Nutrium has a wide number of food composition databases, check them here. But, if you are searching for a specific food product and can't find it, you can always add it to your own database in a very simple way.
To add a new food you need to:
Access the section "Foods" on the left sidebar menu;
Click in the "+" sign or in "Create food";
Register the name of the new food and the nutritional information per 100 grams (make sure to also select a food group);
Click on "Common measures" to give your new food its usual portion, such as a tablespoon, glass, slice:
Once that food item is created it will be available in the section "Meal Plan" included in the database "My foods".
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