Is it possible to track micronutrients on MyFitnessPal? This would be ideal to track overall quality of foods being eaten. Thank you.

you can track the ones with the USDA requires to be on the food labels, the targets we're given are based on the values from the 2000 calorie diet sample as per US food labeling.
Macros and then sodium, cholesterol, potassium, Vit A, vit C, calcium and iron.

Beyond that it's not "required" to be on the label so getting accurate info for a lot of it would be hard, some of the items in the database that DO have potassium don't have it listed.