11 viral diets and the ones that actually work

These habits belong to some of the viral diets that celebrities from Beyoncé to Taylor Swift have sworn by.

Oddly enough, some of these eating plans contain nuggets of wisdom that could help you lose weight. Still, the bigger danger with any diet is that it sets us up for unhealthy habits we can't maintain, says Andy Bellatti, a registered dietitian and the cofounder of Dietitians for Professional Integrity.

"I know many people who’ve gone on some kind of crash diet for a week and lose a bunch of weight and a few months later they’re back to square one."

With that in mind, here's the dirt on the strangest viral diets along with some science-backed wisdom about what actually works if you want to lose weight and keep it off.

The Alkaline Diet

The hype: Actresses including Jennifer Aniston, Kirsten Dunst, and Gwyneth Paltrow, have all reportedly done the pH or "Alkaline" diet, which advocates swapping

The truth: The diet is based on the misleading idea that you

The Master Cleanse

The hype: Beyoncé reportedly used the Master Cleanse to slim down before the movie "Dreamgirls." The cleanse involves drinking a lemon juice-based mixture to allegedly clean out the system and speed weight loss.

The truth: Any diet that's based around the idea of detoxing is probably bogus, since our bodies naturally detoxify themselves.

The Paleo Diet

The hype: Singer Tim McGraw sticks to a paleo diet, a meal plan free of dairy, legumes, refined sugar, alcohol, and grains.

The truth: The US News and World Report ranks the paleo diet 36 out of 38 diets, saying that it can be tough to follow and is somewhat "nutritionally in

The Ketogenic Diet

The hype: Slashing carbohydrates from your diet will force your body to burn fat, and celebrities including Adriana Lima, Megan Fox, and Mick Jagger are supposedly doing it.

The truth: First developed

The Baby Food Diet

The hype: The Baby Food Diet, which involves eating 14 jars of baby food with the option of adding in one low-calorie has been traced to celebrity trainer Tracy Anderson, who's since denied supporting it. C

The Cookie Diet

The hype: Snooki reportedly lost weight in 2010 with a diet based on special cookies created by Sanford Siegal, who calls himself "The Cookie Doctor." The three-week plan involves eating six of the

The truth: Like the Baby Food Diet, the reason the Cookie Diet could be linked with weight loss is because of calorie restriction — all of those cookies only add up to 540 calories, about the equivalent of a single meal. A look at the ingredients in Siegal's "cookies" (wheat bran, beef protein, egg whites) also suggest they're more of a high-protein, high-fiber snack than anything else.

The 'Nourish and Glow' Diet

The hype: Shortly after singer Sam Smith took home four top awards at the Grammys in February, he started shedding pounds, crediting his transformation to nutritional therapist Amelia Freer and her "Nourish and Glow" 10-day plan. Freer also had him exercising regularly and eating lots of fresh veggies, fruit, lean meats, and some seafood while abstaining from pastries and ice cream.

The truth: There's nothing about the plan that's outright unhealthy. If you can keep up the habits you start with in the 10 days on the plan, it might work for you.

The Mushroom Diet

The hype: Singer Katy Perry claims the "M Diet," which involves swapping a meal with raw mushrooms for two weeks, helps her get lean only in select areas of her body, namely her waist, hips, and thighs.

The truth:

Veganism

The hype: The day before his 44th birthday, artist Jay Z joined partner Beyoncé in a 22-day "vegan challenge." Now, both stars are Marco Borges, called 22 Days Nutrition.

The truth: As with any eating plan, if you can stick with the lifestyle changes it advises for a long time, it might be worth a shot. Experts also advise people transitioning to a vegan diet to replace meat and dairy with foods that have a similar nutritional profile, like tofu, beans, and dark, leafy greens to ward off nutrient deficiencies. Also, instead of Bey and Jay Z's plan, which costs about $600 for 22 days, you might want to simply try going vegan with a friend.

The Color Diet

The hype: Singer Christina Aguilera reportedly went on

The truth:Different-colored foods do often provide different nutrients, so the temporary plan might help encourage you to try new things that you might otherwise ignore, from purple yams to emerald green kale. If you start by eating one color of fruits and veggies every day, you can establish a healthy habit of

The 5-Factor Diet

The hype: Hollywood fitness trainer Harley Pasternak is the author of the New York Times best seller " target="_blank"The 5-Factor Diet," which encourages people to eat five 5-ingredient meals per day, each of which allegedly take just five minutes to prep.

The truth: The plan, more of a lifestyle and less of a temporary "fix-it" diet, is based around the idea that each of your meals contains one of each of four main food groups: protein, complex carbs, fiber, and healthy fats. The fifth group is water or other sugar-free drinks.