The 2002 documentary Super Size Me dealt a devastating blow to junk food fans, and the fast food industry, in general. But it now appears that this documentary may have had a powerful impact on the diet industry, specifically cleansing diets.

The movie’s director, Morgan Spurlock, ate nothing but McDonalds’ meals three times a day, for an entire month. During this time, his health plummeted, including serious liver failure, mood swings, and excessive weight gain. But following the movie’s completion, Spurlock underwent a healthy, 14-month program of exercise, along with a purely vegan diet. This so-called “Detox Diet,” which was also the basis for a book written by Spurlock’s dietitian and girlfriend, has now drawn the attention of medical experts.  You see, the effectiveness of these cleansing diets has long been debated among medical professionals.

The Body’s Natural Detoxifying Abilities

The bottom line? No matter what plan you choose, it’s usually unhealthy to follow a dietary plan so restrictive. Studies show that these programs are typically missing key nutrients shown to be essential for optimal health. Additionally, quick weight loss may not be realized. Even such time-tested methods as taking laxatives will fail eventually. That’s because most of the weight lost is water, which is rapidly replaced.

Most healthcare professionals advise that healthy  livers and colons can provide the proper levels of detoxification in the human body. Therefore, enemas and other types of colon cleansers are unnecessary. However, patients with enlarged colons or those that are unable to fully cleanse themselves may benefit from these medications. Patients with chronic constipation preparing for colonoscopies may also need these cleansing products.

Regardless, physicians advise that following a healthy eating plan can successfully cleanse the body of food-based toxins. Dietitian Debbie Berg states: “If someone’s trying to get healthy, I would advise them first to go to more natural foods, whole grains, fruits and vegetables for 90 percent of their intake for about a week and see how they feel. They’ll get rid of a lot of salt, sugar, get processed foods out, and I think they can get just the same benefits [as a cleansing diet].”

When considering a cleansing diet, it’s important to proceed carefully. You should also discuss your plans with a physician or healthcare provider first. “Everything in moderation is good,” says Dr. Sherif Kaiser, head of the bariatric program at Winchester (NV) Medical Center. “You don’t want to start a diet when people are starving.” Dr. Kaiser goes on to state that reducing portion sizes and calories are more effective for weight loss.