© Getty Images

Megan Fox - Coffee in the morning? No, thanks. This actress opts for a shot of apple cider vinegar instead.

© Getty Images

Victoria Beckham - The former Spice Girl swears by Japanese Geisha Facials, which contain bird waste.

© Getty Images

Reese Witherspoon - The Hollywood star is a fan of baby food. Yes, a diet consisting of baby food jars!

© Getty Images

Liv Tyler - Steven Tyler’s daughter swears by cold showers.

© Getty Images

Miranda Kerr - Kerr’s favorite superfood is coconut oil. The model eats a spoonful of it every day. But her biggest secret? Leech facials.

© Getty Images

Beyoncé -

The star is known to go vegan from time to time.

© Getty Images

Catherine Zeta-Jones - The secret to Zeta-Jones' Hollywood smile? Strawberries. Apparently, the malic acid in the fruit helps whiten the teeth.

© Getty Images

Eva Longoria -

The actress swears by skin creams containing placenta. Apparently it’s a great moisturizer and boosts collagen production.

© Getty Images

Teri Hatcher - Bathing in red wine? Apparently it is great for your skin, according to the 'Desperate Housewives' star.

© Getty Images

Gwyneth Paltrow - Paltrow is a fan of the elimination diet and has cut off red meat, gluten, and dairy from her diet.

© Getty Images

Madonna - The Queen of Pop goes on a liquid cleanse diet when it’s either a new or full moon.

© Getty Images

Christina Aguilera - The singer breaks her diet down into colors. The seven-color diet consists of eating foods of just one color per day.

© Getty Images

Elle Macpherson - It’s all about pH for the former supermodel. She follows an alkaline diet and avoids things such as alcohol and coffee.

© Getty Images

Lady Gaga - Booze is usually a no-no in any diet, but Gaga swears by it. Her 'drunk diet' includes whiskey and other alcoholic drinks!

© Getty Images

Renée Zellweger - Ice cubes are a staple in Zellweger's diet.  This frozen treat is a sure way to keep your calories in check!

© Getty Images

Sandra Bullock - Say hello to hemorrhoid cream and goodbye to puffy eyes. You can thank Sandra Bullock for the tip.

© Getty Images

Suki Waterhouse -

Looking to add texture to your hair? Why not use Waterhouse’s hack and rinse it with Coca-Cola?

© Getty Images

Jennifer Lopez -

J.Lo is a big fan of essential oils. She uses a fruit-based oil that allegedly affects the liver enzymes and helps with weight loss.

© Getty Images

Natalie Portman - The actress went on a strict diet of almonds and carrots in preparation for her role in 'Black Swan.'

© Getty Images

Sarah Michelle Gellar - Cabbage soup for seven days. Apparently that’s what you need to detox, according to Gellar.

© Getty Images

Josephine Skriver -

The model keeps it simple: a mug of hot water first thing in the morning and another one before bed.

© Getty Images

Olivia Munn - Baked Japanese sweet potatoes sprinkled with olive oil and cinnamon seem to do the trick for Munn.

© Getty Images

Carine Roitfeld -

Drinking green tea during the day and vodka at night seems to work for Roitfeld.

© Getty Images

Heidi Klum - Klum swears by Epsom salt baths. The model likes to soak in a bath full of Epsom salt before attending big events.

© Getty Images

Cindy Crawford - The former supermodel likes to use milk as a face moisturizer. Looking at her skin, she must be doing something right!

© Getty Images

Adriana Lima - The supermodel is a fan of the keto diet while preparing for the Victoria's Secret Fashion Show. The diet is based on low carbs, high fat, and high protein.

© Getty Images

Blake Lively - If you think mayonnaise can only be used in food, think again. Lively applies it to her hair, and as you can see, it looks lush!

© Getty Images

Snooki - A cookie diet? Why not!? The 'Jersey Shore' star eats six cookies a day.

© Getty Images

Salma Hayek -

The secret to a beautiful hair? Guacamole, egg yolks, and mayonnaise.

See also: Most iconic celebrity beauty marks

© Getty Images