If you can’t find a food, you can add it manually: open your nutrition diary, go to + Add Food and press + FOOD or QUICK button.
+ FOOD will open a form, where you can input full information of a product, including name, brand, serving size and nutrition information. After you save it once, you can always find it under My Food tab in the search window.
Quick Add is a quick way to add food - it opens a simple form where you can add name, calories, fat, carb, and protein.
Using either of these features will add your custom food to history, so you can find it quickly next time.