Inspiring vegan & eco travel and promoting & encouraging local vegan movements
Here are a few easy one's that'll help out I hope:
Watashi wa niku o tabemasen (I don't eat meat)
Watashi wa sakana o tabemasen (I don't eat fish)
Watashi wa tamago o tabemasen (I don't eat egg)
Watashi wa gyuunyuu o nomimasen (I don't drink milk)
If you're feeling gusty you can spit out the long version:
Watashi wa niku to sakana to tamago to gyuunyuu o tabemasen.
Or you can try the following which is trickier but will help get you past the "picky eater" barrier (though I've not had a problem with it):
Watashi wa [niku] o taberu koto ga dekimasen (I can't/am unable to eat [meat])
Gohan to yasai to tofu dake kudasai (Rice, vegetables, and tofu only please)
(point and ask) Kore wa nan desuka? (what is this?)
[Sakana] ga arimasuka? Is there [fish]. (listen for "hai" for yes, "iie" (pronounced "ee-eh") or something that ends with "sen" or "nai" for no)
If you are drawing a blank and can't remember the phrase just say the name of the thing you can't eat and make an X with your arms.
niku - meat
gyuuniku - beef
toriniku - chicken
sakana - fish
tamago - egg
bonito dashi - fish stock, very common
gyuunyuu - milk
And as always, regardless the outcome, don't forget your good manners at the end with:
arigato gozaimas (thank you)
Hope this helps.