If you want to be more like Gwyneth Paltrow, you can start by reading her newsletter GOOP, which is brimming with personal tidbits on how to live well. But truly living like Gwyneth may require more self-discipline than you originally bargained for. Hell, it takes an army of elves living in you to look half as put together as she always does.

The actress recently "gooped" about Dr. Alejandra Junger's Clean program, a cleanse that she says has given her great results in the past. Gwyneth writes, "It is really just the thing if you are in need of a good detox--wanting some mental clarity and to drop a few pounds." And, just think, you won't ever wake up hungover on this cleanse (what?...like you didn't try the beer cleanse in college).

Dr. Junger outlines three variations of her Clean program:

- Plan A, The Clean 21-Day Cleanse: For 21 days, you have a Clean Program shake for breakfast, lunch from a set list of approved foods (called the Elimination Diet, see below), another Clean Program shake for dinner, and supplements throughout the day. Dr. Junger says, "The cleanse focuses on changing habits and resetting the digestive track so foods that you find yourself craving begin to have very little appeal to you."

- Plan B, Clean 21-Day Elimination Diet: For 21 days, you eat three meals a day from the Elimination Diet, Dr. Junger's list of approved foods. Dr. Junger says this cleanse focuses on removing foods "that are known to cause food allergies, food sensitivities, and disruptions in the digestive process." Some approved foods include almond milk, brown rice, salmon, chicken, turkey, walnuts, cashews, raw or steamed veggies, water and green tea. Some no no foods include oranges, bananas, dairy, eggs, beef, pork, soybean products, peanuts, corn, tomatoes, butter, alcohol, soft drinks and sugar. Read the full lists here.

-Plan C, Clean Mini 3-Day Cleanse: For 3 days, you have one liquid meal for breakfast and two solid meals from Dr. Junger's list of approved recipes. Dr. Junger says this mini cleanse is good for a "slight reset" or "as a maintenance program for those that have first gone through Plan A or Plan B."

Before you jump on the Clean bandwagon with Gwyneth, a word of caution from our expert, Los Angeles internist Dr. Andrea Ruman: "Detox diets like the Clean program have little scientific evidence supporting their efficacy, and any research on their safety is scarce, at best. The body is perfectly capable of ridding itself of toxins through the liver, kidneys, lungs, and skin. Common side effects while on a detox diet include dehydration, dizziness, constipation and fatigue."

And as far as weight loss goes, detox diets can leave much to be desired. Dr. Ruman continues, "While people can lose weight rapidly on a detox diet unfortunately most people regain the weight once they revert back to their usual eating habits. Long-term weight loss is usually best accomplished by slow, steady weight loss (approximately 0.5 to 2 pounds weekly) coupled with regular exercise."

Just remember the old Garfield poster saying, "You are what you eat." So, if you cleanse for 21 days and then go back to fried chicken, milk shakes and Dr. Pepper (so good!), you're obvi going to get the muffin top back...not to mention a possible bout of the runs.