Calcium, protein, vitamin B12 and vitamin D deserve greater attention after age 50 as changes in metabolism, appetite, muscle mass and nutrient absorption can make it more difficult to maintain optimal nutrition.
By yourNEWS Media Newsroom.
Nutritional needs change with age, and adults over 50 may need to pay closer attention to several nutrients even as their overall calorie requirements decline.
Health experts have identified calcium, protein, vitamin B12 and vitamin D as four nutrients that can become particularly important later in life. Aging is associated with gradual losses of muscle and bone, reduced appetite and changes in digestion and nutrient absorption, all of which can make it more difficult to obtain adequate nutrition.
According to Health.com, older adults may eat less while simultaneously becoming less efficient at absorbing certain vitamins and minerals.
Nutrition literature has similarly documented that calorie requirements typically decline with age even though the body’s need for many essential nutrients remains unchanged or may increase.
“On average, adult energy needs decline an estimated 5% per decade,” one nutrition textbook states, noting that lean body mass tends to decrease while basal metabolic rate slows.
That combination means the nutritional quality of the foods a person eats can become increasingly important.
Calcium Becomes More Important as Bone Loss Accelerates
Calcium remains essential for maintaining bones and teeth, but its functions extend well beyond the skeleton.
“Getting enough calcium is essential for healthy teeth and bones,” the article stated.
Calcium is also involved in normal muscle function, nerve signaling, blood clotting and blood vessel function.
Aging can make calcium absorption less efficient at the same time bone mineral loss becomes a greater concern.
Men age 51 and older need about 1,000 milligrams of calcium per day, according to the article, while women in that age group need approximately 1,200 milligrams.
Maintaining adequate calcium intake is particularly important for reducing the risk of osteoporosis and fractures. The article also cited possible metabolic benefits associated with sufficient calcium intake, although calcium should not be viewed as a treatment for diabetes.
Vitamin D plays an important role because the body needs it to absorb and use calcium effectively.
Diet and lifestyle can also influence calcium balance. High sodium intake can increase calcium losses, while excessive caffeine consumption may modestly interfere with calcium balance when intake is already inadequate.
More calcium is not necessarily better, however. Excessive supplementation can create health risks, making it important to consider total intake from both food and supplements.
Protein Can Help Preserve Aging Muscle
Maintaining muscle becomes increasingly important with age.
Adults can lose approximately 3% to 5% of their muscle mass per decade beginning around age 30, with the process often accelerating later in life.
Adequate protein intake, particularly when combined with resistance exercise, can help preserve muscle and physical function.
The article cited an intake of approximately 1 to 1.3 grams of protein per kilogram of body weight per day as a range that may help counter age-related muscle loss for many older adults.
For a person weighing 150 pounds, or about 68 kilograms, that would amount to roughly 68 to 88 grams of protein per day.
Individual requirements can vary substantially depending on body size, activity level, medical conditions and overall calorie intake.
Insufficient protein can contribute to greater losses of muscle mass and strength, potentially increasing the risk of falls, frailty and declining mobility.
Resistance training provides an important complement to protein intake because muscle requires both adequate building materials and a physical stimulus to maintain strength.
Vitamin B12 Absorption Can Become Less Efficient
Vitamin B12 plays essential roles in red blood cell production, nervous system function and DNA synthesis.
It occurs naturally in foods including eggs, fish, meat and other animal products, while many cereals and other foods are fortified with the vitamin.
The challenge for older adults is not necessarily that their body’s requirement for B12 increases dramatically. Instead, the ability to absorb naturally occurring B12 from food may decline.
Changes in stomach acid production can make it harder to separate vitamin B12 from food proteins, and certain medications can further reduce absorption.
For that reason, adults age 50 and older are commonly advised to obtain at least some B12 from fortified foods or supplements, where the vitamin is already in a form that does not require the same digestive process.
Vitamin B12 deficiency can affect the nervous system and blood cells and, if prolonged, may contribute to neurological problems.
Research has also associated low B12 status with cognitive impairment and dementia, although an association does not establish that B12 supplementation prevents dementia in people who are not deficient.
The recommended daily intake does not substantially increase simply because a person turns 50, but absorption becomes a more important consideration with age.
Vitamin D Remains a Common Concern
Vitamin D works closely with calcium to support bone health and also contributes to muscle function, immune activity and normal nerve function.
The article reported that 61% of older U.S. adults do not obtain adequate vitamin D.
Unlike most nutrients, vitamin D can be produced in the skin through exposure to sunlight. Food sources are comparatively limited, however, which is why fortified foods and supplements are commonly used.
Older adults can face additional challenges because the skin becomes less efficient at producing vitamin D with age, while people who spend little time outdoors may receive less sun exposure.
The article also pointed to emerging research examining whether vitamin D status is associated with biological aging. Those findings remain an area of study and do not establish vitamin D supplements as an anti-aging treatment.
Adequate vitamin D is important, but excessive supplementation can also be harmful. Very high amounts can cause calcium levels in the blood to rise and lead to other health problems.
Calcium, Protein, B12 and Vitamin D Aren’t the Only Nutrients to Watch
Other nutrients can also deserve additional attention as people get older.
Iron deficiency can result in anemia and should be evaluated rather than automatically treated with supplements, particularly in older adults.
Magnesium contributes to hundreds of processes in the body, including muscle and nerve function, and inadequate intake has been associated with several health concerns.
Potassium supports normal blood pressure, muscle function and bone health, while fiber becomes especially important for digestive regularity and overall metabolic health.
Aging can make obtaining enough of these nutrients more challenging because appetite may decrease even though the body’s nutritional requirements remain substantial.
The broader goal after 50, therefore, is not simply to eat more. It is to make the food being consumed increasingly nutrient-dense.
Calcium, protein, vitamin B12 and vitamin D represent four important areas to monitor, but individual requirements depend on factors including diet, medications, activity level and medical conditions.
The article advised adults to discuss significant dietary changes or supplementation with a healthcare provider, particularly because excessive amounts of some nutrients can be harmful and deficiencies may require individualized treatment.
Source: Natural News
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