How do I make my diary visible to other users?

To allow others to view your diary, you must adjust your Diary Sharing Settings.

Sharing Permissions on the Web

In the Android, iPad and iPhone apps

In the Menu (or "More" page) tap "Settings" then "Privacy Center" then "Sharing & Privacy" then "Diary Sharing." Select your preference from "Public," "Friends Only", or "Locked with a key" and save your changes.

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Friends can also visit your profile to View your Food and Exercise Diary if you've enabled it in your diary sharing settings.

To visit a friend's diary on the Web

Click "My Home" then "Friends" then click on a friend in the list. Select your friend's username, then "View Diary". You can copy meals from there.
Another way to access your friends profile is to go directly to their profile URL. http://www.myfitnesspal.com/<INSERT_USERNAME_HERE>

In the iPhone, iPad and Android apps

In the app, go to the "more" menu, then click "Friends". Where it says "You are friends!" there will be three icons (remove friend, diary, and send private message). Click the one that looks like a book in the center, this will open their diary. You can copy meals from there. Here's more information on how to Copy meals from friends