The Norman Transcript

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December 4, 2012

Vitamin B12 helps maintain good health

NORMAN — Take your vitamins. Generations of moms have faithfully preached this message to their children. Turns out, the advice holds true for grownups, too, and it is especially key for those 50 and older when it comes to vitamin B12.

Many people lose the ability to absorb naturally occurring vitamin B12 as they age and this may affect everything from our memory to our ability to walk. Often the culprit affecting absorption is atrophic gastritis, which causes stomach inflammation, bacterial overgrowth and decreased stomach acid.

Naturally occurring vitamin B12 occurs almost exclusively in animal foods, and significant sources of the vitamin include meat, poultry, fish, eggs, milk and milk products. The synthetic form of vitamin B12, which is found in fortified foods such as cereals or in dietary supplements, is easily absorbed with age. Janice Hermann, Oklahoma State University nutrition specialist explains how much is needed each day: The recommended daily vitamin B12 intake for adults and adolescents age 14 and above is 2.4 micrograms. Consider 1 cup of milk or one egg is the equivalent of approximately 1 microgram, 3 ounces of salmon or roast nets about 2 micrograms and 1 ounce of cheddar cheese or 3 ounces of chicken equals less than 1 microgram.

As long as you are including enough animal products in your diet, you should be getting plenty of vitamin B12. Most vitamin B12 deficiencies are due to poor absorption, rather than not getting enough in the diet, and that is a concern when it comes to older adults.

A vitamin B 12 deficiency could lead to irreversible nerve damage, which can affect a person’s balance and ability to walk. Not getting enough of the nutrient also can contribute to impaired cognitive function, resulting in confusion and mood changes. A lack of vitamin B12 has been linked to high levels of homocysteine in the blood, which is associated with increased risk of heart disease.

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