Among other major life changes, such as retirement and Medicare enrollment, those aged 60+ years have nutrition needs different from those in their 20s, 30s and even 40s.
Nutrients of Concern
Those aged 65+ are at increased risk for nutrient deficiencies, particularly water (yes, water is an essential nutritient), vitamin 12 and folate; vitamin D, calcium and zinc. As you age, your organ function begins to decline, resulting in an increased risk for developing chronic health conditions, such as high blood pressure. A healthy, nutrient-dense diet is essential. As your body’s own natural antioxidant system becomes less effective, you need to increase your intake of antioxidant vitamins, such as vitamin A (in the form of beta-carotene, vitamin E and C).
General Dietary Supplement Criteria – Choosing a Vitamin
Among those MVIs marketed toward the ’50+ crowd’ look for options that offer 100% of the RDA or AI (recommendation) for vitamins C, E, B12, B6 and folic acid, as well as for the minerals selenium and magnesium. Many MVIs fall short on magnesium. Look for one that contains at least 100 mg (25 to 33% of your daily requirment). There is evidence that vitamin K may be important for older Americans, so look for a MVI that offers about 25 mcg (except if you take Coumadin or another blood thinning medication). Vitamin K interferes with blood-thinning medications. The nutrients mentioned above are especially important for bone health, heart health and energy metabolism.
Potassium and Other Minerals
Choosing foods rich in potassium, such as many fruits and vegetables, is important because potassium (along with calcium and magnesium) may reduce blood pressure and potassium is a major mineral, needed in large quantities. While widely found in the food supply, it is the #1 nutrient deficiency in the U.S. Vitamins and minerals are best absorbed and used by your body when obtained from whole foods. However, if you wish to take a multi-vitamin/mineral (MVI) supplement, choose wisely.
Vitamin D and Calcium
In most cases, you shouldn’t rely on your MVI dietary supplement to meet your needs for calcium and vitamin D. There isn’t enough room in the pill itself for the calcium required for most Americans. Choose a calcium + vitamin D supplement and take it separate from a multi-vitamin. The recommended dosage is at least 1,000 mg calcium and 400 I.U. vitamin D but most research has indicated that the vitamin D recommendation may be too low, especially if you do not get adequate sun (UVB) exposure; about 15 minutes per day of direct sunlight.
Vitamin A and Iron
Vitamin A intakes in the elderly are generally below the current standard of 800 – 1,000μg per day. Despite these low intakes, liver stores of vitamin A are well preserved with advancing age so supplementation would be more detrimental in elderly persons than in younger persons because of a diminished ability to clear this vitamin from the body, leading to potential toxicity (hypervitaminosis A). Nowadays, the majority of the vitamin A in most MVIs is in the form of beta-carotene (about 75% of the vitamin A), a vitamin A precursor found in abundance in your orange and dark green veggies and some fruits. In addition, MVIs designed for this age typically contain little or no iron as this mineral can be stored in the liver. Iron overload is known clincally as hemochromatosis.
