You might not have to ring in your 100th birthday with a dairy-free, egg-free cake
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A recent study in China has shed light on the dietary habits of centenarians, challenging the notion that a plant-based diet is the key to longevity. Contrary to popular belief, most Chinese centenarians consume meat in their diets, which may have particular benefits for those who are underweight.
Meat is known to be a rich source of certain amino acids that impact the mTOR signalling molecule, which plays a role in the aging process. While reducing meat intake has been associated with longevity and a lower risk of conditions like heart disease, plant-based diets have been linked to an increased risk of fractures and malnutrition.
According to Kaiyue Wang from Fudan University in Shanghai, older individuals, especially those with weaker bones, may benefit from a diet that includes meat. Wang and her team analyzed data from a Chinese health database to explore the connection between diet and longevity among individuals over 65 years old.
The study focused on 5203 participants who were at least 80 years old in 1998 and free of major health conditions. The research revealed that meat-eaters were more likely to reach 100 compared to vegetarians, pescatarians, and vegans, especially when considering body weight.
Among vegetarians with a body mass index below 18.5 (indicating underweight), 24% reached the age of 100, while nearly 30% of underweight meat-eaters achieved the same milestone, with higher odds for those consuming meat daily. This trend was not observed among individuals with a higher body weight.
While excessive meat consumption has been linked to obesity, animal proteins are essential for building stronger muscles and bones, particularly beneficial for underweight individuals, as highlighted by Wang.
However, the study also emphasized the importance of consuming ample vegetables, as participants who reported daily vegetable intake generally had higher longevity rates.
James Webster from the University of Oxford cautions against making drastic dietary changes based on this study alone. He notes that both vegetarian and meat-based diets can be healthy or unhealthy depending on nutritional quality. Webster emphasizes the significance of a balanced diet rich in whole grains, fruits, and vegetables while limiting salt, sugar, and saturated fats.
While the findings may not be universally applicable due to varying dietary patterns worldwide, the study underscores the importance of understanding the relationship between diet and aging. As more evidence is gathered, a holistic approach to dietary choices is recommended for promoting overall health and longevity.
