Originally Posted by JALPak

Who said they are ignoring? Again that's just the speculation on your end just like claiming the airline food is the most likely candidate. It takes time to investigate and reply depending on how you phrased and submitted your complaint. Legal may need to be involved.

Google how long food poisoning last or just refer to the page you linked. It does not usually end within 24 hr window from you first eat your food.

If you think JAL isn't a responsible food provider you should take other carriers for the sake of your health. Would be very irresponsible of you picking this carrier for your friends and families if this is what you believe.

FYI, JAL doesn't post on FT. So you can give up on the hope that You will get an official reply here. But at least you've got 3 different FTers told you other food you ate is more likely to be the source based on the partial timeline you provided. I hope that's at least some helpful information for you.