Celebrity Diet Secrets Spilled

How do they get so skinny? We share it all -- from the healthy to the omg-scary

jessica simpson weight loss, weight gain

Jessica Simpson fights to get in shape

Jessica Simpson’s weight has run the gamut and it seems like the tabloids are just waiting to see if she’s going to gain or lose a few pounds. It’s hard to say what impact it’s having, but Simpson claims her latest exercise routine is boxing. (Source: Us Magazine)

Reality Check: Boxing can be a great form of exercise, but no matter what you do, it’s important to keep it up. However, Ferrin does have a tip to get more bang for your buck with workouts: “The best time of day to workout is early morning, before breakfast.” He says this time of day works best with your hormones and insulin levels to attack fat and build muscle. Score!