This guide highlights and summarizes research about the impact of what we eat has on telomere length and aging. Some studies focus on specific nutrients, such as Vitamin B12, or foods, such as salmon (and other oily fish). Others focus on categories of foods, such as high antioxidant foods (eg, blueberries), or dietary approaches, such as the Mediterranean diet. No surprises here – many of the foods documented to have a positive impact on telomere length are commonly recommended as good, healthy choices with other documented health benefits. However, the data summarized here will help you look at eating well through an anti-aging lens.