Survey findings on diet and longevity

A survey of 5,203 people aged 80 and older found that those who consume meat have a higher chance of becoming centenarians than those who do not. The difference was especially noticeable among strict vegetarians who were underweight.

Vegetarian subgroups and longevity

Vegetarians who still consumed proteins such as eggs and dairy products had a higher chance of living longer than those who did not. This suggests that the type of vegetarian diet may influence longevity outcomes.

Aging population and health challenges

Living longer has become more common due to advances in medical services and improved living conditions. The global population is aging, with the number of people aged 80 and older expected to triple between 2020 and 2050, reaching 426 million.

Focus on healthy longevity

Healthy longevity has become one of the main public health challenges. Prevention strategies include lifestyle changes such as physical exercise, stress-reducing activities like meditation, and a healthy, balanced diet.

Vegetarian diet and health risks

The vegetarian diet has generated increasing interest in the context of aging. While several studies have linked it to a lower risk of cardiovascular diseases, diabetes, and obesity, others have noted potential health risks such as fractures and nutritional deficiencies.

Uncertainty about vegetarian diets in the elderly

The advantages and disadvantages of the vegetarian diet have mainly been studied in middle-aged adults. Its potential influence on the longevity of people aged 80 and older, who are particularly vulnerable to fractures and malnutrition, remains uncertain.

Study on vegetarianism and centenarians

A study published in The American Journal of Clinical Nutrition examines the link between the vegetarian diet and the probability of reaching 100 years of age among the elderly. Researchers note that while inverse correlations between vegetarian diets and morbidity and mortality have been observed, the role of the vegetarian diet on exceptional longevity remains unclear.

Paradox between body weight and longevity

The researchers analyzed data from 5,203 elderly people, including 1,459 centenarians and 3,744 people who died before reaching the age of 100. These data come from the Chinese Longitudinal Healthy Longevity Survey, one of the largest geriatric studies in the world.

Dietary subgroups and BMI

Participants were divided into omnivores and vegetarians, with vegetarians further divided into pescovegetarians, lactovegetarians, and vegans. The main evaluation criterion was reaching the age of 100 by 2018.

Meat consumption and underweight individuals

The results showed that among participants who were underweight, omnivores had a higher probability of reaching 100 than vegetarians. This difference was not statistically significant among vegetarians with a normal or higher BMI.

Statistical association and caution

The researchers found that daily meat consumption was associated with a 44% higher probability of reaching 100 years of age in the underweight group compared to a vegetarian diet. However, this association was not present in those with a normal or overweight BMI.

No significant difference for some vegetarian groups

Pescovegetarians and lactovegetarians did not show a statistically significant difference compared to omnivores in terms of the probability of reaching 100. However, this does not mean their chances were identical.

Study limitations and observational nature

The study has limitations, including the lack of data on changes in participants' eating habits over time. These changes could affect the foods consumed, particularly in the last years of life.

Recommendations for balanced diets

The researchers suggest that a balanced diet combining animal and plant-based foods could be relevant for very elderly people. Additional studies focused on this population are needed to develop appropriate dietary recommendations.