Pinning a nutrient decreases the number of taps required to access charts for that nutrient and see foods that have contributed to your intake on any given day. To pin a nutrient:
Go to More and tap on Customize Dashboard
Scroll to Nutrition and tap Add or Remove Nutrients
You will be taken to a page where you can configure nutrients.
Once you are there, you will see a list of all supported nutrients. Toggle which nutrients you wish to be displayed on the Dashboard.
Once you are done, you can tap the X in the top left corner, and then tap the checkmark at the top right corner of the Customize Dashboard screen to save changes.
The nutrients you’ve toggled on will appear on the Dashboard under the Nutrition section.