Can I share recipes, meals, and created foods with someone else?

Yes!

To share a recipe, meal, or created food item, first navigate to its edit screen. You can edit a recipe, meal, or food item from the "Food Library" section in the Settings tab. On the edit screen, tap the share button in the bottom-left to share via AirDrop, Messages, or other app.

To share a logged meal, tap the meal's "…" button in the History tab, then select "Share Meal".