That influence may even extend to her personal trainer, Bob Greene, whose "Best Life" program endorses consumer products that promote healthy living.
According to a recent Nielsen report, products featuring Greene's "Best Life" seal of approval on their packaging easily outsold traditional food and beverage products.
In 2008, brands endorsed by "Best Life" generated a 9.2% dollar sales increase, year-over-year, while all food and beverage products increased by just 4.6% during the same time period.
During the most recent five-year period, "Best Life" brands also outperformed other brands. Dollar sales of "Best Life" brands grew by 30% during the time period, while sales of all food and beverage products increased by just 13%.
View the full report.