Danica McKellar spills secrets to ageless beauty

"The Wonder Years" star Danica McKellar, now 48, reveals her secret to maintaining her youthful appearance is a clean and simple lifestyle. She avoids alcohol, coffee, unhealthy food, sugar, gluten, and dairy, opting for clean cuts of meat instead. While she occasionally indulges, she finds that sticking to a clean diet and exercising consistently makes her feel better. McKellar emphasizes the importance of how she feels as she gets older and believes in giving back to the world. She supports her son's interests and advises others to enjoy the journey and work hard even when no one's watching.