Chinese researchers found that women with low body weight who eat meat daily have a 44% higher chance of reaching 100 years.
Vegetarians who consume fish, eggs, or dairy also reached 100 as often as meat-eaters. The key is adequate protein and calorie intake.
Scientists recommend balanced nutrition but note there are no universal rules for all age groups.
A study of over 5,000 people aged 80+ in China showed that women who eat meat are more likely to reach 100 than vegetarians. No significant link was found for men.
Healthy lifestyle accounts for 70% of reaching 90. Elderly people need more protein than standard recommendations suggest.
