Legendary nature presenter Sir David Attenborough has previously said he'd love to reach his 100th birthday, which is just a few days away. The broadcasting icon credits part of his well-being and energy to a simple dietary choice that could help more people stay healthy for longer. While not a complete vegetarian, it's well documented that Sir David has cut out red meat consumption, a decision he suspects may be extending his life. This shift in habits isn't new - Attenborough spoke openly