This study looked at 2 age groups; 55 to 65 (725 people) and 65 to 88 (1237 people). The idea was that since vitamin D is directly connected to muscle health, would the resulting decrease in muscle affect people’s ability to do normal things like; dressing, walking up or down stairs, cutting their toenails, standing from a sitting position, driving their car, or walking for 5 minutes.
After factoring for things like age, physical activity, and chronic disease, they looked at two vitamin D subgroups… those with vitamin D blood serum levels <20 ng/ml (deficient) and >30 ng/ml. The vitamin D deficient folks from both age groups had significantly greater number of physical limitations after the follow-up period (3 years for the older group and 6 years for the younger group).
It’s very common for people, especially the further north you live, to be under 20 ng/ml. Even if you are taking a vitamin D supplement, you should be tested.
Americans are always searching for the next nutrition secret and the benefits of the Mediterranean Diet have come under close scrutiny. Perhaps the intriguing moniker and thoughts of far away lands started the curiosity. Looking at many popular supplements and recent nutrition fads, anything that is from foreign gains popularity and reigns supreme for many months. News coverage, magazines, and books frequently tout the latest secret that will be revealed. Why do the French have less disease? What grows in the Amazon that we are missing? And of course, what are the specifics of the Mediterranean lifestyle that lead to their healthier life free from many of the diseases that plague us? This diet has been making headlines for a while and all reports point to the increased consumption of fruits, vegetables, and healthy sources of fat. It is thought that increasing the amount of these kinds of foods benefits the body because they are very nutrient dense and have essential components for our body. Scientists have been searching for the reason that this diet seems to extend longevity and the quality of life during those extra years.
Scientist may be one step closer to discovering the fountain of youth, and the key may be resveratrol. In an interview 1 on March 23, 2009, Dr. Mehmet Oz speaks of the ability of a person to live a longer healthier life. The body's adaptive response to insufficient calories may be to extend the life of the individual in an effort to extend the survival of the species. A decrease in calories may mean an inability to reproduce and in response the body extends the longevity of the affected individual. Cutting back as little as 15% of the calories ingested (ie decreasing from 2000 calories to 1700) may be enough to trigger this response. The idea is to cut back on empty calories that provide little or no nutrients. Opting out of sodas, donuts, and sugary snacks can make this cut back a reality. In addition to the above, Dr. Oz brings to light the possibility of tissue regeneration, organ rebuilding, and new artery development. All of these medical advances will permit the healthy extension of one's life.
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