Carrie Underwood maintains her health and energy through the 45-30-25 diet, emphasizing balanced macronutrients and a primarily plant-based approach.

There are some surprising impacts of cutting out meat, even for a short period, which can carry on well beyond the end of abstinence.

A plant-based diet and a life with purpose are at the core of conservationist Jane Goodall’s mantra to keeping fit at 90. A vegan diet keeps her active and alert as she travels about 300 days a year.