In the beginning, Jennifer was an ambassador for Weight Watchers, one of the most famous national organizations dedicated to helping people achieve their goal weight and feel better about themselves without emphasizing negativity. In 2011, she told Self magazine she was participating in harmful food restrictions that just made her stressed. Weight Watchers was a solution that worked.

Early on in her career, she explained that her reason for wanting to lose weight stemmed from her pregnancy. She explained it wasn't so much about the loss as just feeling good, no matter if that was a size 0 or a 16. This was around the time she signed on to be a spokeswoman for the brand.

The same year, Jennifer spoke to Ellen about her transformation, stating again, "I just wanted my body back. Whatever body that was." The emphasis on weight loss for herself and not due to the pressures of diet culture was one of many reasons Weight Watchers chose her for their ambassador.