I lost 120 pounds on the keto diet. Here are my best tips, recipes

Suzanne Ryan weighed nearly 300 pounds when she decided to make a change.

Ryan, a mom from the San Francisco area, started following the ketogenic diet, a diet focused on foods high in fat and low in carbohydrates.

Five years later, Ryan, who documents her weight loss journey online, has lost 120 pounds and transformed not just her body but her life.

Ryan is the author of a new book "Beyond Simply Keto." In it, she shares not only keto-friendly recipes but also how she was able mentally to achieve such a major weight-loss goal.

Read the full article from GMA.