Federal health regulators have issued warnings to the makers of Canada Dry ginger ale and Lipton tea for making unsubstantiated nutritional claims about their green tea-flavored beverages.

In a warning letter issued Aug. 30, the Food and Drug Administration takes issue with the labeling of Canada Dry Sparkling Green Tea Ginger Ale. The agency issued a similar letter Aug. 23 to Unilever Inc., over Web site and product labeling for its Lipton Green Tea. Get the full story »