Want to live a long, healthy life? Eat more nuts, whole grains, and legumes – and less red meat

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Healthy food groups. Protein
Healthy food groups. Protein

What you eat can have a big impact on how healthy you are and how long you live, and for decades, researchers have been studying the impact of our food choices on these variables.

One diet in particular, the "longevity diet", has become well known as the key to extending the human lifespan. 

According to a new review that combed through a range of studies, there's no single special longevity diet that you should follow. Instead, you should focus on a set of fundamental principles associated with a healthier life and extended lifespan.

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