Health
Does everyone need to take vitamins — and which are most important? Here’s what to know
Advertisements and social media often suggest that vitamin supplements are important for optimal health — but are they really essential for everyone?
“Vitamins have become a multi-billion-dollar industry, with shelves full of supplements promising better health, more energy and a longer life,” Andrea Soares, a registered dietitian from Top Nutrition Coaching in Miami, Florida, told Fox News Digital.
Just over 57% of American adults took dietary supplements between 2017 and 2020, with multivitamins and minerals being the most popular, according to a recent report from the Centers for Disease Control and Prevention (CDC).
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But what does this mean for you? Fox News Digital spoke to the experts to find out.
What is a vitamin?
Vitamins are nutrients that are essential for the body to function normally, according to Jennifer Messer, president of the New Hampshire Academy of Nutrition and Dietetics and a registered dietitian in New Hampshire.
Just over 57% of American adults took dietary supplements between 2017 and 2020, with multivitamins and minerals being the most popular. (iStock)
“We cannot make vitamins in our bodies, and so we must get them in our diets,” she told Fox News Digital.
(The one exception is vitamin D, which people can also get from the sun.)
Vitamins are either fat-soluble or water-soluble, according to the National Institutes of Health (NIH).
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Fat-soluble vitamins — A, D, E and K — are stored in the body’s fatty tissue, liver and muscles, so they are absorbed better when taken with fatty foods.
Water-soluble vitamins are not stored in the body, so any excess amount is usually excreted in the urine.
Fat-soluble vitamins are stored in the body’s fatty tissue, liver and muscles, so they are absorbed better when taken with fatty foods. Water-soluble vitamins are not stored in the body, so any excess amount is usually excreted in the urine. (iStock)
Thirteen vitamins are considered “essential.”
These include vitamins A, C, D, E and K, as well as the B vitamins (thiamine, riboflavin, niacin, pantothenic acid, biotin, B6, B12 and folate), according to the NIH.
“For most people, a well-balanced diet is sufficient to meet daily vitamin needs,” Soares told Fox News Digital.
“For most people, a well-balanced diet is sufficient to meet daily vitamin needs.”
Vitamin A is easily obtained from eating a balanced diet, vitamin E is abundant in common foods, and most people get enough vitamin C if they eat fruits and vegetables like oranges, strawberries and bell peppers, she said.
Some people don’t get enough vitamins from dietary sources, however.
When are vitamin supplements necessary?
Certain vitamin deficiencies can potentially cause health problems.
“In the U.S., the FDA updated nutrition labels to reflect nutrients of public health concern due to deficiencies or inadequacies in the general population,” Messer told Fox News Digital.
“An individual’s supplement requirements will vary based on medical conditions, dietary restrictions, malabsorption issues and nutrient deficiencies,” an expert said. (iStock)
Vitamin A helps maintain good eyesight, for example — and children who get an inadequate amount are at risk for blindness, according to the CDC.
As vitamin D supports bone health and immune function, people with limited sun exposure may be more prone to bone diseases like osteoporosis, research has shown.
“As of recent regulations, vitamin D is required on nutrition labels,” Messer noted.
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Vitamin B12 is essential for red blood cell production and nerve function, according to Soares.
Folate supports DNA synthesis and prevents neural tube defects (birth defects of the brain, spine or spinal cord), so it is important for women to get adequate amounts before and during early pregnancy, per the CDC.
It’s a common misconception that vitamin supplements are beneficial for everyone, an expert pointed out. (iStock)
It’s a common misconception, however, that vitamin supplements are beneficial for everyone, according to Messer.
“Technically, all vitamins are necessary — however, it is unnecessary to supplement a vitamin unless you are found to be deficient,” she said.
“An individual’s supplement requirements will vary based on medical conditions, dietary restrictions, malabsorption issues and nutrient deficiencies.”
“It is unnecessary to supplement a vitamin unless you are found to be deficient.”
Certain groups may have a greater need for vitamin supplements than others.
“While a vegan diet can fulfill many nutrient requirements, there are certain vitamins, such as vitamin B12 and vitamin D, that may need closer attention,” Messer said.
Vitamin A is easily obtained from eating a balanced diet, vitamin E is abundant in common foods, and most people get enough vitamin C if they eat fruits and vegetables like oranges, strawberries and bell peppers, an expert said. (iStock)
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A new report by the American Heart Association (AHA) included some troubling predictions for the future of women’s health.
The forecast, published in the journal Circulation on Wednesday, projected increases in various comorbidities in American females by 2050.
More than 59% of women were predicted to have high blood pressure, up from less than 49% currently.
The review also projected that more than 25% of women will have diabetes, compared to about 15% today, and more than 61% will have obesity, compared to 44% currently.
As a result of these risk factors, the prevalence of cardiovascular disease and stroke is expected to rise to 14.4% from 10.7%.
The prevalence of cardiovascular disease and stroke in women is expected to rise to 14.4% from 10.7% by 2050. (iStock)
Not all trends were negative, as unhealthy cholesterol prevalence is expected to drop to about 22% from more than 42% today, the report stated.
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Dr. Elizabeth Klodas, a cardiologist and founder of Step One Foods in Minnesota, commented on these “jarring findings.”
“The fact that on our current trajectory, cardiometabolic disease is projected to explode in women within one generation should be a huge wake-up call,” she told Fox News Digital.
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“Hypertension, diabetes, obesity — these are all major risk factors for heart disease, and we are already seeing what those risks are driving. Heart disease is the No. 1 killer of women, eclipsing all other causes of death, including breast cancer.”
Cardiovascular disease is the leading cause of death for women in the U.S. and around the world. (iStock)
Klodas warned that heart disease starts early, progresses “stealthily,” and can present “out of the blue in devastating ways.”
The AHA published another study on Thursday revealing one million hospitalizations, showing that heart attack deaths are climbing among adults below the age of 55.
The more alarming finding, according to Klodas, is that young women were found more likely to die after their first heart attack than men of the same age.
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“This is all especially tragic since heart disease is almost entirely preventable,” she said. “The earlier you start, the better.”
Children can show early evidence of plaque deposition in their arteries, which can be reversed through lifestyle changes if “undertaken early enough and aggressively enough,” according to the expert.
Moving more is one part of protecting a healthy heart, according to experts. (iStock)
Klodas suggested that rising heart conditions are associated with traditional risk factors, like smoking, high blood pressure, high cholesterol, diabetes, obesity and a sedentary lifestyle.
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Doctors are also seeing higher rates of preeclampsia, or high blood pressure during pregnancy, as well as gestational diabetes. Klodas noted that these are sex-specific risk factors that don’t typically contribute to complications until after menopause.
The best way to protect a healthy heart is to “do the basics,” Klodas recommended, including the following lifestyle habits.
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Klodas especially emphasized making improvements to diet, as the food people eat affects “every single risk factor that the AHA’s report highlights.”
“High blood pressure, high blood sugar, high cholesterol, excess weight – these are all conditions that are driven in part or in whole by food,” she said. “We eat multiple times every single day, which means what we eat has profound cumulative effects over time.”
“Even a small improvement in dietary intake, when maintained, can have a massive positive impact on health,” a doctor said. (iStock)
“Even a small improvement in dietary intake, when maintained, can have a massive positive impact on health.”
The doctor also recommends changing out a few snacks per day for healthier choices, which has been proven to “yield medication-level cholesterol reductions” in a month.
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“Keep up that small change and, over the course of a year, you could also lose 20 pounds and reduce your sodium intake enough to avoid blood pressure-lowering medications,” Klodas added.
“Women should not view the AHA report as inevitable. We have power over our health destinies. We just need to use it.”
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Nearsightedness (myopia) is skyrocketing globally, with nearly half of the world’s population expected to be myopic by 2050, according to the World Health Organization.
Heavy use of smartphones and other devices is associated with an 80% higher risk of myopia when combined with excessive computer use, but a new study suggests that dim indoor lighting could also be a factor.
For years, scientists have been puzzled by the different ways myopia is triggered. In lab settings, it can be induced by blurring vision or using different lenses. Conversely, it can be slowed by something as simple as spending time outdoors, research suggests.
Nearsightedness occurs when the eyeball grows too long from front to back, according to the American Optometric Association (AOA). This physical elongation causes light to focus in front of the retina rather than directly on it, making distant objects appear blurry.
The study suggests that myopia isn’t caused by the digital devices themselves, but by the low-light environments where they are typically used. (iStock)
Researchers at the State University of New York (SUNY) College of Optometry identified a potential specific trigger for this growth. When someone looks at a phone or a book up close, the pupil naturally constricts.
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“In bright outdoor light, the pupil constricts to protect the eye while still allowing ample light to reach the retina,” Urusha Maharjan, a SUNY Optometry doctoral student who conducted the study, said in a press release.
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“When people focus on close objects indoors, such as phones, tablets or books, the pupil can also constrict — not because of brightness, but to sharpen the image,” she went on. “In dim lighting, this combination may significantly reduce retinal illumination.”
High-intensity natural light prevents myopia because it provides enough retinal stimulation to override the “stop growing” signal, even when pupils are constricted. (iStock)
The hypothesis suggests that when the retina is deprived of light during extended close-up work, it sends a signal for the eye to grow.
In a dim environment, the narrowed pupil allows so little light through that the retinal activity isn’t strong enough to signal the eye to stop growing, the researchers found.
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In contrast, being outdoors provides light levels much brighter than indoors. This ensures that even when the pupil narrows to focus on a nearby object, the retina still receives a strong signal, maintaining healthy eye development.
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The team noted some limitations of the study, including the small subject group and the inability to directly measure internal lens changes, as the bright backgrounds used to mimic the outdoors made pupils too small for standard equipment.
Researchers believe that increasing indoor brightness during close-up work could be a simple, testable way to slow the global nearsightedness epidemic. (iStock)
“This is not a final answer,” Jose-Manuel Alonso, MD, PhD, SUNY distinguished professor and senior author of the study, said in the release.
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“But the study offers a testable hypothesis that reframes how visual habits, lighting and eye focusing interact.”
The study was published in the journal Cell Reports.
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