Kim and Khloe Kardashian may be facing a class action lawsuit over their endorsed diet product QuickTrim.

The product by New Jersey based Windmill Health Products features the Kardashian sisters in bikinis. Since the 2009 deal, New York Post reports that QuickTrim has reportedly made $45 million in revenue. According to the QuickTrim international website, QuickTrim is a revolutionary cutting edge line of advanced weight loss, fat burning and detoxifying products.

Kim Kardashian said in January 2010 that she used the QuickTrim diet product to lose 15 pounds in a few weeks. She also claimed to use the product before her wedding. The New York Post also reports that Khloe Kardashian has claimed to lose 15 pounds while using QuickTrim.

The lawsuit is being filed by law firm, Bursor & Fisher, against Windmill and the claims made by the Kardashian's. An e-mail was sent to users of the diet product by the law firm. The e-mail stated The active ingredient in QuickTrim weight loss products is a large dose of caffeine...The FDA has determined that caffeine is not safe or effective for weight loss.

Scott A. Bursor of Bursor & Fisher told the New York Post that his firm had been retained by a QuickTrim customer. We have provided written notice of our client's claims to the company and others involved in marketing QuickTrim.

The QuickTrim products are designed to detoxify and clean the body. The diet product ranges from pills to powdered drinks. US News reported in October 2011 that cleanses may actually cause a risk to your health. A study found in the Journal of Family Practice in August of 2011 highlighted that colon cleanses caused anything from mild cramping to kidney failure.

The FDA does not approve dietary supplements, but instead oversees the industry. Regulations by the FDA on the ingredients within the product do exist though.

The QuickTrim website does discuss the amount of caffeine found in some of their products in their FAQ section. According to the site, the Extreme Burn QuickTrim product, as well as the Iso-Burn from the Burn & Cleanse kit contain about as much caffeine as two cups (12-16 oz) of caffeine.

According to the New York Times, Caffeine is found in some soft drinks, certain teas, chocolate, and coffee. An overdose of caffeine can occur when their is an accidental or intentional ingestion of more than the normal/recommended amount of caffeine.

Symptoms of a caffeine overdose in adults can include trouble with breathing, confusion, vomiting, increased urination, rapid or irregular heartbeat, muscle twitching, dizziness, hallucinations and more. The National Library of Medicine states that in severe cases it is possible to die from caffeine overdose related symptoms like irregular heartbeat or convulsion.

Once at the emergency room for caffeine poisoning, the patient may receive activated charcoal, laxatives, or a tube inserted through the nose and into the stomach. The tube is meant to wash out the stomach.