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Veganism, aging and longevity: new insight into old concepts
Kristina Norman1,2,3, Susanne Klaus3,4
1Department of Nutrition and Gerontology, German Institute for Human Nutrition Potsdam-Rehbrücke, Nuthetal.
Current Opinion in Clinical Nutrition and Metabolic Care
|January 3, 2020
Summary
Vegan diets promote better health and longevity, with potential life-extending mechanisms like protein restriction. However, mortality rates are similar to vegetarians, and vegan diets require supplementation for specific groups.
Area of Science:
- Nutritional Science
- Longevity Research
- Public Health
Background:
- Plant-based diets are linked to improved health and longevity.
- Veganism, a strict form of vegetarianism, is gaining attention.
- This review examines mortality and health-span in vegans and vegetarians.
Purpose of the Study:
- To review studies on mortality and health-span in vegans and vegetarians.
- To discuss potential longevity-enhancing mechanisms of veganism.
- To assess the impact of vegan diets on health and life-span.
Main Methods:
- Review of epidemiological studies on vegan and vegetarian diets.
- Analysis of research on health markers such as disease rates and mortality.
- Investigation of potential mechanisms including protein restriction and gut microbiota.
Main Results:
- Vegan diets are associated with lower rates of cancer and cardiovascular disease.
- Mortality rates in vegans are comparable to vegetarians and occasional meat-eaters.
- Veganism may enhance life-span through mechanisms like protein/amino acid restriction and improved insulin resistance.
Conclusions:
- Plant-based diets improve health but not necessarily mortality.
- Mechanisms of vegan diet health promotion are multifactorial and not fully understood.
- Dietary quality and reasons for veganism are crucial factors in longevity studies.
