I believe the science of telomeres offers the most exciting and viable possibility for extreme life extension—the kind of anti-aging strategy that can actually allow you to regenerate and in effect “grow younger.” Naturally, researchers are hard at work devising pharmaceutical strategies to accomplish this, but there’s solid evidence that simple lifestyle strategies and nutritional intervention can do this too. This is great news, as short telomeres are a risk factor not just for death itself, but for many diseases as well.
For example, telomere shortening has been linked to the diseases listed below. But animal studies have also shown that these types of health problems can be reversed by restoring telomerase functioning:
- Decreased immune response against infections
- Type 2 diabetes
- Atherosclerotic lesions
- Neurodegenerative diseases
- Testicular, splenic, intestinal atrophy
- DNA damage
One Way Nutrition Affects Longevity
For example, in one recent studyi, scientists found that the B vitamin folate plays an important part in maintenance of DNA integrity and DNA methylation, which in turn influences telomere length.
Researchers also found that women who use vitamin B12 supplements have longer telomeres than those who don’t. Vitamin D3, zinc, iron, omega-3 fatty acids, and vitamins C and E also influence telomere length. This supports the findings of an earlier study from 2009, which provided the first epidemiologic evidence that the use of multivitamins by women is associated with longer telomeres.ii According to the authors:
“Compared with nonusers, the relative telomere length of leukocyte DNA was on average 5.1% longer among daily multivitamin users. In the analysis of micronutrients, higher intakes of vitamins C and E from foods were each associated with longer telomeres, even after adjustment for multivitamin use.”
The mechanism by which nutrients appear to affect telomere length is by influencing the activity of telomerase, an enzyme that adds the telomeric repeats to the ends of your DNA. Thousands of studies have been published on telomerase, and they are well-known to maintain genomic stability, prevent the inappropriate activation of DNA damage pathways, and regulate cellular aging.
In 1984, Elizabeth Blackburn PhD, professor of biochemistry and biophysics at UCSF, discovered that the enzyme telomerase actually has the ability to lengthen the telomere by synthesizing DNA from an RNA primer. She, along with Carol Greider and Jack Szostak were jointly awarded the Nobel Prize in Physiology or Medicine in 2009 “for the discovery of how chromosomes are protected by telomeres and the enzyme telomerase.”
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