Until then, what we do know is this: there are certain supplements—multivitamins, omega 3 fatty acids, vitamin D, green tea extract—that are associated with longer telomere length. And while it is still too soon to know if these supplements actually promote telomerase activity, we do know that individuals who consume these supplements have longer telomeres.
Are you taking a multivitamin?
Investigators from the US National Institute of Environmental Health Sciences and the University of Utah have determined that multivitamin use is associated with longer telomeres in women. This examination is the first epidemiologic link between multivitamin consumption and longer telomeres.
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In a paper published in the June, 2009 edition of the American Journal of Clinical Nutrition, the researchers looked at regular multivitamin users in their cohort of 586 women aged between 35 and 74. They found that on average, daily multivitamin users had 5.1% longer telomeres than nonusers.3 The findings also corroborated other studies that vitamins C and E may protect telomeres in vitro.4
Omega 3 fatty acids and telomere length
Remember Nobel Prize winner Elizabeth Blackburn? She recently published, along with her colleagues at the Univerisity of California, San Francisco, a study that showed intakes of the omega 3 fatty acids DHA (docosahexaenoic acid) and EPA (eicosapentaenoic acid) protect telomere length in people with cardiovascular disease.
The study, which was published in the January, 2010 edition of the Journal of American Medical Association, looked at telomere length in blood cells of 608 outpatients with stable coronary artery disease. The length of telomeres was measured at the start of the study and again after 5 years.
The researchers compared levels of omega-3 fatty acids EPA and DHA with subsequent change in telomere length. The researchers found that individuals with the lowest average levels of DHA and EPA experienced the most rapid rate of telomere shortening, while people with the highest average blood levels experienced the slowest rate of telomere shortening.5
Green tea and telomere length
An association between green tea drinkers and longer telomeres was reported by scientists from the Chinese University of Hong Kong last year. In a study published in the British Journal of Nutrition, the researchers said that telomeres of people who drank an average of three cups of tea per day were about 0.46 kilobases longer than people who drank an average of a quarter of a cup a day.6
This average difference in the telomere length corresponds to “approximately a difference of five years of life,” wrote the scientists, led by Ruth Chan.
Vitamin D and telomere length
Vitamin D supplementation has also been associated with protecting the length of telomeres. In a study by researchers from the London School of Medicine, serum vitamin D concentrations were measured in 2,160 women, aged 18 – 79 years (mean age: 49.4), from a large population-based cohort of twins.
The scientists found that higher serum vitamin D concentrations were significantly associated with longer telomeres, and that the difference in telomere length between the highest and lowest levels of vitamin D was highly significant and equivalent to five years of aging. The authors concluded that higher vitamin D levels, easily modifiable through nutritional supplementation, were associated with longer telomere length.7
The future of telomere and telomerase research
As stated before, many scientists are looking for ways to promote the production of telomerase in healthy cells in an effort to extend telomere length and slow down cellular aging. Their research already suggests nutritional supplementation with multivitamins and omega-3 fatty acids can have a positive effect on telomere length, and future research promises to reveal other nutritional factors that may very well promote telomerase production and protect telomere length.
In the meantime, adding supplements to your diet that are associated with longer telomere length, whether or not they promote the production of the enzyme telomerase, seems like a good anti-aging idea.
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These articles are not intended to diagnose, treat, cure, or prevent any disease. Always consult with a physician before embarking on a dietary supplement program.
Rodier F, Kim SH, Nijjar T, et al. Cancer and aging: the importance of telomeres in genome maintenance. Int J Biochem Cell Biol. 2005; 37: 977–90.
“Shay/Wright Laboratory” The University of Texas Southwestern Medical Center at Dallas. (www.swmed.edu/)
Xu Q. Parks CG. DeRoo LA. Cawthon RM. Sandler DP, Chen H. Multivitamin use and telomere length in women. Am J Clin Nutr 2009: 89(6):1857-1863.
Saretzki G, Von Zglinicki T. Replicative aging, telomeres, and oxidative stress. Ann NY Acad Sci. 2002 Apr: 959:24-9.
Farzaneh-Fqar R, Lin J, Epel ES, Harris WS, Blackburn EH, Whooley MA. Association of marine omega-3 fatty acid levels with telomeric aging in patients with coronary heart disease. JAMA 2010 Jan 20;303(3):250-7.
Chjan R, Woo J, Suen E, Leung, Tang N. Chinese tea consumption is associated with longer telomere length in elderly Chinese men. Br. J Nutr. 2010 Jan;103(1):107-13. Epub 2009 Aug 12.
Richard JB, Valdes AM, et al. Higher serum vitamin D concentrations are associated with longer leukocyte telomere length in women. Am J Clin Nutr: 2007 Nov;86(5):1420-5.