r/RedditAlternatives is another one that might be worth mentioning instances on.
I recommend Waistline if you use Android. It’s on F-Droid.
The barcode scanner uses a community run database (Open Food Facts) for nutrition facts so you might find that you need to manually input items or correct outdated info more often than compared to the more popular My Fitness Pal. Obviously that gets easier once you build up a collection of your usual foods in the app.
They provide games to claim each week as part of the paid Amazon Prime subscription. So they are “free” if you already have another reason to have Prime.
I think you can edit your post on Lemmy to correct it.
Not enough people know about that very useful website. Although I think that Lemmy should have this kind of complete search as a native feature without needing to go to a third party website.
Some of my favorite communities that are fun and active are: