I have put together a list of f(x) member's diets.

Krystal -

I believe Krystal is natural skinny, but she has dieted in the past before. She has never revealed her diet, but it is most likely just cutting a lot of calories and exercising like crazy.

Sulli -

Many people believe Sulli had liposuction, and there are a lot of pictures that look like she did, but we can’t really know for sure. She and Amber demonstrated their ‘plastic bag diet’ on Star King. You inflate a plastic bag and have to keep it off the ground without using your hands.

Video: https://www.youtube.com/watch?v=woaYixdK5A4

Victoria -

It may be a myth, but once Victoria was said to drink red bean water before every meal. Other stars that have done this to lose weight are T.O.P from BIGBANG, and Taiwanese actress and model Sonia Sui! Red beans (also called Adzuki and Azuki beans) have tons of health and weight loss benefits! They’re high in dietary fiber; protein; potassium; magnesium; iron; and lots of B-vitamins. These promote regular bowel movements, and help lower cholesterol. To get a nice V-shaped face, drinking Adzuki water reduces puffiness, and water retention (if your weight is due to carbs holding lots of water). They’re also great for skin! *see homemade recipes below*

NOTE: KIDNEY BEANS AND ADZUKI BEANS ARE NOT THE SAME. Adzuki beans are generally smaller, and brighter in color. Look at the label~

Red bean water recipe:

Boil red beans in water for 20 minutes. You do not want the red beans to crack, or you will get starchy water. It should turn a dark reddish-brown when it’s done. Filter with a strainer, and store in the refrigerator. NOTE: Red bean water does not last very long; don’t keep longer than three days!

And like all foods and drinks, don’t eat or drink too much! It’s only healthy if you drink a normal amount~

(Source: http://www.vivawoman.net/2015/08/sonia-sui-beauty-secret-for-v-shaped-face/)

Red bean facial recipe:

http://www.braintreeclothing.com/blog/2015/03/17/homemade-organic-adzuki-bean-face-scrub/

http://multiculturalbeauty.about.com/od/Body/fl/Homemade-Adzuki-Bean-Facial-and-Body-Scrubs.htm

http://www.organic-beauty-recipes.com/face-care-recipes/natural-face-scrub-recipes/

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Here’s a picture of one Victoria's meals:

http://images.kpopstarz.com/data/images/full/23426/f.jpg?w=600

And her amazing body:

http://idolwow.com/latest/fx-victoria-flaunts-flat-stomach-reveals-her-workout-secrets-photos-20150603

Luna -

Luna has never revealed her diet, but recently she lost TONS of weight. She most likely just ate a couple hundred calories a day, then worked out A LOT (DON’T try this). That's basically what all idols do to lose weight. Right now, she is underweight in my opinion. It looks unhealthy, especially in these pictures.

http://3.bp.blogspot.com/-xDKcB1Yy-O8/VcDhroGIsHI/AAAAAAAAHOc/npNFzXJCIrc/s1600/luna.jpg

http://4.bp.blogspot.com/-nPd60rw9ErE/VO4yMU4JGvI/AAAAAAAAC1U/TWMfTXm3pic/s1600/1424860538_858027.jpg

http://cdn.koreaboo.com/wp-content/uploads/2015/10/fx-luna.jpg

https://40.media.tumblr.com/7441e6ba1c49ca846e3361085a1e162c/tumblr_inline_nvnmxuvsUN1qksesd_540.png

http://1.bp.blogspot.com/-4qyeLiRRDLA/VLV3URNDx7I/AAAAAAAA2Nc/ermbV614RT0/s1600/201501131613201113_1.jpg

http://images.kpopstarz.com/data/images/full/436108/luna.jpg

http://41.media.tumblr.com/f870c29725359c4b043922b988695168/tumblr_nwfhldy4mC1swv1dko2_250.png

Hopefully she will start eating and resting more. <3

Amber -

Amber’s diet secret is eating every 2-3 hours. This speeds up your metabolism and keeps you full throughout the day so you don’t overeat. She also does the plastic bag workout, and likes exerising.

Here’s her video about dieting:

https://www.youtube.com/watch?v=f_huo1lZa_E

A/N:
 

So there it is...f(x)’s diet. Comment what you want next!