Garmin Connect - Nutrition - Why do I add the nutrients if I can't track them?

I have used Garmin Connect for fitness related features and was pleased that they now offer a Nutrition tracking section.

Although you enter nutrient information for several areas, it only tracks Calories, Protein, Fat, and Carbs.

Why does it allow you to enter Calcium, Potassium, Iron, Sugar, and the like, but it doesn't actually track or allow for goal setting?  

Am I missing something or is that truly not available yet (or will it ever be)?  Thanks.