There is no set formula to determine how different people will react to caffeine intake, but researchers say that genes as well as environmental factors -- such as the use of some medications -- may increase sensitivity to the ingredient.
Winn-Dixie is not concerned about the competition from Publix, which is adding 49 new stores, according to a statement released Thursday. Winn-Dixie CEO Peter Lynch cited the company's newly remodeled stores and the distance between stores as reasons the deal wouldn't have long-term effects on his business.
Lawmakers approved subpoenas for nine food-testing companies this week as concern grows over the recent salmonella outbreak. The same lawmakers say they are frustrated that the FDA has not yet found the source of the problem.
Winn-Dixie stores in the Jacksonville, Fla., region are trying out $1-a-day DVD rental kiosks, the Jacksonville Business Journal reports. Publix Super Markets is testing the same machines, offered by Redbox Automated Retail, at Miami-area locations.
Royal Ahold NV and Redbox Automated Retail LLC have reached a deal that will soon allow shoppers to rent DVD's at Stop & Shop and Giant Food stores. Redbox says it will install rental booths beginning in March and hopes to have them in 80% of the supermarkets locations by year's end.