ukoliko je posna/mrsna u kontekstu pravoslavnog posta, onda nijedan od navedenih odgovora nije tačan. u tom kontekstu termini su specifični, i ne mogu se prevoditi. ostaje posna/mrsna uz opis šta to uključuje ili isključuje. najbliže ovom posna je "vegan", ali vegani ne jedu ribu ni med. jednostavno uz neku fuss notu opišite "just food of plant origin plus fish and honey" i za mrsna "all food of animal origin"

pogledajte reference ispod zašto ponuđeni odgovori ne idu u kontekst:

What is Lenten food?
Also, on Ash Wednesday, Good Friday and all Fridays during Lent, adult Catholics over the age of 14 abstain from eating meat. During these days, it is not acceptable to eat lamb, chicken, beef, pork, ham, deer and most other meats. However, eggs, milk, fish, grains, and fruits and vegetables are all allowed
https://www.forkliftandpalate.com/blog/what-can-you-eat-duri...

"lean" znači da je nešto dijetalno npr. obrano mijeko, krto meso.. ali to ne znači da je hrana posna

“Lean” and “Extra lean” are used to describe the fat content of meat, poultry, seafood, and game meats. “Lean” means the food has less than 10 grams of fat, less than 4 grams saturated fat and less than 95 milligrams of cholesterol per serving and per 100 grams.
https://www.harvestcoop.com/community/nutritional-informatio...