Display ketogenic ratio on dashboard

For people on the ketogenic diet it would be helpful to have a display of the current keto-ratio for the day.
Something like this:

It could also be added as a dial, like the nutrient balance markers to make it fancy.

The value of KR (keto ratio) in this example was calculated using the simple formula KR = F / (C+P), where F is grams of fat; P is grams of protein and C is grams of carbohydrate.
There is also the Withrow formula: KR = (0.9 F + 0.46 P) / (C + 0.58 P + 0.1 F) that would yield slightly different results.

Anyhow, I think everybody on the ketogenic diet would greatly benefit from this very simple feature... :)