I will leave the others "craving/vontades" to the other participants.

    "Perdi a vontade de comer."

    I lost my appetite.   

    [after seeing a roach roaming in the kitchen of that restaurant...]

   I`m not hungry any more. 

   [my lunch break was at 11:00 h, but I was busy on that report and it´s 14:30 h, right now, when I just finished it!]

     It´s 12:00 a.m.  and I don't have any appetite.

    [due to jet lag?]

    I sit down to eat and all of a sudden my appetite is gone.

    [A fifth-month pregnant woman! ]

    I have completely lost my appetite.

    [If you are a traveler to Filipinas or China, and you have just ordered a Filipino "dish balut", or Chinese "Century egg fast", without knowing the dish...!]

http://news.travel.aol.com/2011/05/23/worlds-grossest-foods-flying-maggot-cheese-anyone/

    After I finally get past the morning sickness, there's a new problem. I tend to lose my appetite 1/3 to 1/2 way through meals (not the case with fast food though - interesting, huh?).   If the meal is homemade, it will taste delicious at the beginning and then I lose all desire to eat any more....Has anyone else experienced this?

   [Pregnant Forum - post ]

    The biggest downer came when I noticed a long black hair in my food. I really get grossed out by hair for some reason, and quickly lost my appetite.     I have short blondish hair, so it was definitely not mine.      [In a restaurant review ]

    I'm only 6 weeks pregnant and I have no apetite whatsoever. Nothing sounds good to me, I have no cravings, nothing... no nausea either.

     [  "perdi o apetite completamente"  - from a Forum about  pregnancy etc...]

     Think I’m losing my appetite
     I’m not hungry no more (more)
     I don’t want it no more

   [from lyrics, notice the double negative, but it´s music stupid! he he.]

    "Mom, I'm hungry! what's for lunch?" -"Spinach" "Umm, I think I lost my appetite"

     [From facebook, post created by a picky eater! Spinach blew her appetite...]