterol, diabetes, or those trying to maintain a balanced diet may benefit from choosing traditional paneer more often.
Understanding what goes into the food we eat and making informed choices can help ensure that convenience does not come at the cost of good nutrition.
By Dr. Aakash Patel, Internal Medicine, Sterling Hospital, Gandhidham
© 2024 Bennett, Coleman & Company Limited