Josh Mankiewicz of 'Dateline' lost 70 pounds in a year and a half with regular exercise and diet changes. Here's everything he's shared about his weight loss.

Dateline’ correspondent Josh Mankiewicz, 69, opens up to PEOPLE about how he achieved his 70-lb. weight loss and how he was proud to “do it just on willpower.”

I'm glad that I was able to do it just on willpower,” the 'Dateline' correspondent tells PEOPLE of his weight loss journey

Josh Mankiewicz, 69, shared how he lost 70 pounds after rebound weight gain from yo-yo dieting. He also shared his thoughts on weight loss drugs like Ozempic.

Dateline correspondent Josh Mankiewicz has been opening up about his weight loss journey, revealing how cutting carbs and riding his Peloton helped him shed 70 pounds.

While more and more celebrities are coming forward to share their experiences with weight loss drugs like Ozempic, Dateline correspondent Josh Mankiewicz says he recently dropped 70 pounds without the aid of medication.