Meat Consumption May Aid Longevity in Older Women
Underweight women 80 and older who ate meat daily were 44% more likely to reach 100 in a recent study.
Updated on Oct. 28, 2026 in Vegetarian

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A study published in October 2026 suggests that underweight women aged 80 and older who consume meat daily are more likely to reach age 100 compared to those following vegetarian diets. This research analyzed data from the Chinese Longitudinal Healthy Longevity Survey, focusing on 1,459 centenarians.
Why it matters
Understanding the interplay between body weight and nutrient intake in advanced age is vital for preventing malnutrition. The findings highlight that maintaining sufficient calorie levels may be more important for longevity in this specific group than avoiding meat entirely.
In a study published in The American Journal of Clinical Nutrition, researchers compared dietary habits among 1,459 centenarians and 3,744 individuals in their 80s and 90s. While underweight women eating meat daily saw a 44 percent increased likelihood of reaching 100, the study's lifetime dietary impact remains unknown.
The players
The American Journal of Clinical Nutrition
A peer-reviewed academic publication that covers research on human nutrition and its effects on health.
Chinese Longitudinal Healthy Longevity Survey
A comprehensive, ongoing national study that tracks the health and lifestyles of older adults across China.
University of Wisconsin-Madison
A public research university that conducts studies on human biology, nutrition, and aging.
The details
The analysis suggests that body mass index acts as a mediator, as higher caloric and nutrient density found in meat can be beneficial for frail, underweight older adults. Notably, vegetarians who included fish, eggs, or dairy in their diets reached age 100 at rates similar to meat eaters. Researchers theorize that adequate nutrient intake is essential for maintaining health in very late life, though the study did not track long-term dietary changes across the lifespan.
Timeline
The study findings were published in October 2026.
A related review on protein intake was published by the University of Wisconsin-Madison in 2026.
Health Landscape
This study updates data from the Chinese Longitudinal Healthy Longevity Survey to refine our understanding of geriatric nutrition. It adds to the ongoing scientific discourse regarding how protein intake and body mass index interact to impact survival at the oldest ages.
If you are an older adult maintaining a lower body weight, it is worth discussing your specific nutritional needs and protein intake with your physician. This study reinforces the importance of monitoring calorie and nutrient density to ensure you are meeting your body's changing requirements in late life.
The takeaway
Maintaining adequate nutrient and caloric intake is a key factor for health as you reach your 80s and 90s. Consult your doctor or a registered dietitian to ensure your current eating pattern supports your specific health needs and body weight goals.
Further reading
For more on plant-based nutrition, visit Vegetarian.
Source note: This article includes information reported by Tribune Online.
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