An image for Beyonce

Celebs sometimes resort to crazy dieting ways to keep up their bodies or prepare for roles. Here are some of them.

In the entertainment world we get to see a lot of body transformations and then we have the weird diets behind their weight fluctuations.

In User's Guide to Cheating Death we see controversial procedures and diets that have taken modern-day society. The series also explores revived ancient therapies that are being sought by those who are desperate to dramatically alter their bodies or radically improve their health.

Read more:

- Healthy viewing habits

- 6 celebs who've survived against the odds 

Health law professor and writer Timothy Caulfield dives deep into these health trends to distinguish between the genuinely beneficial advice and the excess of high-priced placebos. Watch it Mondays at 20:30 on BBC Earth

I mean we’ve all heard of Beyoncé's diet of water, lemon juice, maple syrup and cayenne pepper which is inspired by Stanley Burroughs The Master Cleanse. I really don’t know how you can survive a day by just drinking that concoction but hey King Bey can right. Apart from weight loss it apparently also helps with energy levels. 

When Dwayne "The Rock" Johnson was getting ready to play Hercules he took on the Demi God Diet which involved eating 7 times a day, for 22 weeks. 

Dwayne Johnson

His diet consisted of weighed egg whites, filet mignon, chicken, fish, oatmeal, broccoli, asparagus, a baked potato, cream of rice, salad and complex carbs. He paired the diet with a hectic workout schedule. 

The Baby Food Diet has been tried by celebs like Jennifer Aniston, Gwyneth Paltrow and Lady Gaga. This diet means that you purée fruit and veggies like peas and carrots and eat that instead of regular meals. Celebrity trainer Tracy Anderson kind of endorsed the baby food cleanse which claims to eliminate toxicity and gets your digestive system going. 

Jersey Shore's Snookie's Cookie Diet is also one for the books. She would eat six cookies a day and then have a protein like fish or chicken for dinner. These cookies came in a variety of flavours like blueberries and banana amongst others. 

The Raw food diet which as the name suggests consists of uncooked veggies, fruits, nuts and grains has been tried out by a few celebs like Megan Fox, Amanda Seyfried, Demi Moore and Scarlett Johansson amongst others. Some say it's a great way to cleanse the body and you'll get nutrients that are lost due to cooking. However others don't agree and believe it leaves room for sickness and leaves you under nourished.