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Vegetables are certainly one of the healthiest foods rich in vitamins, minerals, fiber, and protective plant compounds, they play a big role in maintaining general health and preventing common diseases. However, when it comes to cooking vegetables, how you cook them can make a difference in their nutritional value.
Among the most common cooking methods are boiling and steaming, both of which affect vegetables in different ways. Although boiling immerses the vegetables in water, steaming uses hot vapor to cook the food. So, should you steam or boil vegetables for the best health benefits?
Vegetables have such essential nutrients that they present loads of health benefits to humanity. They are not just rich in vitamins but carry beta-carotene also, which acts like a shield against oxidative stress from any source and decreases the chances of severe diseases like heart disease, cancer, and diabetes. In addition, vegetables act like a great source of dietary fibers, which are imperative to digest food, maintain healthy blood sugar, and increase satiety for a long time.
However, as healthy as vegetables are, the way they are cooked plays a huge role in how well our body can absorb these nutrients. The cooking method you choose can either enhance or diminish the nutritional value of your vegetables.
Steaming is considered to be one of the healthiest methods for cooking vegetables. In this method, the vegetables are placed in a perforated basket above boiling or simmering water and allow steam to rise and cook the food gently. Since steaming doesn't require direct contact with water, there is a loss of fewer nutrients as compared to boiling.
One of the main benefits of steaming is that it does help retain water-soluble vitamins, vitamin C and B vitamins, which are commonly leached out when boiled vegetables soak in water. Research evidence has shown that steaming can have a higher concentration of retention of some vitamins, including vitamin C, beta-carotene, and flavonoid antioxidants, than boiling does. In fact, it was found in a 2009 study that steaming broccoli, one of the healthiest vegetables, would retain the most nutrients in comparison to five other ways of cooking, including boiling, microwaving, and stir-frying.
Steaming also maintains plant compounds like flavonoids, which are among the most potent antioxidants known for their association with several benefits, including cancer prevention. A study on different cooking methods showed that steaming enhanced the flavonoid antioxidants in most vegetables, including broccoli, spinach, and carrots. However, some vegetables, such as carrots, are increased in beta-carotene when steamed. Beta-carotene is a form of vitamin A that is crucial for eye health and immune function.
One of the interesting results of comparative research between steaming and boiling is that the vitamin C loss is less during steaming, especially as it is one of the sensitive vitamins to heat and water. It has been demonstrated that, in terms of loss, steaming vegetables have shown a very minor loss of vitamin C, only 14%, after five minutes of steaming. However, a loss of 54% was noted when boiling the vegetables.
Boiling the vegetables can save so much time, but boiling the vegetables does not guarantee their highest nutrient retention. Boiling simply puts the vegetables under hot water and cooks it under direct heat. However boiling can be said to be very swift since it will result in getting rid of nutrients found in water. To explain, many vegetables have massive portions of vitamins; for example, vitamin C can be dissolved by hot water during boiling. Most, therefore will leach away from the prepared meals.
Aside from Vitamin C, beta-carotene is one of the few major losers in boiled foods. Laboratory tests done on peas and cauliflower reveal that their more than 50 percent levels of antioxidants were destroyed. Boiling also causes huge losses of vitamins and minerals to vegetables such as spinach, broccoli, and Brussels sprouts. If you have to boil your vegetables, try to limit the time and avoid overcooking to minimize the loss of nutrients.
Interestingly, some vegetables, like carrots, may benefit from boiling, as boiling has been shown to increase the bioavailability of beta-carotene. However, this benefit is typically outweighed by the significant loss of other nutrients when boiled.
If you’re looking for an alternative cooking method that preserves nutrients, microwaving could be a good option. Microwaving is the method of cooking food using electromagnetic waves and requires very less or no water. Thus, microwaving is a gentler method of cooking that helps retain water-soluble vitamins such as vitamin C. A study conducted in 2003 showed that vegetables such as zucchini, carrots, and beans, when cooked with little water in a microwave oven, had a significantly high amount of phytonutrients compared to those cooked by other methods, including boiling.
While steaming and microwaving are excellent ways for cooking vegetables, you can take it to the next level for maximizing the health benefits of your vegetables by using healthy fats in cooking. For instance, sautéing vegetables in extra-virgin olive oil can enhance the absorption of fat-soluble vitamins such as vitamin A, D, E, and K. Olive oil is also rich in antioxidants and polyphenols, which provide additional health benefits.
When cooking vegetables, do not overuse salt. Instead, season with fresh herbs, spices, and lemon juice. This will provide flavor without the negative health effects of too much sodium.
This argument in the war between steaming and boiling vegetables: it is simply a way to better retain the nutrients in food. This way of cooking helps in keeping vitamins and antioxidants from vitamin C, beta-carotene, and flavonoids that play an important role in human health.
The better it would be to steam the vegetables if you want to derive maximum health benefits from it. Steam or broccoli, spinach, carrots-any food cooked- is only allowed by steaming so that a maximum amount of nutrient value is retained. Further alternative, to microwaving, minimal water can be used too. No matter how one cooks his vegetables, add healthy fats like olive oil and season with herbs; in this way, nutrition of these vegetables will be maximized further.
Making small differences in how you prepare vegetables can make a big difference in your health. The next time you get ready to prepare a meal, steam it instead of boiling so that you have a much healthier, more nutrient-rich plate of vegetables.
Effects of different cooking methods on health-promoting compounds of broccoli. J Zhejiang Univ Sci B. 2009
Influence of cooking methods on antioxidant activity of vegetables. J Food Sci. 2009
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Eggs are a great source of protein. At the same time, they are one of the most common foods that cause allergies in children.
A new study conducted in Australia showed that introducing eggs to children before the age of one may reduce the risk of allergy by 17 per cent. The findings were published in the journal JAMA Pediatrics.
Jennifer Koplin, Associate Professor at the Child Health Research Centre at The University of Queensland, said: “Australia has one of the highest rates of food allergy in the world, with one in 10 infants allergic to one or more foods".
To curb the allergy rates, the Australian infant feeding guidelines, issued by the Australasian Society of Clinical Immunology and Allergy in 2016, revolutionized allergy prevention by advising parents to introduce well-cooked egg and smooth peanut butter soon after starting solid foods, generally around six months of age.
The research, led by a team from UQ and the Murdoch Children's Research Institute, examined 7,200 children in two Australian population-based studies to assess whether egg allergy rates had declined since the introduction of the guidelines. The risk of allergy decreased by 17 per cent among babies who started eating eggs early.
“Most parents followed the guidelines, and these results provide reassurance that this advice will help reduce the chance of their child developing an egg allergy,” Dr Koplin said.
Also read: I Ate Eggs And Toast For Breakfast Every Day—Here’s How My Body Reacted
According to Associate Professor Rachel Peters of the Murdoch Children's Research Institute, the reduction in egg allergy was more pronounced in babies with eczema, a known risk factor for food allergies. Among these children, egg allergy rates were reduced from 35 per cent to 22 per cent.
“The introduction of the 2016 guidelines was a major change from most advice given in the 1990s and early 2000s, which recommended parents delay giving eggs and other allergenic foods until 1–3 years of age if there was a strong family history of allergy,” Dr Peters said.
Other common allergy-causing foods, such as cow's milk, fish, sesame, wheat, and tree nuts, are also recommended to be included in a child's diet before one year of age. Dr Koplin, however, urged for more research into food allergies.
Read More: Eating Almonds Daily Can Prevent Cognitive Decline In Prediabetic Adults
According to the Mayo Clinic, egg allergy symptoms usually start a few minutes to a few hours after eating eggs or foods containing eggs. While egg allergies can occur as early as infancy, most children outgrow their egg allergy by age 16.
Egg allergy symptoms can include:
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Food is arguably one of the most important parts of life, as it is essentially the fuel that the body runs on. Food is so important to life that slight complications, changes, or missteps can cause great harm to you. If the food is unsafe, then that can act like poison as well. According to the World Health Organization (WHO), unsafe food causes around 866 million illnesses and 1.5 million deaths every year.
The WHO, in its recent report, reveals that children under 5 years of age experience 29 per cent of the health burden due to unsafe food, with 143,000 deaths in 2021.
WHO Director-General Dr Tedros Adhanom Ghebreyesus said, “Food safety is not an abstract issue – it touches every meal, every family, every day. Unsafe food has always been a major public health concern, but until now, we lacked the bigger picture of its staggering human and economic toll. These new estimates change that.”
Thus, it is crucial to know what to eat, how to eat, and protect yourself from foodborne diseases. And there is a strong connection between unsafe food and food myths; misunderstandings in the kitchen can cost you dearly, so knowing popular food myths from the global health body, WHO, is crucial.
People often think that the smell and appearance of food can help us know its condition, but it's a complete hoax, as the WHO reports that most microorganisms that can make you sick don’t change the look or smell of the food.
This is arguably one of the popular food-related misconceptions, as in most households, the washing of chicken before cooking is seen as a healthy practice emphasizing making sure that the raw meat has been properly washed and soaked, but the WHO's report proves otherwise. The global body, washing poultry can spread harmful microorganisms to hands, surfaces, utensils, or other food.
Some think that fruits and vegetables grown organically do not require washing, as they are not cooked with pesticides or chemical fertilizers, and that is a myth. The WHO said all produce, including organic, should be washed with clean water to remove physical contaminants and reduce the risk from any harmful microorganisms or chemicals.
Another common habit is to use dishcloths to clean them after washing, and that is a big no from WHO, as dishcloths and sponges can carry and spread dangerous bacteria.
Sometimes people do not keep leftover food outside the refrigerator, and that is also a mistake because food can be dangerous to consume if left at room temperature for more than two hours.
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Prediabetes affects more than 600 million people worldwide and is linked not only to an increased risk of type 2 diabetes but also to impaired brain function.
Adding a small quantity of almonds to the daily diet on their own or added to cereal, yogurt, curries, salads, and other dishes may help boost brain health and prevent a decline in cognitive function in adults with prediabetes, experts said.
Almonds contain
The findings showed that eating just a few almonds each day may benefit cognitive performance, metabolic health, and markers of inflammation and oxidative stress in middle-aged Asian Indian adults with prediabetes.
“Adults with prediabetes are vulnerable to a decline in cognitive function. Our study indicates that just one simple dietary change – adding a small quantity of almonds to the daily diet – may help support brain health and improve cognitive performance in some populations,” said Dr. Anoop Misra, co-investigator and Chairman, Fortis-CDOC Center of Excellence for Diabetes, Metabolic Diseases, and Endocrinology in New Delhi, part of the study.
He noted that daily almond consumption could help lower the risk of prediabetes progressing to type 2 diabetes, a condition associated with an increased risk of dementia.
Also read: Unsafe Food Causes 1.5 Million Deaths Annually; Children Under 5 Face 3x Higher Risk: WHO
In a 24-week study, 60 Asian Indian adults aged 40–60 with prediabetes were assigned to either a control group or an almond group.
Those in the almond group consumed 32–42 grams of almonds daily as part of a calorie-matched diet.
Researchers assessed cognitive performance, blood sugar levels, cholesterol, weight, BMI, and waist circumference before and after the study.
Participants in the almond group experienced improvements in executive function and processing speed, both key measures of cognitive performance.
They also demonstrated better blood sugar control, including lower fasting blood glucose, lower blood glucose levels two hours after eating, and improvements in HbA1c, a marker of long-term blood sugar control.
Additional metabolic benefits included significant reductions in body weight, body fat, BMI, waist circumference, total cholesterol, and LDL cholesterol.
Read More: PM Modi’s Push To Reduce Oil Intake Key To Fighting India’s Obesity And Diabetes Crisis, Say Experts
Participants consuming almonds also showed improvements in markers related to inflammation and oxidative stress.
“The findings showing improvements in cognitive function, blood sugar control, body weight, and cholesterol levels reinforce the role of almonds as a superfood. Their versatility and convenience make them an easy addition to everyday eating habits, while also providing important nutrients that support overall well-being,” said Ritika Samaddar, Regional Head, Department of Clinical Nutrition and Dietetics, Max Healthcare.
“Inflammation and oxidative stress are associated with cognitive decline. Our study found those in the almond group had lower levels of both, along with higher levels of a protective antioxidant (Vitamin E), compared with the control group,” said Dr. Seema Gulati, lead researcher of the study and Head of the Nutrition Research Group at the National Diabetes, Obesity and Cholesterol Foundation in New Delhi.
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