Dive Summary:

• The FDA has issued a letter warning consumers about the potential health risks of Best Share Green Coffee: Brazilian Slimming Coffee, as it has been found to contain sibutramine, a substance with serious health side effects.
• Sibutrimine was once sold in the U.S. as an obesity drug, however serious cardiovascular ramifications were associated with the weight loss, including hardened arteries and cardiac arrest. 
• Critics are wondering why the FDA hasn't pulled the product from shelves yet, as a letter of warning does little to protect their citizens.

From the article:

“The product poses a threat to consumers because sibutramine is known to substantially increase blood pressure and/or pulse rate in some patients, and may present a significant risk for patients with a history of coronary artery disease, congestive heart failure, arrhythmias, or stroke,” said the FDA.

“Consumers should stop using this product immediately and throw it away. Consumers who have experienced any negative side effects should consult a healthcare professional as soon as possible,” the agency added.