It’s 2025 and it seems like we still can’t reach a consensus on which diet — vegan, keto, Mediterranean — is “the best.” Experts say part of the problem is that what qualifies as “the best” or even “healthiest” depends on your personal goals.

What’s the healthiest diet one can eat? A study claims to have finally found the answer. That’s not such an easy task, considering there are so many hyped diets out there. Chances are you know somebody who’s adopted a keto, paleo, pescatarian, or vegan diet in recent years—if that wasn’t you yourself.

Eating a more plant-based diet is linked to healthy aging, according to new research. Here's what you need to know and how to eat to boost longevity.