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There is no Wikipedia page dedicated to telomeres and nutrition. I plan on starting one with these three studies. I will cite the paper below because the paper proposes that telomeres were evolved to prevent oxidative damage to DNA tails.

Bridget J. Jennings, Susan E. Ozanne, C.Nicholas Hales, Nutrition, Oxidative Damage, Telomere Shortening, and Cellular Senescence: Individual or Connected Agents of Aging?, Molecular Genetics and Metabolism, Volume 71, Issues 1–2, September 2000, Pages 32-42, ISSN 1096-7192, http://dx.doi.org/10.1006/mgme.2000.3077. (http://www.sciencedirect.com/science/article/pii/S1096719200930774)

I will cite this next paper because they studied telomere shorting due to high blood glucose levels as related to cardiovascular disease and diabetes.

Salpea KD, Maubaret CG, Kathagen A, Ken-Dror G, Gilroy DW, et al. (2013) The Effect of Pro-Inflammatory Conditioning and/or High Glucose on Telomere Shortening of Aging Fibroblasts. PLoS ONE 8(9): e73756. doi:10.1371/journal.pone.0073756

Finally I will cite this paper that proposes telomere shortening due to oxidative stress.

SARETZKI, G. and VON ZGLINICKI, T. (2002), Replicative Aging, Telomeres, and Oxidative Stress. Annals of the New York Academy of Sciences, 959: 24–29. doi: 10.1111/j.1749-6632.2002.tb02079.x

I will cite this paper to relate DNA/ telomere damage to nutrition. Fenech, M. F. "Nutriomes and Personalised Nutrition for DNA Damage Prevention, Telomere Integrity Maintenance and Cancer Growth Control." Cancer Treatment and Research 159 (n.d.): 427-41. Print.

Nutrition
Nutrition causes oxidative stress which is correlated to telomere shortening. This shortening then causes cellular senescence. Further, it has been shown that high blood glucose levels, as caused by cardiovascular disease and diabetes, shorten telomeres. It has been discussed that it may be possible to identify the optimal nutrition to control DNA damage and cancer growth. Such a diet would provide the micronutrients necessary to prevent DNA damage. Thus dietary restrictions and/or supplements that control specific cancers could be identified. Given the DNA damage theory of aging it is possible that reduction of oxidative stress through nutrition could counteract ageing by reducing DNA damage.